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.

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.

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

Related & System Matches

• Pro-Ject RPM, Xtension, and Signature line turntables
• Analog front ends where lower noise and stronger power stability are a priority
• Phono stages and system upgrades intended to extract more performance from a serious vinyl setup