• Pro-Ject: Stereo Box S Amplifier
  • Pro-Ject: Stereo Box S Amplifier
  • Pro-Ject: Stereo Box S Amplifier
  • Pro-Ject: Stereo Box S Amplifier back

Stereo Box S Amplifier

↳ compact, integrated stereo amp

Silver $299.00 Stock Email
Black 3 Left! $299.00
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  • compact, integrated stereo amplifier
  • 30 watts per channel
  • Bi-Phase PWM (Pulse-Width Modulation) digital amplifier circuit
  • shielded metal chassis
  • gold plated RCA inputs
  • a great match for the Pro-Ject Speaker Box 5


Compact integrated stereo amplifier from Pro-Ject. The Stereo Box S achieves both a sound quality and SPL output that is impressive for its small size. Designed around a Bi-Phase PWM (Pulse-Width Modulation) digital amplifier circuit, the Stereo Box S achieves a remarkable 80% operational efficiency and a highly dynamic 30 watts per channel output into 4 ohms. The shielded metal chassis protects the circuitry from vibration and electromagnetic interference for the highest fidelity possible. Works great with the Pro-Ject Speaker Box 5.


  • Output Power: 2 x 20W / 30W @ 8 Ohm / 4 Ohm (both channels driven)
  • Frequency Response: 5Hz - 20kHz (+ 0dB, - 0.5dB)
  • Channel Separation: > 40dB @ 20kHz
  • Signal to Noise Ratio: > -100dB (IEC -A)
  • Line Level Inputs: 2x RCA Jacks
  • Input Impedance: 20k ohms
  • Record Out: 3.5mm Jack Plug
  • Power Supply: 20V / 3A DC (peak 7A DC)
  • Max Power Surge: 20V / 3A DC
  • Dimensions (WHD): 4.1 x 1.4 x 4.8 in.
  • Weight: 1.6lbs.

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