The Sanyo DCA-650 is an integrated amplifier manufactured by Sanyo from 1973 to 1976. This model features a silver aluminum front panel complemented by wooden side panels. It has a compact design with dimensions of 420 mm in width, 130 mm in height, and 330 mm in depth, weighing 10.2 kg. The amplifier is capable of delivering a continuous power output of 43 watts per channel at 8 Ohms with a total harmonic distortion of just 0.1%. It supports a range of inputs including two phono inputs, a microphone, tuner, and two auxiliary (AUX) inputs, providing versatility for various audio sources. The DCA-650 is equipped with multiple output options such as tape record outputs and a pre-out for additional connection possibilities. One of its special features includes a microphone mixer and the ability to separate the pre- and power stages through the Main In/Pre Out ports. Additionally, the frequency response ranges from 5 Hz to 100 kHz, ensuring a wide audio range, while the signal-to-noise ratio stands at 70 dB for mic and phono inputs, and 90 dB for high-level inputs. Tone control options allow for bass and treble adjustments of ±10 dB, enabling fine-tuning of sound preferences. Overall, the DCA-650 stands out for its solid construction and a good balance of power and quality.