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Pro-Ject Amp Box S2 Black Amplifier
Pro-Ject Amp Box S2 Black Amplifier 0
Pro-Ject Amp Box S2 Black Amplifier 1

Pro-Ject Amp Box S2 Black Amplifier

Model #: Amp Box S2-BL
At a Glance
The new Amp Box S2 offers one stereo RCA input and delivers powerful and room-filling sound to every loudspeaker. The aimed sound characteristics of this power amplifier was the one of tube power amplifiers, with their lush, rich and musical sound with an analogue touch of warmth.
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Get to know this product.

Amp Box S2 is ultra compact and allows for easiest placement in every listening room and can be turned on and off remotely via the trigger sockets. For Bi– or Tri-amplification you can use the trigger outputs to connect further power amplifiers. Amp Box S2 comes in a luxurious design with a stable housing made of aluminium/metal, which effectively protects against interferences and vibrations!


  • Ultra compact & audiophile
  • Advanced amplifier module
  • More power and further improved performance
  • Stereo input (RCA)
  • Isolated speaker sockets
  • Suitable for banana/spade/pin/bare wire
  • Trigger input
  • Trigger output for further Amp Box S2
  • Metal casing protects against vibration and interference
  • On/Off front-sided
  • Available in silver or black

*Black Color Only, Silver is for Visual Purposes Only.


Technical Information

Power Output2 x 23 W / 35 W at 8 ohms/4 ohms (both channels driven)
Frequency Response5 Hz - 20 kHz (+ 0.2 dB, - 0.2 dB)
Channel Separation>-55dB bei 20kHz
Noise Floor>-100dBA
THD<0.18% bei 10 W
Gain31 dB
Pre In1 pair RCA/phono sockets
Bypass OutputJack socket 3.5mm stereo
Input Sensitivity330 V
Input Impedance20 kohms
Speaker Connectors4 mm banana plugs, spades connectors or naked wire
Trigger12V DC switching voltage, 2-pole co-axial, 2.5mm co-axial jack
Outboard Power Supply20V/3A DC (peak 7A DC), suitable for your country's mains supply
Power Consumption3A DC, <1W in standby
Dimensions W x H x D with sockets103 x 37 x 136 mm
Weight385 g without power supply

Misc. Specs

Depth (in.)4.65
Height (in.)1.42
Width (in.)4.06
Analog Audio(RCA) Input1
Color Finish NameBlack
Product Weight (lbs.)1.4800
WarningProposition 65 Warning for California Residents