Pro-Ject Power Box S3 Phono Power Supply Wired Earphones An innovative design feature developed

An innovative design feature developed by Rinaro is the Isomagnetic® earpad attachment

The idea was to create a technical but elegant shell with the aesthetics of an open back headphone

Display Technology

107 dB SPL/mW

The innovations of acoustically shaping micro-chambers

Pro-Ject Power Box S3 Phono Power Supply Wired Earphones An innovative design feature developed2 Year Local Warranty. Any mention of "us," "we," "our," etc is by Pro Ject, not AV One. Clean power for your phono setup Double power for turntable and phono preamp! Power Box S3 Phono is a very efficient and flexible power filter for your turntable and phono preamp. By placing the power supply outside of the main component, potential noise and audio signal contamination is avoided. Clean energy contributes significantly to the sound quality. Its two