The NAD 117 is a stereo preamplifier that was designed to provide high-quality sound reproduction while offering various features aimed at audiophiles. This model is recognized for its solid build quality and user-friendly controls. The preamplifier includes multiple inputs, allowing users to connect various audio sources, such as CD players, turntables, and cassette decks. One of the notable specifications is its signal-to-noise ratio, which assures clean audio playback with minimal background noise. Additionally, the NAD 117 features tone controls, which allow the adjustment of bass and treble levels to suit individual listening preferences. The unit also has a headphone output, providing versatility for personal listening, and is compatible with different audio formats, enhancing its usability. The design typically showcases a minimalist aesthetic with easy-to-read indicators and robust knobs for volume and other controls.