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Pro-Ject - Amp Box S Mono Power Amp

Pro Ject

  • $ 27900
  • Save $ 20

Pro-Ject Amp Box S Mono Power Amp

This compact mono power amplifier achieves both a sound quality and SPL output that belies its small size. Designed around a Bi-Phase PWM (Pulse-Width Modulation) digital amplifier circuit, the Amp Box achieves a remarkable 80% operational efficiency and a highly dynamic 60 watts output into 4 ohms. This combination of small size and efficiency makes the Amp Box Mono ideal in Bi or Tri-amplification system applications.

Additionally, a trigger signal can remotely switch the amplifier or amplifiers on/off and a Power-On cable is supplied for relaying on/off trigger action to additional units. The shielded metal chassis protects the circuitry from vibration and electromagnetic interference for the highest fidelity possible.


Power Output: 1 x 40W/60/80W at 8/4/2 ohms
Frequency Response: 5Hz - 20kHz (+0dB, -0.5dB)
Noise Floor: 1 x 40W/60/80W at 8/4/2 ohms
THD: < 0.05% at 10W
Gain: 22dB
Pre-In: 1 pr. RCA Jack
Pre-Out: 1 pr. RCA Jack
Input Sensitivity: 1V
Input Impedance: 47k ohms
Speaker Connectors: 4mm Banana Jacks, Spades or Bare Wire
Trigger: 12V DC Switching Voltage
Trigger In/Out: 2-Pole Co-Axial 2.5mm Jack
Power Supply: 20V / 3A DC (peak 7A DC)
Power Consumption: Standby < 1 Watt
Dimensions (WHD): 4.1" x 1.4" x 4.1"
Weight: 1.5 lbs.

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