Pioneer SA-606 amplifier The Pioneer SA-606 in a stereo integrated amplifier which supplies a continuous power of 40 watts per channel. The unit has discrete power supply sections for the sections class A and class B and a differential amplifier with power mirror and connected with Darlington directly linked OCL-output with constant current strength. Other features include the outputs for two sets of speakers, click-stop buttons, loudness-contour, separate watt meters with LED peak indicators for each channel and advanced electronic security. Specifications Output power: 40 watts per channel in 8Ω (stereo). Frequency range: 20Hz to 40kHz Total harmonic distortion: 0.05% Damping factor: 30 Input sensitivity: 2.5 mV (MM), 150mV (line) Signal / noise ratio: 78dB (MM), 95dB (line) Output: 150mV (line) Semiconductors: 2 x IC, 25 x transistors, 27 x diodes Size: 450 x 148 x 263 mm Weight: 8.2 kg Year: 1978 Lighting needs some attention Has signs of wear. Very good operation for the age, sounds nice and full.