Pro-Ject Power Box RS2 Sources – Clean Power Supply for Audiophile Performance
More Sound Quality Through High-Quality Power Supply
The power supply is an often underestimated yet crucial component of a high-quality hi-fi chain. With the Pro-Ject Power Box RS2 Sources, Pro-Ject offers a specially developed linear power supply designed to provide compatible source devices with particularly clean and stabilized power. Compared to common switching power supplies, a linear power supply operates with significantly less interference and reduces high-frequency influences that can negatively affect sensitive audio components.
Especially digital source devices such as streamers, DACs, CD transports, or phono preamplifiers benefit from an optimized power supply. The Power Box RS2 Sources delivers precisely regulated voltage with minimal ripple, thus ensuring better operating conditions for the connected electronics – an advantage often noticeable in a quieter soundstage, more detailed resolution, and improved spatial imaging.
Linear Power Supply Instead of Switching Power Supply - Why a Better Power Supply Can Be Audible
Many audio components are supplied ex works with compact switching power supplies. These are efficient and space-saving but generate high-frequency interference and do not always operate with the ideal quietness and stability required for high-quality audio applications.
The Pro-Ject Power Box RS2 Sources therefore relies on a classic linear power supply with:
- Audio-optimized toroidal transformer
- Copper foil shielding against interference
- Low-ESR filter capacitors
- High total capacitance for stable voltage reserves
- Precise voltage regulation with very low ripple
The result is a particularly clean DC voltage that allows connected audio components to operate under optimal conditions.
Powering Up to Four Devices Simultaneously
A particular advantage of the Power Box RS2 Sources lies in its versatility. The power supply can power up to four compatible Pro-Ject RS or RS2 source devices simultaneously. This replaces multiple individual power supplies and at the same time ensures a central, high-quality power supply within the system.
This not only brings sonic benefits but also reduces:
- Cable clutter in the rack
- Wall warts in power strips
- Possible sources of interference from inferior power supplies
- Heat generation of individual switching power supplies
Especially in high-quality hi-fi systems, this creates more order and a cleaner overall installation.
Elaborate Design for Audiophile Demands - High-Quality Technology Inside
The design of the Power Box RS2 Sources is geared towards maximum power quality. At its core is a specially tuned toroidal transformer with copper shielding, which reduces interference and creates a stable basis for voltage conditioning.
Generous filter capacitance with high-quality low-ESR capacitors ensures that voltage fluctuations are compensated and load peaks are reliably absorbed. The precisely regulated outputs deliver consistently clean voltage to the connected components.
Additional protective functions such as:
- Soft-start circuit
- Overvoltage protection
- Controlled power-on behavior
increase operational safety and protect connected devices.
Sonic Added Value in High-End Systems
A high-quality power supply does not replace better electronics – however, it enables existing components to unleash their full potential. Users often report the following with linear power supplies:
- Quieter background
- Finer detail resolution
- More precise dynamics
- Better spatial imaging
- Cleaner bass control
- Reduced digital harshness
Especially in high-resolution systems with streaming, DAC, or phono preamplifiers, this effect can be clearly perceptible.
High-Quality Housing in RS Design
The Power Box RS2 Sources fits perfectly into Pro-Ject's RS and RS2 series, both visually and technically. The solid full aluminum housing reduces mechanical and electrical interference and at the same time provides a high-quality feel.
Available in black or silver, the power supply seamlessly integrates into existing hi-fi systems.
Like many components in the RS series, the Power Box RS2 Sources is manufactured in Europe and is aimed at discerning music lovers who do not want to compromise on power supply.
The Pro-Ject Power Box RS2 Sources is far more than a simple power supply. It is a high-quality linear power supply for demanding Pro-Ject source devices and provides the technical basis for less interference and sonically optimized hi-fi reproduction. With the ability to power up to four devices simultaneously, audiophile circuit design, and high-quality workmanship, it is a valuable addition to ambitious hi-fi systems.
Technical data
| Feature | Details |
|---|---|
| Product Type | Linear power supply for source devices |
| Compatibility | For up to 4 Pro-Ject RS / RS2 source devices (20V) |
| Outputs | 4 x 20V DC |
| Output Current | 4 x 2A |
| Output Voltage Tolerance | ±0.5% |
| Ripple | max. 6mV pp |
| Power Supply Type | Linear power supply (not switching power supply) |
| Transformer | Audio-optimized toroidal transformer |
| Shielding | Main isolation transformer with copper foil shielding |
| Filter Capacitance | 10,000 µF |
| Capacitors | Low-ESR capacitors |
| Protection Features | Overvoltage protection, soft-start system (no inrush current) |
| Chassis | Full aluminum, low interference |
| Input Voltage | 115V / 230V AC |
| Dimensions (W x D x H) | 206 x 209 x 71 mm |
| Weight | 3,550 g |
| Scope of Delivery | 4 x Mini-XLR to Mini-XLR connection cables |
| Color Options | Black or Silver |
| Manufacturing | Handmade in Europe |