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Hi i have an audio source 300 watt amp with a&b speaker outputs. the problem is that no sound comes from the left side outputs a or b. the right side works fine thank you mike

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You have a blown channel. If you are experienced with electronics repair, use the right channel to assist in diagnosing the left. Both channels should be efectively identical. In most cases, the defective parts are the output transistors. You should be able to A/B the output amp sections.

Let me know if you need further assistance.
Dan

Posted on Jan 14, 2009

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NAD C320. Only one channel sounds. Problem with the volume control?


Did you try to switch the loudspeakers? Before changing anything always lover the volume and switch off the amplifier.
Assuming you tested already different inputs, you can be sure no cable from signal source is out or defect. (or did you nit check that first?).
When the amp is switched off, disconnect the speakers and switch left to right and right to the left output.. If the other speaker is quiet now, you are sure it is in the amp. Still his can be anything.
You can check the connections between the pre and main amplifier on the back side. When you have an extra set of interlink cables, perhaps you can cross the in and output there too. Take care every time you change something, lower the voltage and switch off the amplifier. Sudden clicks when switching on or changing anything can damage the amp and or the speakers.

Perhaps when you checked this you can locate where the problem is? Speaker, speaker cable, power amp, pre amp, (only a part of the pre amp.

Nov 12, 2013 | NAD C320 2-Channel Amplifier

1 Answer

KA-994 Model Right speaker channel not working. How do I fix it?


Hello
Check the speaker of the right side first for damage. Connect it to left side and listen whether it works or not. If it works with left side, make sure that the audio output section circuit to the left side inside your amp has damaged and should be replaced. If the speker does not works with connecting it to the right side, make sure that the speaker has damaged. OK.

Dec 23, 2011 | Amplifiers & Preamps

1 Answer

I don't have any instructions so i don't know how to hook up my speakers and the t.v for surround sound i have a carver avr 100


You should be able to online to the manufacturer of your products and download manuals. However, I will try to help.

Connect the sound output cables from your DVD player including, left/right(white/red) as well as the Coax output/input if your DVD and your Carver each have this feature for enhanced sound on certain DVDs, and connect to the matching DVD inputs on your Carver.

Then, connect your DVD video output either by use of your RGB(RED/GREEN/BLUE cables or an S Video cable to your the matching video inputs on your t.v.

On the back of your Carver, you will find outputs for left and right speakers, connect to the left and right speakers with proper wire. Make sure that the 2 conductor wire is connected with the same side(polarity) on all speakers for the best sound quality.

You will also find rear channel left and right outputs on your amp, connect those to your rear right and left speakers.

Connect the center channel speaker to the center channel speaker output on your amp.

If your Amp has a sub-woofer output and you have a subwoofer, make the connections on that as well.

Test all of the speakers with a feature that many amps have on the menu using your remote, simply called test. if all speakers are connected correctly you will be able to hear each one as they are individually tested by the amp. Hope this helps out.

Oct 05, 2009 | Amplifiers & Preamps

1 Answer

Left output ports for both left and right channels do not work


Hi, first thing to do is to check the power supply look for a larger capacitor & using voltmeter measure both sides from ground to positive & ground to negative. Next check the speaker protection circuit if active. If not active measure the voltage from ground to the speaker output before the relay of speaker protection device. The voltage should be zero or close to zero volt. If more then the power transistor or power IC is toasted.

Aug 10, 2009 | Cambridge Audio Azur 540A Amplifier

1 Answer

Center speaker hookup to a MARANTZ mdl 2238


Hi tliguyanadig

You can hook up the speaker "between" left and right outputs. Just connect the center speaker between left +ve and right +ve outputs respectively. It will give a spacial effect that some like and some dont:) Try it and see for yourself. Your marantz amp will handle the load OK. It is rated 38 watts into 8 ohms, but there is not alot of load presented by this sort of setup. Let me know what you think.

regards
Graeme

Apr 03, 2008 | Amplifiers & Preamps

3 Answers

Distorted sound


This is an automatic high end amp. Make sure you are using 8 ohm speakers. If the connections are correct, also use good quality speaker wire.

If this makes no difference, it seems that it would need to go to the repair shop.

Feb 18, 2008 | Yamaha DSP-A1000 5-Channel Amplifier

2 Answers

Technics SUV500 Amplifier


check volume balance between right and left-then change inter connection between sound source and amplifier with new cabel(i prefer gold plated type connectors)(see radio shack).
after that if the problem excit your fault in output transistors or output stereo ic depend on circuit design.

Feb 17, 2008 | Technics SUV500 2-Channel Amplifier

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

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