Pioneer AM/FM stereo receiver model SX-3700. From 1980 - 1981. 45 watts per channel. Features, two tape in/outputs, one phono and aux input, FM muting, low filter and other features. This was the beginning of the digital age. Notice the tuner also features a digital readout along with the analog tuner, Also power meters are digital. One of the last receivers before pioneer did away with the analog tuner.