Pro-Ject Pre Box DS Preamplifier

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  • Regular price $499.00

Pro-Ject Pre Box DS Preamplifier

The Pre Box DS is a pure single-ended Class A output stereo preamplifier designed to give audiophile sound quality and connectivity in a small compact package. The preamp circuitry is housed in a heavily shielded metal chassis that effectively rejects vibration and electromagnetic noise reducing the noise floor to inaudible levels. With four relay switched line-level inputs and separate preamp, record and subwoofer outputs, the Pre Box DS can accommodate a multi source audio system easily. Additionally, the volume control is relay controlled providing accurate adjustment of gain in 64 one-decibel steps. An extremely low output impedance allows for long cable runs without loss or high-frequency roll-off. 12V trigger switching is provided allowing other components to be turned on/off by the Pre Box DS. A large and bright display reads out volume level and input source selection. An IR remote is supplied that can control all the units functions.


Frequency Response
20Hz - 20kHz (-0.3dB/+0.1dB)
Noise Floor
> -95dB (A-Weighted)
< 0.0035%
1pr RCA Phono
Record and Subwoofer Out
RCA Jacks
Line-Level Inputs
4 pr. RCA Jacks
Input Impedance
10k ohm
12V DC Switching Voltage
Trigger Out
2-Pole Co-Axial 2.5mm Jack
Power Supply
18V / 500mA AC
Power Consumption
220mA AC <1W standby
Dimensions (WHD)
4.1 x 2.9 x 5.7 in., 103 x 72 x 144 mm
2.5lbs., 1,100g
Black or Silver