The Pro-Ject Power Box DS3 Sources is a power supply unit designed to deliver clean and stable power to various audio components, enhancing their performance by reducing noise and interference. It is specifically crafted to power Pro-Ject audio devices but can also be used with other compatible electronics. The unit features multiple outputs, allowing users to connect and power several devices simultaneously. It employs a toroidal transformer, known for its efficiency and minimal magnetic interference. This design choice contributes to a more reliable power supply and improved overall sound quality. The Power Box DS3 Sources is constructed with high-quality materials, ensuring durability and longevity. It is compact and can fit easily into different audio setups without occupying significant space. The device also includes a soft-start feature, which helps protect connected components from voltage spikes during power-up. Specifications typically include a range of output voltages suitable for most audio devices, along with a total current output sufficient to power multiple devices without performance degradation. Its versatility and build quality make it a practical choice for anyone looking to optimize their audio system's power supply.