FiiO K19 Desktop DAC and Headphone Amplifier, Silver

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Colour: Silver

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Key Features

Studio-grade desktop DAC/Amp
DEL (Dual-Engine Limiter) technology offers a 31-band Lossless PEQ
Eight-channel THX AAA 788+ amplification delivers 8,000mW of power
Two ES9039SPro DACs support hi-res audio and are MQA-compatible
Includes numerous digital and analogue connections

FiiO K19 Desktop DAC and Headphone Amplifier, Silver Overview

View this description in German

The FiiO K19 Desktop DAC and Headphone Amplifier features DEL (Dual-Engine Limiter) technology, allowing for a 31-band high-precision lossless PEQ so you can customise the sound of your desktop setup. An eight-channel THX AAA 788+ amplifier provides a robust 8,000mW per channel, while the dual ES9039SPro flagship DACs deliver 32-bit/768 kHz audio in stunning clarity. The K19 also boasts a wide range of inputs, including RCA, HDMI ARC and Bluetooth, catering to both modern and traditional listening habits.

Product Ref: 299168

Full Description

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DEL Technology

The DEL (Dual-Engine Limiter) technology helps minimise distortion and, thanks to proprietary algorithms, enables access to audio effects such as Dynamic Range Compression, and Dynamic Range Enhancement. This technology also includes a precision PEQ to offer extensive customisation with 31 adjustable bands, each adjustable from +12 to -24 dB. This feature is perfect for audiophiles wanting to fine-tune their audio outputs to their precise preferences.

High-Quality DACs

The two ES9039SPro DAC chips feature the latest fourth generation Hyperstream architecture that can deliver PCM data up to 32-bit/768kHz and DSD up to DSD512. This setup separates audio channels to help maintain impeccable sound quality with ultra-low distortion and ultra-high dynamic range. These DACs are also capable of MQA rendering, allowing for stunning audio quality that matches a song’s studio master recordings.

Powerful Amplifier

Boasting an impressive power output of 8,000mW, the THX AAA 88+ amplifier chipset delivers an excellent sound through 4.4 and 6.5mm headphone outputs. Its fully balanced four-channel design maximises audio fidelity, reduces crosstalk between channels, and allows for great power efficiency. With these high-end audio features, the K19 provides immersive listening to both entry-level and high-end headphones.

High-Fidelity DSP Processing

The inclusion of an ADI ADSP-21565 DSP chip with SHARC+ core enhances the K19’s audio processing capabilities. It supports complex audio processing tasks while maintaining the integrity of high-resolution signals, ensuring efficient and high-fidelity sound reproduction. There are also two Ultra-Low Phase Noise Crystal Oscillators that enable exceptional signal reproduction.

Varied Connectivity

With broad input/output options, the K19 will act as the focal point of your audio system. The USB, RCA, optical, coaxial, and HDMI ARC connections will let you enjoy immersive headphone listening from your PC, games console, Blu-ray player, and more. The K19 even includes Bluetooth, so you can wirelessly stream your favourite music in AptX Adaptive and LDAC codecs.

Shock-Proof Design

The unibody diecast aluminium chassis offers great shock resistance and firm rigidity, enabling optimal stability on your desktop. Built for versatility, the K19 can be positioned both horizontally and vertically to suit the layout of your setup. The body is also carefully polished using a multi-axis CNC machining process, giving this unit a rich look.

Features

DEL technology with DRC and DRE audio technologies
31-band highly precise PEQ for extensive sound customisation
Dual eight-channel ES9039SPro DAC chips ensure unmatched sound resolution
Support for MQA audio delivers a studio-like sound output
8,000mW per channel from THX AAA 88+ amplifier a wide range of headphones and IEMs
ADI ADSP-21565 DSP chip with SHARC+ core for efficient, high-fidelity audio processing
Diverse range of inputs/outputs allows for broad connectivity
Robust diecast aluminium chassis provides a durable and stable foundation
Sleek, design fits seamlessly into professional or home audio environments

What's in the Box?

FiiO K19 DAC and Headphone Amplifier
AC power cord
Type-C to USB-A adapter
6.35mm adapter
Stand (colour matching the unit)
Vertical headphone stand support
Feet stand for horizontal use
Screwdriver and screws
USB 2.0 data cable
Dual Type-C data cable
3.5mm audio cable
Infrared Remote Control
Quick Start Guide

Specifications

General

Name/Model No.	K19
Hardware solution	DAC: 2 x ES9039SPRO USB: XMOS XU316 Bluetooth decoding: QCC5125 AMP: B7W+THX788+
Working mode	USB DAC mode Coaxial decoding mode Optical decoding mode HDMI decoding mode HDMI ARC decoding mode Bluetooth receiving mode
Colour	Black Silver
Weight	1800g
Dimensions (W x H x D)	205 x 38.7 x 252mm
Volume control type	Knob Remote control
MQA	Support MQA global decoding
Drive-free mode	Supported
Power supply	Support AC 100-240V 50/60Hz; DC 15V/≥3A (choose one of the two)
Bluetooth reception (5.1)	SBC AAC AptX AptX LL AptX HD AptX Adaptive LDAC
Gain	Ultra high gain Super high gain High gain Medium gain Low gain
Display	1.30-inch TFT (240x240) fully laminated screen
Display status indication	Volume Gain Output mode Working mode Transmission format Sampling rate EQ, etc
Bluetooth format supported	Supported
Sample rate indication	Supported
FIIO Control	Supported
Firmware upgrade	System firmware: upgrade through front panel USB interface XMOS firmware: upgrade via front or rear panel USB interface Bluetooth firmware: Upgrade via FIIO Control
Remote control	Supports infrared remote control (only the delivered remote control is supported)
Maximum supported sampling rate	USB decoding: supports up to 768kHz/32bit, DSD512 (Native) Coaxial input decoding: supports up to 192kHz/24bit, DSD64 Optical input decoding: supports up to 96kHz/24bit Coaxial output: supports up to 192kHz/24bit, DSD64 Optical fiber output: supports up to 192kHz/24bit HDMI output: supports up to 192kHz/24bit HDMI ARC decoding: supports 44.1/48kHz
Adaptation impedance	PO: 8-1500 BAL: 8-3500
Product Code	K19 Silver

Buttons and Interfaces

Buttons	Encoder knob (1 x volume knob with button + 1 x menu knob with button)
USB interface	Type-C USB (2 x data transmission interface + 1 x RS232 DSP adjustment interface)
DC power input interface	Φ6.2mm DC socket
Toggle Switches	1 x DC power supply and AC power supply selector switch 1 x Ground selector switch
Digital optical input interface	Fiber optic socket
Digital coaxial input interface	RCA socket
Digital optical output interface	Fiber optic socket
Digital coaxial output interface	RCA socket
Balanced output interface	1 x Standard 4.4mm socket 1 x XLR4 balanced socket
Headphone output interface	Standard 6.35mm socket
Balanced line output interface	XLR3 balanced socket
Single-ended line output interface	2 x RCA socket
HDMI Interface	1 x HDMI IN interface 1 x HDMI OUT(ARC) interface
Trigger interface	1 x Standard 3.5mm headphone jack (TRIGGER IN interface + 1 x TRIGGER OUT interface)

Audio Parameters (6.35mm headphone output, USB DAC/Coaxial decoding/Optical decoding, Ultra high gain mode)

Output power 1	L+R≥400mW+400mW (16Ω, THD+N <1 )
Output power 2	L+R≥230mW+230mW (32Ω, THD+N <1 )
Output power 3	L+R≥270mW+270mW (300Ω, THD+N <1 )
Noise floor	<3.5µV (A-weighted)
Frequency response	20Hz-20kHz: Attenuation <0.2dB 20Hz 80kHz: Attenuation?3dB
Output impedance	Less than 0.6Ω (32Ω)
Crosstalk	>75dB (1kHz@32Ω)
THD+N	Less than 0.0003 (1kHz@4dB@32Ω)
SNR	>127dB (A-weighted)
Peak output voltage	>22.5Vp-p

Audio Parameters (6.35mm headphone output, USB DAC/Coaxial decoding/Optical decoding, Super high gain mode)

Output power 1	L+R≥2400mW+2400mW?16Ω, THD+N?1 )
Output power 2	L+R≥1250mW+1250mW?32Ω, THD+N?1 )
Output power 3	L+R≥135mW+135mW?300Ω, THD+N?1 )
Noise floor	<3.5μV (A-weighted)
Frequency response	20Hz-20kHz: Attenuation <0.2dB 20Hz-80kHz: Attenuation?3dB
Output impedance	Less than 0.6Ω?32Ω?
Crosstalk	≥75dB (1kHz@32Ω)
THD+N	Less than 0.0003 (1kHz/-4dB@32Ω)
SNR	≥127dB (A-weighted)
Peak output voltage	?17.5Vp-p

Audio Parameters (4.4mm/XLR output, USB DAC/Coaxial decoding/Optical decoding, Ultra high gain mode)

Output power 1	L+R≥400mW+400mW (16Ω, THD+N <1 )
Output power 2	L+R≥800mW+800mW (32Ω, THD+N <1 )
Output power 3	L+R≥110mW+110mW (300Ω, THD+N <1 )
Noise floor	<6µV (A-weighted)
Frequency response	20Hz-20kHz: Attenuation <0.2dB 20Hz 80kHz: Attenuation?3dB
Output impedance	Less than 0.8Ω (32Ω)
Crosstalk	>120dB (1kHz@32Ω)
THD+N	Less than 0.0002 (1kHz@4dB@32Ω)
SNR	>128dB (A-weighted)
Peak output voltage	>4.5Vp-p

Audio Parameters (4.4mm/XLR output, USB DAC/Coaxial decoding/Optical decoding, Super high gain mode)

Output power 1	L+R≥400mW+400mW (16Ω, THD+N <1 )
Output power 2	L+R≥500mW+500mW (32Ω, THD+N <1 )
Output power 3	L+R≥550mW+550mW (300Ω, THD+N <1 )
Noise floor	<6µV (A-weighted)
Frequency response	20Hz-20kHz: Attenuation <0.2dB 20Hz 80kHz: Attenuation?3dB
Output impedance	Less than 0.8Ω (32Ω)
Crosstalk	>120dB (1kHz@32Ω)
THD+N	Less than 0.0003 (1kHz@4dB@32Ω)
SNR	>126dB (A-weighted)
Peak output voltage	>3.5Vp-p

Single-Ended Line Output Performance Parameters (RCA output, USB DAC/Coaxial decoding/Optical decoding)

THD+N	122dB (A-weighted)
Crosstalk	>110dB (1kHz@10kΩ)
Noise floor	<1.6µV (A-weighted)
Frequency response	20Hz-20kHz: Attenuation <0.1dB
Line output level	2.5Vrms (1kHz@10kΩ)

Balanced Line Output Performance Parameters (XLR3, USB DAC/Coaxial decoding/Optical decoding)

THD+N	< 0.00025 (1kHz/0dB@10kΩ)
SNR	≥128dB (A-weighted)
Crosstalk	≥120dB (1kHz@10kΩ)
Noise floor	<2.0µV (A-weighted)
Frequency response	20Hz-20kHz: Attenuation <0.1dB[-] 20Hz-80kHz: Attenuation <3dB
Line output level	4.8Vrms (1kHz@10kΩ)

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