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Pioneer SA-606

Stereo Integrated Amplifier (1978-79)

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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


Related Catalogues

Hi-Fi Stereo

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Reviewed May 23rd, 2019 by Badnaughtyboy

Totally worth to have. It has a fantastic deep bass and very detailed wide stage sound. This little monster can handle any kind of speakers. Don't even need to mention it's look. Those analogue vu meters give you a great visual joy. Technically and visually a great vintage HiFi amplifier.

Reviewed Jul 06th, 2014 by ismile2uk

As a collector of amplifiers from this era for sometime, this amplifier holds a a great attraction for me cosmetically especially with moving coil power displays, and even more so as the bulbs blew, and I put a bright blue L.E.Ds in as replacements, its given a fresh modern but still a retro era look.

As with most amplifiers from this era, the sound is full bodied, and quite punchy, which can interfere with sonic sound quality.
Switching off the loudness cuts bass, so helps but you can leave the loudness switched on, and turn the bass down to your taste.

On playing modern dance music via cd from the aux, tuner inputs the bass can cause the amplifier to clip, you have two red L.E.Ds above the coil displays to give a warning, these will flicker if its about to clip.

Overall a great amplifier to own and look at, and sounds excellent with a variety of different speakers, and cd players. You can even upgrade the power lead as the amplifier has a 3 pin plug on the back, as most amplifiers have a hard wired lead coming out.

TOP TIP:clean the plug pins on the mains lead of oxidation with metal polish, helps with sound quality.



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

pioneer SA-606

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

re: pioneer SA-606

Think you will find this is a voltage regulator.


re: pioneer SA-606

That is actually a TRIAC and you can get this at Mouser. https://www.mouser.com/ProductDetail/576-L4004L3. (Triacs 400V 4A Sensing 3-3-3-3mA ) I just finished a restoration of a SA-606 and this works great without getting too warm. I didn't add a heat sink as it doesn't get that hot.


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 SA-606 spares or accessories, please contact the company via their website or visit an authorised retailer.