Question about Audio Players & Recorders

1 Answer

Speakers cut out.

I have a Technics SU-G90 and sometimes the left or right or both speaker channels cut out. I can tap on the unit or turn the volume up and the speakers cut on momentarily, then back off. I have tried to switch the speaker wires to different plugs on the back of the unit, but I get the same results. I would appreciate any help, thanks!

Posted by on

  • stacyl70 Jan 31, 2009

    I have my unit getting repaired right now! Thanks for the answer, I almost threw it out, YIKES!



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 306 Answers

"Tapping on the unit" is the salient point that prevented me from thinking that it was a speaker impedance issue. That would indicate a solder connection problem. Unless you are qualified to work at the component level I would take your unit to someone who is as it may destroy the amplifier eventually. Steve Medley

Posted on Jan 26, 2009

  • Stephen Medley
    Stephen Medley Feb 08, 2009

    Good to hear that you are getting expert technical help. Often it comes back better than before :) And thanks for the rating!         Steve Medley 



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

On my Technics SU-G90 where do I connect the subwoofer

Some amps have a single RCA socket for a powered sub. If it has not got one of these then the amp has no output for a powered sub. If so then you can only use a none powered subwoofer, which will connect via the speakers of the amp, see the subwoofer manual for how to do this.

Feb 18, 2014 | Audio Players & Recorders

1 Answer

I have a Technics SU-V460 integrated amplifier, and the left channel (speaker) keeps "dropping" out . I have to turn the volume right up in order for it to "kick" back in. Would this be...

There are three possible problems with your system. The first, and cheapest to fix, is that the wire connecting the left channel is faulty. To test this, unplug the wire from the back of the amp and put a new one in, then play some music BEFORE putting everything back into it's respective place. If the speaker doesn't cut out anymore, problem solved! Speaker wire is very cheap too. If the problem persists, try connecting one of your other speakers that you know works to the input. If that speaker cuts out as well, then the amplifier is the faulty component. That will cost some money to repair (between $50-$150 depending on where you go, excluding the price of a new amplifier). If the speaker you know is not faulty works when plugged into the left channel, then the only other option is that the original left channel speaker is faulty. This could cost between $25-$100 to get repaired, excluding the cost of a new speaker. It will not be as costly as a new amp, but will definitely cost more than a new speaker cable.

Mar 03, 2011 | Car Audio & Video

1 Answer

Hello I have a Technics SU-V45A amp, it's about 18

See there is a problem with the volume conroller as it is 18 years old the controller has worn out replace the volume controller with a new one and you will be able to enjoy great sound again

Dec 05, 2010 | Technics SUV500 2-Channel Amplifier

2 Answers

Su-v55a technics amp cuts off when volume up to 2

usually meens it is protecting itself from destruction
check your wires and speakers for problems

Feb 09, 2010 | Technics SUV500 2-Channel Amplifier

1 Answer

Lost left stereo channel from amp. All speakers / wiring ok Technics SU-V6 amplifier. Wondering which component is most likely problem so I can cannibalise another amp.

If at full volume with the balance cutting out the right channel you can hear some music on the left (very weak), then the pre-amp is working and it's the power amp that's gone. Vice-versa if you can't anything, but say hum.
If it is the power amp check out the devices on the heat sink.
Check too for broken or burnt parts too!

Jan 21, 2010 | Audio Players & Recorders

1 Answer

Technics Integrated amplifier su-v85a speaker volume fluxuates and speaker left shuts down some times what is the problem?

test you speaker maybe there is a bad connection some where is the spk. box its self ,try changing speakers left to right .
it the spk. are ok open amp see all the connections within the amp .
if this dose not work contact me by mail:

Oct 12, 2009 | Technics SUV500 2-Channel Amplifier

1 Answer

Technics SU-G90 Amplifier from the late 80's. Unit will click off after a few minutes on. If left alone, unit sometimes clicks back on, with a loud "pop" from the speakers. Tapping the unit...

because bad connections, probably in the driver section of the endstage, dc current apears on the output and shuts down the output through the relay.

Aug 25, 2008 | Audio Players & Recorders

2 Answers

Sound cuts when volume is turned up

check that power amplifier rating(how many watt)must be more than total speaker rating by 20% at least..
exampel:if speakers watts are 100 watt-amplifier watt must be 120 watt.

Mar 14, 2008 | Technics SUV500 2-Channel Amplifier

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

306 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts


Level 3 Expert

102366 Answers


Level 3 Expert

5318 Answers

The Knight
The Knight

Level 3 Expert

75025 Answers

Are you an Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides