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Pioneer SA-7800

Stereo Integrated Amplifier (1979-81)

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Pioneer SA-7800

Description

The remarkable non-switching amplifier configuration in the power amp of the Pioneer SA-7800 has made it possible to live up to each of the 12 key points covered in the Magni Wide policy.

They add up to the elimination of all that stands in the way of truly excellent fidelity in actual musical reproduction.

Specifications

Power output: 65 watts per channel into 8Ω (stereo)

Frequency response: 5Hz to 100kHz

Total harmonic distortion: 0.009%

Damping factor: 55

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

Signal to noise ratio: 87dB (MM), 110dB (line)

Output: 150mV (line)

Semiconductors: 3 x IC, 6 x FET, 73 x transistors, 49 x diodes

Dimensions: 453 x 155 x 376mm

Weight: 12.7kg

Year: 1980

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Reviews

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rating
Reviewed Aug 13th, 2017 by arti1155

Old school Japan sound quality with Vandersteen 1

 

Comments

re: SA-7800

can a modern CD/dvd player be sued with a Pioneer SA-7800? Would a tape play input work for the CD/DVD player or use Aux?

Thanks

re: SA-7800

Either one would work fine.

re: SA-7800 Pioneer Amp - Volume Knob Removal?

Does anyone know how to get the Main Volume knob off the SA-7800 Pioneer Amplifier? It's got 2 small holes at 90 degree angles, but I've tried small hex keys, small flat heads and small phillips heads, and I cannot find ANYTHING that appears to bite to loosen the two fasteners that (I am assuming) holds the knob on the shaft.

I'm trying to do this because the nut behind the knob came a little loose and I need to tighten it. I'm sure other Pioneers are similar. Anyone know what the trick is?

Thanks in advance!
MM78

re: SA-7800 Pioneer Amp - Volume Knob Removal?

Yes I know it's more than 1 year since the question was posted.
But I encountered the same "problem" and finally find the solution.
So, I'll post it here so others can benefit without headaches or waist of time:
Use a 1.5mm hex key. Make sure it is not worn, you don't want to booger the set screws! :) BTW: if there is dirt in those holes, DON'T jump with the hex key! First drip some alcohol inside the holes and wait about half an hour. Then try to remove the soaked dirt with a slim cleaning tool (a wadded stick or similar available tool)."

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