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Pioneer SA-8100

Stereo Integrated Amplifier (1973-75)

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Pioneer SA-8100


The SA-8100 is Pioneer's big power integrated stereo amplifier.

It features a unique twin tone control system for versatile tonal adjustment, high and low subsonic filters and high stability, reliable pure complementary OCL power amplifier design, with differential amplifier at the first stage. Large electrolytic capacitors ensure stable operation.


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

Frequency response: 10Hz to 70kHz

Total harmonic distortion: 0.05%

Damping factor: 60

Input sensitivity: 2mV (mic), 2.5mV (MM), 150mV (line)

Signal to noise ratio: 70dB (mic), 80dB (MM), 90dB (line)

Output: 150mV (line), 30mV (DIN), 2V (Pre out)

Speaker load impedance: 4Ω to 16Ω

Semiconductors: 49 x transistors, 25 x diodes

Dimensions: 430 x 138 x 341mm

Weight: 12.1kg

Accessories: connecting cord, hex wrench, polishing cloth

Year: 1974


schematic   English -

instruction/owners manual   English -

service manual   English - Ivy Caudieus

diagrams   English - Biro

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Reviewed Jul 13th, 2015 by pjp

Excellent amplifier, used as a power amplifier preamp Sony TA55es.
Warm, accurate sound

Reviewed Jun 03rd, 2014 by MIL-Q

Internally built like a tank. Good quality PCB's. Nichicon caps on PCBs. Power supply: (2) caps ELNA 10,000 uf, 50V.
Interesting dual controls of both bass and treble boost using 9 and 5 position wafer switches selecting precision RC networks. Has, IMHO, some unneeded features; level set, for example.
Sound quality is excellent and it is a handsome looking unit. 45 wpc is more than ample.

Reviewed Apr 28th, 2014 by Paulmac

My SA-8100 has a slight volume difference between right and left. However, the balance control can take care of this. The Amp sounds warm but bright at the same time. Using Fluance towers which are somewhat bright by nature. So far, the amp sounds very good. Not as good as the Sansui AU 717 but to be fair, the 717 has been recapped. Like many of the mid 70s, the build quality is amazing compared to the stuff made today.



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