Pro-Ject Power Box S3 Phono Power Supply and Filter

Step Up to Filtered Power for Better Turntable and Preamp Sound

Upgrade your Pro-Ject gear by stepping up to an affordable and highly effective power supply upgrade. The Pro-Ject Power Box S3 Phono is a very efficient and flexible power supply and power filter for your Pro-Ject turntable and phono preamp.

Here is why this is such an effective upgrade. By separating the power supply from the main component, noise and signal contamination are avoided. And it is no secret that clean, steady power contributes significantly to the sound quality of audio gear. It's a difference you can clearly hear.

An Instant Upgrade for Turntables and Phono Preamps

The Power Box S3 Phono has two DC power outputs that are specifically engineered to power Pro-Ject turntables (15V DC only!) and phono preamps (18V).* If you have a compatible turntable and/or preamp, you are in for a listening treat when you upgrade to this sophisticated, filtered power supply.

Sophisticated DC power filtration allows your turntable and preamp to perform their best. Expect greater speed stability from your turntable and a lower noise floor from your phono preamp, amounting heightened clarity and resolution in analog playback. The metal enclosure of the chassis helps block RFI/EMI for greater signal purity.

Reduce Power Cord Tangle, Too

In addition to the sonic improvements, Power Box S3 Phono has another benefit that may not be as significant as the audio upgrade, but it is a nice plus. The Power Box also helps with cable/PSU management by eliminating the need for turntable and phono preamp wall-wart power supplies. One less power cord can make a welcome difference.

*Note: This product is not compatible with Pro-Ject X8, Xtension 9, Xtension 10, Xtension 12, RPM 5, RPM 9, RPM 10 nor Signature Model turntables. For these turntables we recommend Power Box RS2 Phono or Power Box RS Uni TT power supply upgrades.