Pro-Ject Power BoxRS Amp LinearPower

Pro-Ject Power Box RS Amp - Linear Power Supply

The Pro-Ject Power Box RS Amp is a premium linear power supply designed to deliver clean, stable power to Pro-Ject audio amplifiers, significantly enhancing audio performance with improved dynamics, bass response, and soundstage.

Key Features

• Compatible with Pro-Ject Audio Systems power amplifiers
• Replaces original switching power supplies for cleaner power delivery
• Nearly doubles amplifier power output when combined with Amp Box RS, Amp Box DS & Stereo Box RS (2x 200/120 watts at 4/8 ohms)
• Enhances sound quality with improved dynamics, bass response, and soundstage
• Works with Amp Box RS, Amp Box RS Mono, Stereo Box RS, Amp Box DS, and Amp Box DS Mono
• Large toroidal transformer with copper shielding reduces interference
• Very low output impedance ensures stable power delivery
• High filtration capacity with 40,000 µF low ESR capacitors
• Available in silver or black finish

Product Overview

This linear power supply features a large toroidal transformer with shielding between primary and secondary windings, acting as an isolation transformer to prevent mains interference from reaching the amplifier. Compared to standard power adapters, it offers a substantial power reserve and low output impedance for stable, clean power delivery. The Power Box RS Amp can power one stereo amplifier or two mono amplifiers simultaneously.

Extensive listening tests confirm that linear power supplies significantly improve the sound quality of digital amplifiers, a fact recognised by leading high-end manufacturers. The Power Box RS Amp provides a major sound upgrade at an affordable price. To avoid magnetic interference, do not stack the amplifier and Power Box RS Amp directly.

Specifications

Specification	Details
Input Voltage	AC 230V/50Hz IEC C15 connector (120V/60Hz US version available)
Output Voltage	Two outputs: 2 x 48V / 2.5A DC each
Filtration Capacity	40,000 µF (microfarads)
Output Voltage Ripple	7 mV
Power Consumption	600 watts max
Dimensions (W x H x D)	206 x 72 x 200 (220) mm (including sockets)
Weight	4.8 kg