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Pioneer SA-9800

Integrated Stereo Amplifier (1976-81)

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Pioneer SA-9800


The Pioneer SA-9800 has the impressive feature which is the NSA (non switching amplifier), created specially by Pioneer.

This is a type of amplifier that adopts the merits of both class A and class B amplifiers, and it excels in keeping down the heat loss and allows the transistors to operate all the time in the active region.

For this reason, a high output power with a very low distortion factor is yielded all the way up to the high frequencies.


Power output: 100 watts per channel into 8Ω (stereo)

Frequency response: 5Hz to 100kHz

Total harmonic distortion: 0.005%

Damping factor: 55

Input sensitivity: 0.1mV (MC), 2.5mV (MM), 150mV (line)

Signal to noise ratio: 72dB (MC), 90dB (MM), 110dB (line)

Output: 150mV (line), 1V (Pre out)

Semiconductors: 3 x IC, 6 x FET, 73 x transistors, 36 x diodes

Dimensions: 453 x 155 x 425mm

Weight: 18.4kg

Year: 1980


HG service additional   English -

instruction/owners manual   English - Herbman1975

service manual   English -

SG service additional   English -

Related Catalogues

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Stereo Components

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re: SA-9800

I'm looking for a function control switch and a speaker control knob ..

jairmaz's picture

re: SA-9800

Many thanks for yours help from Colombia

Pioneer SA-9800

thnks !!!!

from argentina !


plz send me a sa 9800 circuit diagram



Pioneer SA9800


I am classic Audio Gear collector. I bought Pioneer SA9800 in faulty condition found one channel completely gone bad on power amp side. I hope to fix it with the help of Service manual on hifi engine. Don't know if required spares/components will be available!

Thank you,

pioneer 9800

do you still have it if you didnt fix it im looking for the light meters mine quit will you sale me one if you have one or do you know someone who does thaks dave

Pioneer SA 9800 replacement potentiometer

Does anyone know where I can get the volume control for the sa 9800 amp, part number acw 119? Alternatively of a supplier that will do a replacement dual ganged pot? I believe that there is an extra 'tap' for the loudness circuit????


volume control for sa9800


re: volume control for sa9800

This appears to be a common problem with this unit.
I have a customer who has two of these units with the same issue.
In looking on the audio repair forums and vintage parts suppliers, I see many requests for this part.
If you could please, let me know if you can source this part. I would like to find something as close to OEM as I can.

Thank you,
Steven M.

re: volume control for sa9800

I'm still looking for these Alps 4-pin audio taper pots.

re: volume control for sa9800

Consider removing the control and disassembling the housing. With the help of 100% deoxit and a bit of added tension on the wiper, these pots can be saved.

This website is not affiliated with or sponsored by Pioneer. To purchase SA-9800 spares or accessories, please contact the company via their website or visit an authorised retailer.