The Pro-Ject Phono Box DS3 B is a high-quality phono preamplifier designed to amplify signals from a turntable to line level suitable for input into an amplifier or receiver. This model features adjustable gain settings to accommodate various cartridges, making it versatile for both moving magnet (MM) and moving coil (MC) cartridges. The DS3 B includes a precision RIAA equalization curve, ensuring accurate playback of vinyl records. Additionally, it boasts a low-noise design, which minimizes any potential hum or noise that could affect sound quality. The unit is housed in a solid chassis that provides improved isolation from vibrations, further enhancing audio fidelity. It offers multiple outputs, allowing for flexible connection options. Other notable specifications include a frequency response of 20 Hz to 20 kHz, a signal-to-noise ratio of 85 dB, and a total harmonic distortion (THD) of less than 0.01%. The unit also features a power supply that ensures stable operation and minimizes interference. Its aesthetic design complements various audio setups, with a variety of finish options available.