Otherwise, the DEH-P640 and DEH-P650 sport the same basic features, including a MOSFET 50 x 4 amplification circuit.
The DEH-P650's Multi-Colour Organic EL display provides it with an easy-to-use and easy-to-read interface that is viewable from nearly any angle and in any lighting condition: even direct sunlight. Its Supertuner IIID digital radio tuner provides the DEH-P650 with unrivaled radio reception by combining the best aspects of digital and analog radio tuners. Additionally, the DEH-P650's MOSFET 50 x 4 amplification circuit provides superior power with minimal distortion.