{"id":49123,"date":"2026-08-28T21:56:30","date_gmt":"2026-08-28T21:56:30","guid":{"rendered":"https:\/\/www.av.com\/blog\/?p=49123"},"modified":"2026-08-28T21:56:34","modified_gmt":"2026-08-28T21:56:34","slug":"why-does-my-subwoofer-hum","status":"publish","type":"post","link":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/","title":{"rendered":"Why Does My Subwoofer Hum? Here\u2019s How to Fix the Noise"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#Key_takeaways\" >Key takeaways<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#Why_does_my_subwoofer_hum\" >Why does my subwoofer hum?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#1_The_subwoofer_itself_is_causing_the_hum\" >1. The subwoofer itself is causing the hum<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#How_to_fix\" >How to fix<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#2_Power_cord_interference\" >2. Power cord interference<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#How_to_fix-2\" >How to fix<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#3_Ground_issues\" >3. Ground issues<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#How_to_fix-3\" >How to fix<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#4_Poorly_shielded_cables\" >4. Poorly shielded cables<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#How_to_fix-4\" >How to fix<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#5_Something_has_changed_in_your_setup\" >5. Something has changed in your setup<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#How_to_fix-5\" >How to fix<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#FAQs\" >FAQs<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#How_do_I_stop_my_subwoofer_from_humming\" >How do I stop my subwoofer from humming?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#Why_is_my_subwoofer_humming_even_though_there_is_no_input\" >Why is my subwoofer humming even though there is no input?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#What_are_the_signs_of_a_blown_subwoofer\" >What are the signs of a blown subwoofer?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#Final_thoughts\" >Final thoughts<\/a><\/li><\/ul><\/nav><\/div>\n<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; admin_label=&#8221;Intro&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p>In nature, there are hums that are wondrous to hear, like a soulful tune or a hummingbird or a bee taking flight; these are the marvels of nature, and who wouldn\u2019t want to hear them?<\/p>\n<p>For audiophiles and cinephiles alike, there is another type of hum we don\u2019t like to hear, and that\u2019s the electrical kind, in particular, the dreaded <strong><a href=\"https:\/\/www.av.com\/subwoofers\" target=\"_blank\" rel=\"noopener\">subwoofer<\/a><\/strong> hum.<\/p>\n<p>So, <strong>why does a subwoofer hum<\/strong>? Believe it or not, this is quite a common issue for anyone who owns a sub. Because your electronics need power to work, sometimes the cycling of the AC mains can be heard through your subwoofer.<\/p>\n<p>How can I solve this, you might ask? Well, this step-by-step guide will help you identify what exactly is affecting your subwoofer. You should then know how to solve that unwanted subwoofer hum, enabling you to enjoy silence when the room ought to be quiet.<\/p>\n<p>And the fix for most problems is usually easy, but be prepared, as there could be more to what\u2019s going on; a simple hum could be a plethora of things. So, let&#8217;s get started and eliminate your subwoofer hum.<\/p>\n<p>[\/et_pb_text][et_pb_image src=&#8221;https:\/\/www.av.com\/blog\/wp-content\/uploads\/2025\/07\/AV-Trade-in-Blog-Banner.jpg&#8221; alt=&#8221;AV Trade-In In-Page Banner&#8221; title_text=&#8221;AV-Trade-in-Blog-Banner&#8221; url=&#8221;https:\/\/www.av.com\/trade-in?utm_source=blog&#038;utm_medium=banner&#038;utm_campaign=blog+av+trade+in&#8221; url_new_window=&#8221;on&#8221; admin_label=&#8221;AV Trade-In In-Page Banner&#8221; _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; global_module=&#8221;46457&#8243; theme_builder_area=&#8221;post_content&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;20px||||false|false&#8221; hover_enabled=&#8221;0&#8243; border_width_top=&#8221;2px&#8221; border_color_top=&#8221;gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f&#8221; global_colors_info=&#8221;{%22gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f%22:%91%22border_color_top%22%93}&#8221; theme_builder_area=&#8221;post_content&#8221; admin_label=&#8221;Key takeaways&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Key_takeaways\"><\/span>Key takeaways<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Perform the subwoofer hum test by isolating the subwoofer. This will help you identify if it&#8217;s faulty!<\/li>\n<li>If your subwoofer is humming a near G or B-Flat pitch, pay attention to the proximity of the power cord and subwoofer cable.<\/li>\n<li>Connect your subwoofer and amplifier to the same electrical isolation power socket extension hub.<\/li>\n<li>Use the infinity method when coiling excessive cable runs to reduce cable-induced electronic noise.<\/li>\n<li>Being methodical when connecting your electronics is the only way to identify if another source is causing your subwoofer to hum.<\/li>\n<\/ul>\n<p>[\/et_pb_text][et_pb_button url_new_window=&#8221;on&#8221; button_text=&#8221;SHOP SUBWOOFERS&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;14px&#8221; button_text_color=&#8221;#FFFFFF&#8221; button_bg_color=&#8221;#0e95cf&#8221; button_border_width=&#8221;0px&#8221; button_border_color=&#8221;#0e95cf&#8221; button_font=&#8221;Arial|700|||||||&#8221; button_icon=&#8221;&#x35;||divi||400&#8243; button_icon_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;10px|30px|10px|30px|false|false&#8221; hover_enabled=&#8221;0&#8243; box_shadow_style=&#8221;preset6&#8243; box_shadow_blur=&#8221;2px&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; button_url=&#8221;https:\/\/www.av.com\/subwoofers&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_button][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;20px||||false|false&#8221; hover_enabled=&#8221;0&#8243; border_width_top=&#8221;2px&#8221; border_color_top=&#8221;gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f&#8221; global_colors_info=&#8221;{%22gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f%22:%91%22border_color_top%22%93}&#8221; theme_builder_area=&#8221;post_content&#8221; admin_label=&#8221;Why does my subwoofer hum?&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Why_does_my_subwoofer_hum\"><\/span>Why does my subwoofer hum?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"1_The_subwoofer_itself_is_causing_the_hum\"><\/span>1. The subwoofer itself is causing the hum<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>This is the one that everyone blames first, but in reality, most subwoofers are very robust, and it\u2019s usually other components that cause the hum. However, we can\u2019t ignore factors such as the age of your subwoofer, which could also be responsible for the noise.<\/p>\n<p>Yes, components can fail at any age, but it\u2019s more likely to happen as they get older or if a power surge affects one of their critical parts.<\/p>\n<p class=\"isSelectedEnd\">Why this happens is down to the sensitivity of some of these internal components, which require AC-to-DC conversion to work. Microprocessors, capacitors, resistors, and other circuitry can be damaged if this conversion isn\u2019t working as intended, potentially causing components to overheat and fail.<\/p>\n<p>The subwoofer hum test is simple, as shown in the \u201chow to fix\u201d section below. If the test indicates an issue with your subwoofer, you\u2019ll need to contact the support team for a fix.<\/p>\n<h5><span class=\"ez-toc-section\" id=\"How_to_fix\"><\/span>How to fix<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<p>The subwoofer hum test is simple. Power down the subwoofer and unplug everything except the mains cable. Then, turn the subwoofer back on. If you can still hear a hum, contact the brand\u2019s support team.<\/p>\n<hr \/>\n<h4><span class=\"ez-toc-section\" id=\"2_Power_cord_interference\"><\/span>2. Power cord interference<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p class=\"isSelectedEnd\">No, this isn\u2019t a myth, and depending on your geographical location, it can affect you at different frequencies. Most electrical systems operate at either 50Hz or 60Hz, with harmonic hum occurring at 100Hz or 120Hz, and so on.<\/p>\n<p class=\"isSelectedEnd\">These hums also create a near-musical pitch, with 50Hz being close to a G and 60Hz close to a B-flat.<\/p>\n<p>So, what\u2019s happening? Essentially, a power cord may be too close to the subwoofer cable. With a gap of just 2.54cm, and depending on the shielding, the subwoofer cable can pick up electrical interference from the power cord. As above, the fix is fairly straightforward, although sometimes a more substantial change may be required due to cabling limitations.<\/p>\n<h5><span class=\"ez-toc-section\" id=\"How_to_fix-2\"><\/span>How to fix<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<p class=\"isSelectedEnd\">Create some distance between the power cords and cabling. Increasing the gap from 2.54cm to 10.16cm reduces the induced effect to around 6.25%, giving even poorly shielded cables a fighting chance.<\/p>\n<p>Alternatively, it may be time to invest in a better mains cable with improved shielding.<\/p>\n<hr \/>\n<h4><span class=\"ez-toc-section\" id=\"3_Ground_issues\"><\/span>3. Ground issues<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p class=\"isSelectedEnd\">This usually happens when your subwoofer is located in a different area of the room from your other electronics. Those who perform the subwoofer crawl may encounter this more often, while others may simply prefer not to have their subwoofer close to the rest of their equipment.<\/p>\n<p class=\"isSelectedEnd\">So, why can this create a subwoofer hum when everything you\u2019ve read says you should perform the subwoofer crawl or that a subwoofer can be placed almost anywhere in a room?<\/p>\n<p>The answer is simple, and it has more to do with your home and its plug sockets. Electrical equipment either needs to be earthed or use a double-insulation system. When you plug your equipment into different sockets, depending on how those sockets are connected at the consumer unit, you can create a ground loop. This can present itself as a subwoofer hum and may be either straightforward or a little more difficult to fix.<\/p>\n<h5><span class=\"ez-toc-section\" id=\"How_to_fix-3\"><\/span>How to fix<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<p>Ideally, your subwoofer and amplifier should be plugged into the same ring mains to eliminate the ground-loop issue. This might mean using a long, well-insulated mains cable to reach the same gang of plug sockets or moving the subwoofer closer so both can use the same sockets. If that fails, you may need to purchase an RCA isolation transformer.<\/p>\n<hr \/>\n<h4><span class=\"ez-toc-section\" id=\"4_Poorly_shielded_cables\"><\/span>4. Poorly shielded cables<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p class=\"isSelectedEnd\">We mentioned the importance of using a shielded subwoofer cable, and one of the reasons is that a 75\u03a9 subwoofer cable can essentially act like a TV aerial, picking up interference from the environment around it.<\/p>\n<p class=\"isSelectedEnd\">Its job is to send a signal from the source to the subwoofer, and depending on its length, shielding, or even a simple user error, you might find yourself hearing that dreaded subwoofer hum.<\/p>\n<p class=\"isSelectedEnd\">Long, poorly shielded subwoofer cables are more susceptible to interference, which is why better-quality 75\u03a9 subwoofer cables are available. These use different materials and shielding methods to help minimise the problem.<\/p>\n<p>You can also introduce subwoofer hum by coiling excess cable to hide it away and create a neater setup. Both of these issues are easily solved, and one of the solutions is completely free.<\/p>\n<h5><span class=\"ez-toc-section\" id=\"How_to_fix-4\"><\/span>How to fix<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<p class=\"isSelectedEnd\">If your subwoofer cable is picking up interference, it could be an issue covered in step two. However, if you\u2019ve already addressed this area, the problem is most likely the subwoofer cable itself or the way you\u2019ve coiled any excess cable.<\/p>\n<p class=\"isSelectedEnd\">The free fix is to uncoil the subwoofer cable and recoil it using an infinity loop, so the cable crosses itself at a 90\u00b0 angle at the crossover point.<\/p>\n<p>If you haven\u2019t coiled any excess subwoofer cable, you may need to upgrade to a cable with better shielding.<\/p>\n<hr \/>\n<h4><span class=\"ez-toc-section\" id=\"5_Something_has_changed_in_your_setup\"><\/span>5. Something has changed in your setup<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p class=\"isSelectedEnd\">This is going to be the hardest subwoofer hum to solve, as it generally requires more investigation. If your subwoofer has only recently started humming, look at anything you\u2019ve recently added or changed in your setup.<\/p>\n<p class=\"isSelectedEnd\">If the setup is new, the process can be easy or difficult depending on how sophisticated your hi-fi or home cinema system is. For those with an HT bypass setup, there are added complications, particularly if you\u2019re connecting a high-level subwoofer input to the integrated stereo amplifier and the LFE input to the AV receiver.<\/p>\n<p>Another factor could be that some of your electronics don\u2019t use an earth and instead employ a double-insulation system. The fixes for these issues are generally the same and can take time, as there\u2019s rarely a quick solution.<\/p>\n<h5><span class=\"ez-toc-section\" id=\"How_to_fix-5\"><\/span>How to fix<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<p class=\"isSelectedEnd\">The quickest way to solve this system issue is to go right back to the start. Power down and unplug your system, then disconnect everything. Make sure none of your cables are coiled unless you\u2019re using the infinity method, and try to keep mains cables and interconnects at least 2.54cm apart when reconnecting them.<\/p>\n<p class=\"isSelectedEnd\">Reconnect each device one at a time and test whether it is introducing the hum. If you reconnect every device without hearing a hum, it was most likely the way the system was originally wired that caused the issue.<\/p>\n<p class=\"isSelectedEnd\">If you identify a problem device, contact the brand\u2019s support team, as it shouldn\u2019t be introducing a hum into the system and could indicate a fault.<\/p>\n<p>For an HT bypass system, ensure you\u2019ve connected the high-level cable correctly using the latest method. This involves bypassing the traditional negative connection and finding a ground on the amplifier itself to isolate the negative signal.<\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;20px||||false|false&#8221; hover_enabled=&#8221;0&#8243; border_width_top=&#8221;2px&#8221; border_color_top=&#8221;gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f&#8221; global_colors_info=&#8221;{%22gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f%22:%91%22border_color_top%22%93}&#8221; theme_builder_area=&#8221;post_content&#8221; admin_label=&#8221;FAQs&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h3><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"How_do_I_stop_my_subwoofer_from_humming\"><\/span>How do I stop my subwoofer from humming?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>There are plenty of reasons why your subwoofer might hum, and our easy guide takes you through five simple steps to identify the cause and solve the problem.<\/p>\n<hr \/>\n<h4><span class=\"ez-toc-section\" id=\"Why_is_my_subwoofer_humming_even_though_there_is_no_input\"><\/span>Why is my subwoofer humming even though there is no input?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Your subwoofer humming, even though there&#8217;s no input, is either a ground-loop issue or something more serious, such as a faulty sub. Let\u2019s rule out the worst first by performing the subwoofer hum test: isolate the subwoofer with only the power cable connected. If it still hums, it could be faulty. For everything else, follow steps two to five.<\/p>\n<hr \/>\n<h4><span class=\"ez-toc-section\" id=\"What_are_the_signs_of_a_blown_subwoofer\"><\/span>What are the signs of a blown subwoofer?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>A subwoofer hum can indicate a repairable fault in most cases, while rattling, distorted sound, or banging and popping during playback could mean that something more serious is wrong with your subwoofer. In these cases, you\u2019ll need to contact the brand\u2019s support team.<\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;20px||||false|false&#8221; hover_enabled=&#8221;0&#8243; border_width_top=&#8221;2px&#8221; border_color_top=&#8221;gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f&#8221; global_colors_info=&#8221;{%22gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f%22:%91%22border_color_top%22%93}&#8221; theme_builder_area=&#8221;post_content&#8221; admin_label=&#8221;Final thoughts&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Final_thoughts\"><\/span>Final thoughts<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p class=\"isSelectedEnd\">Our guide to <strong>subwoofer hum <\/strong>may have surprised you! There&#8217;s a range of reasons why a sub might make that annoying noise, but hopefully our solutions\u00a0can help you remove or reduce the hum to an inaudible level.<\/p>\n<p>Many of the solutions are free, while others may require you to change cables or, in more difficult cases, purchase an RCA isolation transformer. Either way, there are plenty of things you can try to successfully reduce or eliminate your subwoofer hum.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; column_structure=&#8221;1_2,1_2&#8243;][et_pb_column _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; type=&#8221;1_2&#8243;][et_pb_button url_new_window=&#8221;on&#8221; button_text=&#8221;SHOP SUBWOOFERS&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;14px&#8221; button_text_color=&#8221;#FFFFFF&#8221; button_bg_color=&#8221;#0e95cf&#8221; button_border_width=&#8221;0px&#8221; button_border_color=&#8221;#0e95cf&#8221; button_font=&#8221;Arial|700|||||||&#8221; button_icon=&#8221;&#x35;||divi||400&#8243; button_icon_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;10px|30px|10px|30px|false|false&#8221; hover_enabled=&#8221;0&#8243; box_shadow_style=&#8221;preset6&#8243; box_shadow_blur=&#8221;2px&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; button_url=&#8221;https:\/\/www.av.com\/subwoofers&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_button][\/et_pb_column][et_pb_column _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; type=&#8221;1_2&#8243;][et_pb_button url_new_window=&#8221;on&#8221; button_text=&#8221;READ MORE SPEAKER GUIDES&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;14px&#8221; button_text_color=&#8221;#FFFFFF&#8221; button_bg_color=&#8221;#0e95cf&#8221; button_border_width=&#8221;0px&#8221; button_border_color=&#8221;#0e95cf&#8221; button_font=&#8221;Arial|700|||||||&#8221; button_icon=&#8221;&#x35;||divi||400&#8243; button_icon_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;10px|30px|10px|30px|false|false&#8221; hover_enabled=&#8221;0&#8243; box_shadow_style=&#8221;preset6&#8243; box_shadow_blur=&#8221;2px&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; button_url=&#8221;https:\/\/www.av.com\/blog\/category\/speakers\/speakers-guides\/&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>So, why does a subwoofer hum? Believe it or not, this is quite a common issue for anyone who owns a sub. Because your electronics need power to work, sometimes the cycling of the AC mains can be heard through your subwoofer.<\/p>\n","protected":false},"author":14,"featured_media":49139,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"<p>In nature, there are hums that are wondrous to hear, like a soulful tune or a hummingbird or a bee taking flight; these are the marvels of nature, and who wouldn\u2019t want to hear them?<\/p><p>For audiophiles and cinephiles alike, there is another type of hum we don\u2019t like to hear, and that\u2019s the electrical kind, in particular, the dreaded subwoofer hum.<\/p><p>So, <strong>why does a subwoofer hum<\/strong>? Believe it or not, this is quite a common issue for anyone who owns a sub. Because your electronics need power to work, sometimes the cycling of the AC mains can be heard through your subwoofer.<\/p><p>How can I solve this, you might ask? Well, this step-by-step guide will help you identify what exactly is affecting your subwoofer. You should then know how to solve that unwanted subwoofer hum, enabling you to enjoy silence when the room ought to be quiet.<\/p><p>And the fix for most problems is usually easy, but be prepared, as there could be more to what\u2019s going on; a simple hum could be a plethora of things. So, let's get started and eliminate your subwoofer hum.<\/p><hr \/><h3>Key takeaways<\/h3><ul><li>Perform the subwoofer hum test by isolating the subwoofer. This will help you identify if it's faulty!<\/li><li>If your subwoofer is humming a near G or B-Flat pitch, pay attention to the proximity of the power cord and subwoofer cable.<\/li><li>Connect your subwoofer and amplifier to the same electrical isolation power socket extension hub.<\/li><li>Use the infinity method when coiling excessive cable runs to reduce cable-induced electronic noise.<\/li><li>Being methodical when connecting your electronics is the only way to identify if another source is causing your subwoofer to hum.<\/li><\/ul><hr \/><h3>Why does my subwoofer hum?<\/h3><h4>1. The subwoofer itself is causing the hum<\/h4><p>This is the one that everyone blames first, but in reality, most subwoofers are very robust, and it\u2019s usually other components that cause the hum. However, we can\u2019t ignore factors such as the age of your subwoofer, which could also be responsible for the noise.<\/p><p>Yes, components can fail at any age, but it\u2019s more likely to happen as they get older or if a power surge affects one of their critical parts.<\/p><p class=\"isSelectedEnd\">Why this happens is down to the sensitivity of some of these internal components, which require AC-to-DC conversion to work. Microprocessors, capacitors, resistors, and other circuitry can be damaged if this conversion isn\u2019t working as intended, potentially causing components to overheat and fail.<\/p><p>The subwoofer hum test is simple, as shown in the \u201chow to fix\u201d section below. If the test indicates an issue with your subwoofer, you\u2019ll need to contact the support team for a fix.<\/p><h5>How to fix<\/h5><p>The subwoofer hum test is simple. Power down the subwoofer and unplug everything except the mains cable. Then, turn the subwoofer back on. If you can still hear a hum, contact the brand\u2019s support team.<\/p><hr \/><h4>2. Power cord interference<\/h4><p class=\"isSelectedEnd\">No, this isn\u2019t a myth, and depending on your geographical location, it can affect you at different frequencies. Most electrical systems operate at either 50Hz or 60Hz, with harmonic hum occurring at 100Hz or 120Hz, and so on.<\/p><p class=\"isSelectedEnd\">These hums also create a near-musical pitch, with 50Hz being close to a G and 60Hz close to a B-flat.<\/p><p>So, what\u2019s happening? Essentially, a power cord may be too close to the subwoofer cable. With a gap of just 2.54cm, and depending on the shielding, the subwoofer cable can pick up electrical interference from the power cord. As above, the fix is fairly straightforward, although sometimes a more substantial change may be required due to cabling limitations.<\/p><h5>How to fix<\/h5><p class=\"isSelectedEnd\">Create some distance between the power cords and cabling. Increasing the gap from 2.54cm to 10.16cm reduces the induced effect to around 6.25%, giving even poorly shielded cables a fighting chance.<\/p><p>Alternatively, it may be time to invest in a better mains cable with improved shielding.<\/p><hr \/><h4>3. Ground issues<\/h4><p class=\"isSelectedEnd\">This usually happens when your subwoofer is located in a different area of the room from your other electronics. Those who perform the subwoofer crawl may encounter this more often, while others may simply prefer not to have their subwoofer close to the rest of their equipment.<\/p><p class=\"isSelectedEnd\">So, why can this create a subwoofer hum when everything you\u2019ve read says you should perform the subwoofer crawl or that a subwoofer can be placed almost anywhere in a room?<\/p><p>The answer is simple, and it has more to do with your home and its plug sockets. Electrical equipment either needs to be earthed or use a double-insulation system. When you plug your equipment into different sockets, depending on how those sockets are connected at the consumer unit, you can create a ground loop. This can present itself as a subwoofer hum and may be either straightforward or a little more difficult to fix.<\/p><h5>How to fix<\/h5><p>Ideally, your subwoofer and amplifier should be plugged into the same ring mains to eliminate the ground-loop issue. This might mean using a long, well-insulated mains cable to reach the same gang of plug sockets or moving the subwoofer closer so both can use the same sockets. If that fails, you may need to purchase an RCA isolation transformer.<\/p><hr \/><h4>4. Poorly shielded cables<\/h4><p class=\"isSelectedEnd\">We mentioned the importance of using a shielded subwoofer cable, and one of the reasons is that a 75\u03a9 subwoofer cable can essentially act like a TV aerial, picking up interference from the environment around it.<\/p><p class=\"isSelectedEnd\">Its job is to send a signal from the source to the subwoofer, and depending on its length, shielding, or even a simple user error, you might find yourself hearing that dreaded subwoofer hum.<\/p><p class=\"isSelectedEnd\">Long, poorly shielded subwoofer cables are more susceptible to interference, which is why better-quality 75\u03a9 subwoofer cables are available. These use different materials and shielding methods to help minimise the problem.<\/p><p>You can also introduce subwoofer hum by coiling excess cable to hide it away and create a neater setup. Both of these issues are easily solved, and one of the solutions is completely free.<\/p><h5>How to fix<\/h5><p class=\"isSelectedEnd\">If your subwoofer cable is picking up interference, it could be an issue covered in step two. However, if you\u2019ve already addressed this area, the problem is most likely the subwoofer cable itself or the way you\u2019ve coiled any excess cable.<\/p><p class=\"isSelectedEnd\">The free fix is to uncoil the subwoofer cable and recoil it using an infinity loop, so the cable crosses itself at a 90\u00b0 angle at the crossover point.<\/p><p>If you haven\u2019t coiled any excess subwoofer cable, you may need to upgrade to a cable with better shielding.<\/p><hr \/><h4>5. Something has changed in your setup<\/h4><p class=\"isSelectedEnd\">This is going to be the hardest subwoofer hum to solve, as it generally requires more investigation. If your subwoofer has only recently started humming, look at anything you\u2019ve recently added or changed in your setup.<\/p><p class=\"isSelectedEnd\">If the setup is new, the process can be easy or difficult depending on how sophisticated your hi-fi or home cinema system is. For those with an HT bypass setup, there are added complications, particularly if you\u2019re connecting a high-level subwoofer input to the integrated stereo amplifier and the LFE input to the AV receiver.<\/p><p>Another factor could be that some of your electronics don\u2019t use an earth and instead employ a double-insulation system. The fixes for these issues are generally the same and can take time, as there\u2019s rarely a quick solution.<\/p><h5>How to fix<\/h5><p class=\"isSelectedEnd\">The quickest way to solve this system issue is to go right back to the start. Power down and unplug your system, then disconnect everything. Make sure none of your cables are coiled unless you\u2019re using the infinity method, and try to keep mains cables and interconnects at least 2.54cm apart when reconnecting them.<\/p><p class=\"isSelectedEnd\">Reconnect each device one at a time and test whether it is introducing the hum. If you reconnect every device without hearing a hum, it was most likely the way the system was originally wired that caused the issue.<\/p><p class=\"isSelectedEnd\">If you identify a problem device, contact the brand\u2019s support team, as it shouldn\u2019t be introducing a hum into the system and could indicate a fault.<\/p><p>For an HT bypass system, ensure you\u2019ve connected the high-level cable correctly using the latest method. This involves bypassing the traditional negative connection and finding a ground on the amplifier itself to isolate the negative signal.<\/p><hr \/><h3>FAQs<\/h3><h4>How do I stop my subwoofer from humming?<\/h4><p>There are plenty of reasons why your subwoofer might hum, and our easy guide takes you through five simple steps to identify the cause and solve the problem.<\/p><hr \/><h4>Why is my subwoofer humming even though there is no input?<\/h4><p>Your subwoofer humming, even though there's no input, is either a ground-loop issue or something more serious, such as a faulty sub. Let\u2019s rule out the worst first by performing the subwoofer hum test: isolate the subwoofer with only the power cable connected. If it still hums, it could be faulty. For everything else, follow steps two to five.<\/p><hr \/><h4>What are the signs of a blown subwoofer?<\/h4><p>A subwoofer hum can indicate a repairable fault in most cases, while rattling, distorted sound, or banging and popping during playback could mean that something more serious is wrong with your subwoofer. In these cases, you\u2019ll need to contact the brand\u2019s support team.<\/p><hr \/><h3>Final thoughts<\/h3><p class=\"isSelectedEnd\">Our guide to <strong>subwoofer hum <\/strong>may have surprised you! There's a range of reasons why a sub might make that annoying noise, but hopefully our solutions\u00a0can help you remove or reduce the hum to an inaudible level.<\/p><p>Many of the solutions are free, while others may require you to change cables or, in more difficult cases, purchase an RCA isolation transformer. Either way, there are plenty of things you can try to successfully reduce or eliminate your subwoofer hum.<\/p>","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[63,66,139,5,7],"tags":[108,44,20,40],"class_list":["post-49123","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-home-cinema-guides","category-speakers-guides","category-guides-2","category-home-cinema","category-speakers","tag-blog-category-guides-2","tag-home-cinema","tag-speakers","tag-subwoofers"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why Does My Subwoofer Hum? Here\u2019s How to Fix the Noise | AV.com Blog<\/title>\n<meta name=\"description\" content=\"In this step-by-step guide, we show you how to identify what&#039;s causing your subwoofer to hum - and how to fix it.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Does My Subwoofer Hum? Here\u2019s How to Fix the Noise | AV.com Blog\" \/>\n<meta property=\"og:description\" content=\"In this step-by-step guide, we show you how to identify what&#039;s causing your subwoofer to hum - and how to fix it.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/\" \/>\n<meta property=\"og:site_name\" content=\"AV.com Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/AV.com.uk\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-28T21:56:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-28T21:56:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.av.com\/blog\/wp-content\/uploads\/2026\/08\/Featured-image-Why-Does-My-Subwoofer-Hum.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1330\" \/>\n\t<meta property=\"og:image:height\" content=\"665\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Shane\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@AVComUK\" \/>\n<meta name=\"twitter:site\" content=\"@AVComUK\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Shane\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"9 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/\"},\"author\":{\"name\":\"Shane\",\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/#\\\/schema\\\/person\\\/f88233696ff416604c5dee5219dc4cc4\"},\"headline\":\"Why Does My Subwoofer Hum? Here\u2019s How to Fix the Noise\",\"datePublished\":\"2026-08-28T21:56:30+00:00\",\"dateModified\":\"2026-08-28T21:56:34+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/\"},\"wordCount\":2380,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.av.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Featured-image-Why-Does-My-Subwoofer-Hum.jpg\",\"keywords\":[\"Guide\",\"Home Cinema\",\"Speakers\",\"Subwoofers\"],\"articleSection\":[\"Guides\",\"Guides\",\"Guides\",\"Home Cinema\",\"Speakers\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/\",\"url\":\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/\",\"name\":\"Why Does My Subwoofer Hum? Here\u2019s How to Fix the Noise | AV.com Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.av.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Featured-image-Why-Does-My-Subwoofer-Hum.jpg\",\"datePublished\":\"2026-08-28T21:56:30+00:00\",\"dateModified\":\"2026-08-28T21:56:34+00:00\",\"description\":\"In this step-by-step guide, we show you how to identify what's causing your subwoofer to hum - and how to fix it.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.av.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Featured-image-Why-Does-My-Subwoofer-Hum.jpg\",\"contentUrl\":\"https:\\\/\\\/www.av.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Featured-image-Why-Does-My-Subwoofer-Hum.jpg\",\"width\":1330,\"height\":665,\"caption\":\"Featured image - Why Does My Subwoofer Hum\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/why-does-my-subwoofer-hum\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.av.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Why Does My Subwoofer Hum? Here\u2019s How to Fix the Noise\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.av.com\\\/blog\\\/\",\"name\":\"AV.com Blog\",\"description\":\"News, tips, deals &amp; loads more...\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.av.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/#organization\",\"name\":\"AV.com Blog\",\"url\":\"https:\\\/\\\/www.av.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.av.com\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/AV.com-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.av.com\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/AV.com-logo.png\",\"width\":294,\"height\":171,\"caption\":\"AV.com Blog\"},\"image\":{\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/AV.com.uk\",\"https:\\\/\\\/x.com\\\/AVComUK\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.av.com\\\/blog\\\/#\\\/schema\\\/person\\\/f88233696ff416604c5dee5219dc4cc4\",\"name\":\"Shane\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/32638ab35fc9780bdaf5baa9f51ae1865829cec9f63ac7189fc8d95febb79de2?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/32638ab35fc9780bdaf5baa9f51ae1865829cec9f63ac7189fc8d95febb79de2?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/32638ab35fc9780bdaf5baa9f51ae1865829cec9f63ac7189fc8d95febb79de2?s=96&d=mm&r=g\",\"caption\":\"Shane\"},\"description\":\"When he\u2019s not found with his head buried in AV products, Shane's often creating unique Lego models. Alternatively, you'll find him playing the fast lad to his fellow runners, who regularly place bets on when Shane will race an unsuspecting cyclist up a hill.\",\"url\":\"https:\\\/\\\/www.av.com\\\/blog\\\/author\\\/shane-harrison\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Why Does My Subwoofer Hum? Here\u2019s How to Fix the Noise | AV.com Blog","description":"In this step-by-step guide, we show you how to identify what's causing your subwoofer to hum - and how to fix it.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/","og_locale":"en_GB","og_type":"article","og_title":"Why Does My Subwoofer Hum? Here\u2019s How to Fix the Noise | AV.com Blog","og_description":"In this step-by-step guide, we show you how to identify what's causing your subwoofer to hum - and how to fix it.","og_url":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/","og_site_name":"AV.com Blog","article_publisher":"https:\/\/www.facebook.com\/AV.com.uk","article_published_time":"2026-08-28T21:56:30+00:00","article_modified_time":"2026-08-28T21:56:34+00:00","og_image":[{"width":1330,"height":665,"url":"https:\/\/www.av.com\/blog\/wp-content\/uploads\/2026\/08\/Featured-image-Why-Does-My-Subwoofer-Hum.jpg","type":"image\/jpeg"}],"author":"Shane","twitter_card":"summary_large_image","twitter_creator":"@AVComUK","twitter_site":"@AVComUK","twitter_misc":{"Written by":"Shane","Estimated reading time":"9 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#article","isPartOf":{"@id":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/"},"author":{"name":"Shane","@id":"https:\/\/www.av.com\/blog\/#\/schema\/person\/f88233696ff416604c5dee5219dc4cc4"},"headline":"Why Does My Subwoofer Hum? Here\u2019s How to Fix the Noise","datePublished":"2026-08-28T21:56:30+00:00","dateModified":"2026-08-28T21:56:34+00:00","mainEntityOfPage":{"@id":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/"},"wordCount":2380,"commentCount":0,"publisher":{"@id":"https:\/\/www.av.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#primaryimage"},"thumbnailUrl":"https:\/\/www.av.com\/blog\/wp-content\/uploads\/2026\/08\/Featured-image-Why-Does-My-Subwoofer-Hum.jpg","keywords":["Guide","Home Cinema","Speakers","Subwoofers"],"articleSection":["Guides","Guides","Guides","Home Cinema","Speakers"],"inLanguage":"en-GB","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/","url":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/","name":"Why Does My Subwoofer Hum? Here\u2019s How to Fix the Noise | AV.com Blog","isPartOf":{"@id":"https:\/\/www.av.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#primaryimage"},"image":{"@id":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#primaryimage"},"thumbnailUrl":"https:\/\/www.av.com\/blog\/wp-content\/uploads\/2026\/08\/Featured-image-Why-Does-My-Subwoofer-Hum.jpg","datePublished":"2026-08-28T21:56:30+00:00","dateModified":"2026-08-28T21:56:34+00:00","description":"In this step-by-step guide, we show you how to identify what's causing your subwoofer to hum - and how to fix it.","breadcrumb":{"@id":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#primaryimage","url":"https:\/\/www.av.com\/blog\/wp-content\/uploads\/2026\/08\/Featured-image-Why-Does-My-Subwoofer-Hum.jpg","contentUrl":"https:\/\/www.av.com\/blog\/wp-content\/uploads\/2026\/08\/Featured-image-Why-Does-My-Subwoofer-Hum.jpg","width":1330,"height":665,"caption":"Featured image - Why Does My Subwoofer Hum"},{"@type":"BreadcrumbList","@id":"https:\/\/www.av.com\/blog\/why-does-my-subwoofer-hum\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.av.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Why Does My Subwoofer Hum? Here\u2019s How to Fix the Noise"}]},{"@type":"WebSite","@id":"https:\/\/www.av.com\/blog\/#website","url":"https:\/\/www.av.com\/blog\/","name":"AV.com Blog","description":"News, tips, deals &amp; loads more...","publisher":{"@id":"https:\/\/www.av.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.av.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/www.av.com\/blog\/#organization","name":"AV.com Blog","url":"https:\/\/www.av.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.av.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.av.com\/blog\/wp-content\/uploads\/2023\/08\/AV.com-logo.png","contentUrl":"https:\/\/www.av.com\/blog\/wp-content\/uploads\/2023\/08\/AV.com-logo.png","width":294,"height":171,"caption":"AV.com Blog"},"image":{"@id":"https:\/\/www.av.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/AV.com.uk","https:\/\/x.com\/AVComUK"]},{"@type":"Person","@id":"https:\/\/www.av.com\/blog\/#\/schema\/person\/f88233696ff416604c5dee5219dc4cc4","name":"Shane","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/secure.gravatar.com\/avatar\/32638ab35fc9780bdaf5baa9f51ae1865829cec9f63ac7189fc8d95febb79de2?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/32638ab35fc9780bdaf5baa9f51ae1865829cec9f63ac7189fc8d95febb79de2?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/32638ab35fc9780bdaf5baa9f51ae1865829cec9f63ac7189fc8d95febb79de2?s=96&d=mm&r=g","caption":"Shane"},"description":"When he\u2019s not found with his head buried in AV products, Shane's often creating unique Lego models. Alternatively, you'll find him playing the fast lad to his fellow runners, who regularly place bets on when Shane will race an unsuspecting cyclist up a hill.","url":"https:\/\/www.av.com\/blog\/author\/shane-harrison\/"}]}},"publishpress_future_action":{"enabled":false,"date":"2026-09-07 10:17:58","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.av.com\/blog\/wp-json\/wp\/v2\/posts\/49123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.av.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.av.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.av.com\/blog\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/www.av.com\/blog\/wp-json\/wp\/v2\/comments?post=49123"}],"version-history":[{"count":4,"href":"https:\/\/www.av.com\/blog\/wp-json\/wp\/v2\/posts\/49123\/revisions"}],"predecessor-version":[{"id":49143,"href":"https:\/\/www.av.com\/blog\/wp-json\/wp\/v2\/posts\/49123\/revisions\/49143"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.av.com\/blog\/wp-json\/wp\/v2\/media\/49139"}],"wp:attachment":[{"href":"https:\/\/www.av.com\/blog\/wp-json\/wp\/v2\/media?parent=49123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.av.com\/blog\/wp-json\/wp\/v2\/categories?post=49123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.av.com\/blog\/wp-json\/wp\/v2\/tags?post=49123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}