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Pioneer SA-606

Stereo Integrated Amplifier (1978-1979)

Pioneer SA-606


The Pioneer SA-606 is a stereo integrated amplifier giving a continuous power output of 40 watts per channel.

The unit has discrete power supply sections for the class A and class B sections, and a current-mirror loaded differential amplifier with constant current loaded Darlington connected all-stage direct-coupled OCL output.

Other features include outputs for two sets of speakers, click stop tone controls, loudness contour, separate watts meters with LED peak indicators for each channel, and advanced electronic protection.


Power output: 40 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 40kHz

Total harmonic distortion: 0.05%

Damping factor: 30

Input sensitivity: 2.5mV (MM), 150mV (line)

Signal to noise ratio: 78dB (MM), 95dB (line)

Output: 150mV (line)

Semiconductors: 2 x IC, 25 x transistors, 27 x diodes

Dimensions: 450 x 148 x 263mm

Weight: 8.2kg

Year: 1978


service manual (en)


hi-fi stereo

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Pioneer amplifiers


pioneer SA-606

hi 2 everyone.this is olivier from mauritius.i am a technician and i like old model integrated amplifiers!i have just put hands on one pioneer sa 606 and i am trying to repair it!i am looking for any circuit diagrams concerning this amplifier!can someone help me please!thanks

help me

I can not find a particular piece of pioneer if you can help me I miss a THYRISTOR shown in the picture down


I Googled your P/N and came up with a long-discontinued Mitsubishi 3-quadrant trac device rated 3A-400V. My guess that a 2N6075B will work for you but you might double-check your P/N. I never heard of thyristors in any audio equipment. They're used in incandescent-lamp dimmers, heating controls and the like and, as such, produce a copious amont of electrical noise. Best Regards, Dave.


You might try ABC Electronics (surplus) in downtown Minneapolis, MN. I don't think they have a web site but they do have a phone number and you can find them with a google search and they are very helpful.

This website is not affiliated with or sponsored by Pioneer. To purchase a SA-606 please contact the company via their website or visit an authorised retailer.