PRO-JECT AUDIO

Pro-Ject Power Box RS Uni 1-Way TT

Universal linear power supply for 15V DC turntables • specially developed for heavy-platter models • audio-grade toroidal transformer • 10,000 µF filtration • soft start system • silver or black finish

Linear Power Supply for 15V DC Turntables

Meet the Power Box RS Uni 1-Way TT

The Pro-Ject Power Box RS Uni 1-Way TT is a dedicated linear power supply engineered to elevate the performance of compatible 15V DC Pro-Ject turntables. Designed especially for models with heavier platters, it replaces a standard switch-mode adapter with a far more substantial power platform built around a shielded toroidal transformer, precise voltage regulation, and generous filtration capacity. The result is cleaner power delivery, lower interference, and a more refined analog presentation.

15V DC Turntables Linear Power Supply Heavy-Platter Ready Toroidal Transformer 10,000 µF Filtration

For serious analog listeners, upgrading the power supply can be one of the most effective ways to improve a turntable’s composure, silence, and low-level detail retrieval.

Highlights & Benefits

Specially developed for demanding turntables — Pro-Ject designed this model specifically for heavier-platter decks such as RPM, Xtension, and Signature line turntables.
Cleaner power than a standard adapter — the non-switching linear design is intended to reduce noise and interference reaching the turntable.
Audio-grade transformer design — a toroidal transformer with copper foil shielding helps isolate the turntable from mains-borne contamination.
Soft start protection — the integrated soft start system helps avoid current inrush in the primary winding.
High current capability — rated at 15V / 3A maximum, it offers substantially greater power reserve than a typical stock wall supply.
Performance-focused upgrade path — the Pro-Ject Power Box RS Uni 1-Way TT is an ideal step for listeners who want more stable, more sophisticated power behind a serious analog front end.

Technology & Design

Massive linear power architecture — unlike a compact switch-mode adapter, this unit uses a substantial linear supply topology with a much larger transformer and power reserve to better satisfy dynamic current demands.

Precise regulation and filtration — secondary voltage rectification is paired with precise regulation, 10,000 µF of filtration capacity, and low ESR capacitors for lower noise and stronger stability.

Engineered for lower interference — the transformer’s copper foil shielding and low-noise components with surge protection are part of a design aimed at preserving low-level analog information.

In a well-matched system, the Pro-Ject Power Box RS Uni 1-Way TT can contribute to darker backgrounds, stronger sound staging, and more apparent low-level detail from a compatible turntable.

FAQ — Power Box RS Uni 1-Way TT

What is this product designed to do?

It is a linear power supply upgrade for compatible Pro-Ject turntables that use a 15V DC supply voltage.

Is it only for heavy-platter turntables?

No. It was specially developed for heavy-platter models, but it is also compatible with other Pro-Ject turntables that use 15V DC power.

What makes it different from a standard adapter?

It uses a larger linear supply with a toroidal transformer, soft start system, precise regulation, and much higher filtration capacity for cleaner power delivery.

Does it include the connection cables?

Yes. Pro-Ject specifies that both the standard 3-pole connection cable and the connection cable from the power supply to the turntable are included.

Can it be used with Phono Box RS?

No. Pro-Ject specifically notes that it should not be used with Phono Box RS.

Why Buy From Us

Expert guidance on turntable compatibility and worthwhile analog upgrade paths
Help determining when a better power supply can improve overall system performance
Support from a specialty audio retailer that understands real-world vinyl system building
Trusted advice on matching Pro-Ject turntables, phono stages, and accessories for maximum performance

Power Box RS Uni 1-Way TT Specs

Product Type	Universal linear power supply
Application	For Pro-Ject 15V DC turntables
Input Voltage	AC 230V / 50Hz IEC C15 connector (120V / 60Hz US)
Output Voltage / Current	15V / 3A max.
Filtration Capacity	10,000 µF
Output Voltage Ripple Rejection	Better than 75 dB
Transformer Type	Audio-type toroidal transformer
Protection / Design Features	Soft start system, copper foil shielding, low ESR capacitors, surge protection
Available Finishes	Silver or black
Dimensions (W × H × D)	201 × 72 × 195 mm
Weight	4800 g

The Pro-Ject Power Box RS Uni 1-Way TT is a meaningful upgrade for compatible Pro-Ject turntables that benefit from cleaner, more stable, and more robust power delivery.

What’s in the Box

External Power Supply

Price

Collections

Pro-Ject Power Box RS2 Phono

Pro-Ject Power Box RS Uni 1-Way TT