Question about Yamaha DSP-AX1 10-Channel Amplifier

3 Answers

Speaker Loss Of Sound

After an initial period of no probelms the left speaker channel sound deteriorates and then eventually there is no sound at all. I have had this checked 3 times by the service centre - each time they return it working perfectly no being able to reproduce the problem even though they witnessed this in my home environment. I believe this may be static related and the amp is not earthed as I live in Central europe and this is the standard wiring - unlike the UK that has an earth wire as standard in the power lead. This may explain that when earthed in the test environment that the problem cannot be replicated. I have switched the left and right speakers to ensure it is not them or the cables. The left speaker and cable performed perfectly on the right channel output and the previously functioning right speaker failed to work when on the left output channel. I have a DVD and CD player attached and a sub woofer powered through the amp.

Posted by on

3 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer
Re: Speaker Loss Of Sound

Works great after this solution with the cables.


Posted on Jan 22, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert who has answered 200 questions.

  • Expert
  • 236 Answers
Re: Speaker Loss Of Sound

If that is the remedy, injecting signals to trigger... then probably it is a defective analog IC switch.

Posted on Mar 19, 2008

Re: Speaker Loss Of Sound

The problems lies with the switch relays in the pre-outs for the both the main and center channels. The fix, so to speak is to obtain a simple composite cable and while the amp is on (muted) insert and extract the cable from the pre-out/inputs, do this a few time for each channel and then check levels for each speaker. This is a know defect with this unit and it's really unfortunate that Yamaha never owned up to it.

Posted on Feb 03, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Sansui AU-D33 Lh speaker channel not working.

As the channels are identical you can use the good channel has a guide to the bad one. First thing is to look around see if anything does not look the same as the right channel.

If nothing obvious stands out, with the power on, using an insulated screwdriver touch the two channels one at a time. Keep away from the power supply and anything that is common to both channels. The channel will buzz once touched. Depending which points you touch them. The right channel will tell you if it should buzz at that point. Work backwards from the speaker outputs if you can. If you hear a buzz on the left channel then it is working at that point, if it produces the same sound on the right.
Using this method you should track down the part that has gone.

Dec 11, 2015 | Amplifiers & Preamps

1 Answer

Teac A R300 right speaker has s badly distorted sound after 20 minutes. When I turn it off nad turn it on again, Same problem after 20 minutes. Left channel working perfect.

Have you changed the speakers to see if it is a driver, or amplifier, issue? If it follows the speaker, get it reconed. If it follows the channel, look into that channel.

Aug 19, 2014 | Amplifiers & Preamps

1 Answer

Left speaker not working when plugged into amplifier

If it works on the other channel, then you have a faulty amp. If the sound is good on headphones then the left power amp has gone. If not then you have a left pre-amp problem.
If the speaker doesn't work at all on any channel, then either there's a bad connection inside the speaker or one or more of the internal speakers have blown.

Feb 25, 2014 | Amplifiers & Preamps

1 Answer

Sound comes through only one speaker at a time.

Is the sound on both channels on a pair of headphones? If it is suspect a faulty headphone socket, especially if the speakers are cut out when the headphone jack is inserted - normally.

Jun 15, 2013 | Technics Amplifiers & Preamps

1 Answer

No sounds from the left speaker even with the balance turned fully to the left. all connection are fine.

Check the speaker, switch the left and right ones and see if the left speaker still has no sound. If it works the speaker is bad, if it doesnt your left output is bad...

Dec 06, 2009 | Sony TA-FE370 2-Channel Amplifier

1 Answer

Left side output

Sounds like there is a short somewhere on the left channel inside the amp. not easy to fix without seeing the unit.

Jun 16, 2009 | Crown CE2000 2-Channel Amplifier

1 Answer

Carver Sound Problems

your going to need this place to download the remedy's for your system

if it is not working then there is another serious problem , and it could be the amp IC or the volume IC but tests will need to be done to determine what is causing the failure , but it does sound like amp IC as a suspect since the rear were not even working , did the volume seem different when turning it up or down before the center quit or after the center quit?

Nov 02, 2008 | Amplifiers & Preamps

1 Answer

Scratching sound in speaker conected to left channel

invert the speaker cables if the problem went to right speaker you will find a problem in your left speaker(cable or speaker)-if not you will have a problem in your amp itself.

Jul 06, 2008 | Behringer Amplifiers & Preamps

2 Answers

Very low sound in main left chennel.

disconnect the cabel of left channel from your amp disconnect the cabel of right channel and put it in place of left channel if the problem goen your problem is in left speaker itself (cabel or speaker).if the problem excit the problem will be in amplifier output stage

Jan 28, 2008 | Yamaha DSP-AX1 10-Channel Amplifier

Not finding what you are looking for?
Yamaha DSP-AX1 10-Channel Amplifier Logo

1,121 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Amplifiers & Preamps Experts


Level 3 Expert

4518 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

The Knight
The Knight

Level 3 Expert

66413 Answers

Are you a Yamaha Amplifier and Preamp Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides