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Sansui AU-555

Solid State Stereo Control Amplifier (1969-71)

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Sansui AU-555


Power output: 20 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 50kHz

Total harmonic distortion: 0.5%

Damping factor: 12

Input sensitivity: 3.5mV (mic), 2mV (MM), 200mV (line)

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

Output: 140mV (line)

Speaker load impedance: 4Ω to 16Ω

Semiconductors: 22 x transistors, 6 x diodes, 4 x thermistors, 1 x SCR

Dimensions: 15 x 4-3/8 x 10-7/8 inches

Weight: 17.4lbs


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Reviewed Jul 02nd, 2018 by ikram89

Such a warm amp. For an amp that is from the late 60's/ early 70's, you'll be quite amazed. Despite its low rated wattage, all I can say is that it sings like a charm, performs like a champ.

Reviewed Mar 03rd, 2018 by warchants

great sounding amp. I think the wattage rating is lower than it performs. Drives very well. Very warm and tube like.

Reviewed Aug 09th, 2017 by Jim Gilbert

Beautiful sounding vintage piece!

Reviewed Oct 10th, 2015 by Jack_loves_sansui

Love it. I use it with LM 110 and SR 222 Mk2. Great warm, tube like sound.

Reviewed Jul 22nd, 2015 by jammonz

a beautiful little integrated and under stated as far as output wattage.



Semaphorian39th's picture

re: AU-555

Recapped equal Farad ratings The Sansui AU555 sound's very strong, bold and warm and my favorite Sansui that I like to recommend

re: AU-555

I have had the A version of this amp for many years and it has great sound. I like the tone controls.
It has been very reliable also.

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