Pro-Ject Power Box RS Uni 4-Way Linear Power Supply

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  • Regular price $999.00

Pro-Ject Power Box RS Uni 4-Way Linear Power Supply

A clean power upgrade for the best sound from Pro-Ject RS and RS2 components

Significantly enhance the sound quality of the following Pro-Ject components: CD Box RS, DAC Box RS, Head Box RS, Pre Box RS, Pre Box RS Digital, Stream Box RS, Pre Box RS2 Digital, DAC Box RS2, CD Box RS2 T, Phono Box RS2.

Power Box RS Uni 4-way will power four components. Use the Power Box RS Uni 1-way if you need to power only one component.

A linear power supply consists of a massive toroidal transformer with shielding between primary and secondary winding, which acts as an isolating transformer and avoids interference from mains into the audio component. The built-in transformer has a much higher power reserve compared to the standard power adapter. It has very low output impedance and in combination with large filtration capability it can easily manage all power needs. Soundstaging, darkness of backgrounds, and micro-detail resolution will improve strongly.

The unit comes with the required power cable.


  • Purest and cleanest power using non-switching power supply
  • Soft-start system avoids current inrush in primary winding
  • High-quality, audio-spec toroidal transformer
  • Main isolating transformer with copper foil shielding
  • Secondary voltage rectification with precise regulation
  • High filtration capacity (10,000 µF)
  • Low ESR capacitors
  • Low noise components with surge protection


Input:  AC 120 V/60 Hz IEC C15 connector

Output: 4 x 20 V / 3 A max

Filtration: 4 x 10,000 µF

Dimensions (WHD): 8.1" x 2.8" x 7.7" (201 x 72 x 195 mm)

Weight: 10.6 lb