The Akai AM-57 is a stereo integrated amplifier manufactured by Akai. It was introduced in the early 1980s and is part of Akai's AM series of amplifiers. The AM-57 is known for its solid build quality and reliable performance. It has a power output of around 30 watts per channel and features various input and output options including phono, tape, and auxiliary. The amplifier is designed to enhance the audio quality of connected speakers and audio sources.