The Nakamichi 620 is a cassette tape deck that was popular in the late 1970s and early 1980s. It features dual capstan transport, which helps in maintaining better tape tension and stability during playback and recording. The device supports both normal and metal tapes, enhancing sound quality across different tape types. Users have praised its ability to produce clear and detailed audio with a dynamic range that captures nuances in music well. The 620 includes a set of useful features such as bias and level controls, allowing users to fine-tune their recordings. It also has automatic calibration for optimal performance based on the tape type used. Its design boasts a solid build quality with a straightforward, functional aesthetic. The model is equipped with a digital LED level indicator for easy monitoring of recording levels. The transport mechanism ensures smooth operation, contributing to the overall durability of the tape deck. Specifications include a frequency response typically ranging from 20 Hz to 20 kHz and signal-to-noise ratios that are favorable for its class. It generally outputs a power of around 0.5% total harmonic distortion at normal levels. The Nakamichi 620 continues to be appreciated by audio enthusiasts for its classic engineering and reliable performance.
