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Sansui au 317 amplifier giving very low sound when turned to full volume

Posted by Anonymous on

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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jerryg50
  • 1667 Answers

SOURCE: I have a Sansui AU-717

This company is not like they used to be. You can try the links below to see if you can find authorized service for your set.

Sansui:
http://www.sansui-india.com/

http://www.classicsansui.net/


Historic information about Sansui:
http://en.wikipedia.org/wiki/Sansui


I would personaly suggest to find a service center or a very good local tech who can do audio amplifier and reciever service.


Jerry G.

Posted on Apr 13, 2008

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robotek
  • 1512 Answers

SOURCE: I own a classic Sansui

Hi mellemcee


Cool amp mate, and becoming collectable now to. Sansui amps from the era where the best in the world of HiFi. iT may have lost bias control to the offending channel, it may have dirty source switches, tape monitor switch, or even speaker switching. The speaker protection relay may also have a dirty contact, will usually burst back into life with a quick rotation of the vol control. Can you pin the problem down a little more with the info i have given you, try all the controls to see if it impacts on operations, you will need to fix those problems first. Low bias would make that channel sound distorted at low levels also. Is this what is happening to you??

regards
Graeme

Posted on Apr 18, 2008

robotek
  • 1512 Answers

SOURCE: My Marantz PM-32 Amplifier has

Hi

First thing to check is to see if someone has turned on the Tape Monitor has been turned on by someone. The symptoms you describe certainly sound like it. Check that out and get back to me if it does not solve the problem

regards
robotek

Posted on Nov 08, 2008

  • 21 Answers

SOURCE: sansui au-G90x integrated amplifier connetcted

Dirth control switches and/or dirty/corroded/worn-out speaker relay.

Posted on Sep 03, 2009

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Set your SAT receiver to full volume and use your Sony TV volume control as the master volume control. If you use an external surround sound amplifier do the same thing using the amplifiers volume control as the master volume control.

Consider that all source devices that have the ability to control their output volume will output what they call line level 0dB when the source device is set for maximum volume. If you set the source device to 1/4 volume your output to the amplifier may be around -25dB or lower. Introduce that low of an audio level to the amp and you will have to turn the amp up to half way or better causing the amp to amplify noise too.

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I own a classic Sansui intergrated amplifier (AU-717). It has a short in one channel. At low volume, the sound shorts out. I've had this unit for about 20 years now. Otherwise, it's a great product!


Hi mellemcee


Cool amp mate, and becoming collectable now to. Sansui amps from the era where the best in the world of HiFi. iT may have lost bias control to the offending channel, it may have dirty source switches, tape monitor switch, or even speaker switching. The speaker protection relay may also have a dirty contact, will usually burst back into life with a quick rotation of the vol control. Can you pin the problem down a little more with the info i have given you, try all the controls to see if it impacts on operations, you will need to fix those problems first. Low bias would make that channel sound distorted at low levels also. Is this what is happening to you??

regards
Graeme

Apr 18, 2008 | Audio Players & Recorders

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