


Pro-Ject Amp Box S3 Amplifier
Introducing the Pro-Ject Amp Box S3, a micro audiophile stereo power amplifier designed to deliver powerful, room-filling sound to any loudspeaker. With its ultra-compact design and advanced circuitry, the Amp Box S3 achieves lower distortion and a better signal-to-noise ratio, bringing rich, musical sound with an analog warmth to your living space.
Key Features:
- NEW PCB Concept & Sophisticated Topology: The redesigned circuit board minimizes distortion and enhances the signal-to-noise ratio for superior audio performance.
- Ultra-Compact & Audiophile Design: Its small footprint makes it an ideal choice for desktop nearfield monitor speakers or any setup where space is limited.
- Advanced Amplifier Module: Engineered to emulate the sound characteristics of tube amplifiers, the Amp Box S3 delivers a rich and musical sound with a touch of analog warmth.
Specifications:
| Specification | Details |
|---|---|
| Power Output | 2 x 23 W / 40 W at 8 ohms / 4 ohms |
| Peak Power | 2 x 50 W at 4 ohms |
| Frequency Response | 20Hz - 20kHz (-0.7dB / 4 ohms) |
| Channel Separation | > -68 dB @ 20kHz |
| Signal-to-Noise Ratio | 87dBV (100dBV-‘A‘ weighted)/4 ohms |
| Total Harmonic Distortion (THD) | < 0.02% @ 10W / 4 ohms |
| Gain | 31 dB |
| Input | 1 pair RCA sockets |
| Input Impedance | 25 kohm |
| Speaker Sockets | 4mm Ø Banana, spades, pins, or bare wire |
| Trigger | 12V DC In & Out, 2-pole jack socket Ø 2.5mm |
| Power Supply | 20V/3A DC (universal power supply) |
| Dimensions (W x H x D) | 103 x 36 x 118mm |
| Weight | 385g without power supply |
The Pro-Ject Amp Box S3 is designed and produced in Europe, available in both black and silver finishes, making it a versatile and high-quality addition to any audio setup.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Introducing the Pro-Ject Amp Box S3, a micro audiophile stereo power amplifier designed to deliver powerful, room-filling sound to any loudspeaker. With its ultra-compact design and advanced circuitry, the Amp Box S3 achieves lower distortion and a better signal-to-noise ratio, bringing rich, musical sound with an analog warmth to your living space.
Key Features:
- NEW PCB Concept & Sophisticated Topology: The redesigned circuit board minimizes distortion and enhances the signal-to-noise ratio for superior audio performance.
- Ultra-Compact & Audiophile Design: Its small footprint makes it an ideal choice for desktop nearfield monitor speakers or any setup where space is limited.
- Advanced Amplifier Module: Engineered to emulate the sound characteristics of tube amplifiers, the Amp Box S3 delivers a rich and musical sound with a touch of analog warmth.
Specifications:
| Specification | Details |
|---|---|
| Power Output | 2 x 23 W / 40 W at 8 ohms / 4 ohms |
| Peak Power | 2 x 50 W at 4 ohms |
| Frequency Response | 20Hz - 20kHz (-0.7dB / 4 ohms) |
| Channel Separation | > -68 dB @ 20kHz |
| Signal-to-Noise Ratio | 87dBV (100dBV-‘A‘ weighted)/4 ohms |
| Total Harmonic Distortion (THD) | < 0.02% @ 10W / 4 ohms |
| Gain | 31 dB |
| Input | 1 pair RCA sockets |
| Input Impedance | 25 kohm |
| Speaker Sockets | 4mm Ø Banana, spades, pins, or bare wire |
| Trigger | 12V DC In & Out, 2-pole jack socket Ø 2.5mm |
| Power Supply | 20V/3A DC (universal power supply) |
| Dimensions (W x H x D) | 103 x 36 x 118mm |
| Weight | 385g without power supply |
The Pro-Ject Amp Box S3 is designed and produced in Europe, available in both black and silver finishes, making it a versatile and high-quality addition to any audio setup.






















