Pro-Ject Head Box S3 B Headphone Amplifier, Silver Overview
The Pro-Ject Head Box S3 B is designed for listeners who want a compact, high-quality headphone amp for desktop and hi-fi use. Its fully balanced signal path helps reduce background noise and improve channel separation, so you hear more detail and a clearer sense of space in your music. This is especially noticeable with balanced headphones, where subtle textures and positioning feel more defined and controlled.
It supports both balanced and single-ended headphones, making it easy to slot into an existing setup without compromise. RCA and XLR inputs give you flexibility when pairing with DACs or other hi-fi components, while the full aluminium case adds stability and shields the electronics for consistent performance. Made in Europe, the Head Box S3 B focuses on careful engineering and long-term reliability, giving you a headphone amplifier that’s built to last and comfortable to use every day.
Product Ref: 363998
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Specifications
| Maximum Power Output | 480 mW @ 8 Ω / 680 mW @ 16 Ω / 820 mW @ 32 Ω / 320 mW @ 300 Ω |
|---|---|
| Headphone Outputs | 3.5 mm, 6.3 mm, 4.4 mm balanced, 4-pin balanced XLR |
| Signal-to-Noise Ratio (SNR) | >115 dB (A-weighted, 1 kHz) |
| Total Harmonic Distortion (THD) | <0.002% (1 kHz @ 500 mV input) |
| Crosstalk | < -81 dB (10 kHz) |
| Gain | 15 dB (RCA input) / 9 dB (XLR input) |
| Frequency Response | < -0.25 dB (20 Hz – 20 kHz) |
| Analogue Inputs | 1 pair RCA (Cinch), 1 pair XLR |
| Analogue Loop Outputs | 1 pair RCA |
| Supported Headphone Impedance | Minimum 8 Ω |
| Power Supply | 18 V / 1 A DC, 110–240 V, 50/60 Hz |
| Standby Power Consumption | <0.5 W |
| Dimensions (W x H x D) | 206 x 55 x 153 mm (170 mm incl. sockets) |
| Weight | 950 g (without power supply) |
| Product Code | PHEADBOXS3BBS |
| EAN | 9120137901306 |
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