Question about NAD C320 2-Channel Amplifier

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NAD C320 Amp Problem

When I turn my amplifier up to a moderate level, the sound cuts out from the speakers in time with the bass, and all the lights dim on the front of it at the same time. It is as if the speakers are drawing too much current. The set up has been fine for the last 5 or so years, I have checked all cables and connections. Does anybody know what the problem could be? and how I could resolve it?

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Check ur power supply bru

Posted on May 09, 2016

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It could be a pre amp or amplifier problem and would require either replacement or a service technician to look at it.

Posted on Jun 18, 2009

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1 Answer

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

My NAD C320 outputs a very low sound volume


Hi there I have a C340 that has similar problem, you must have bought this from ebay, lol.

Nad made a mistake on the C range, the pre - power link can be shorted out. if the pre is shorted out it takes out the pre amplifier stage, I have managed to get the right channel working, I will keep you informed what is the cause of the left channel. I have replaced the pre-amp IC and a couple of Jfets and transistors. Once I have repaired the Amp I could repaire yours if you like???

Apr 14, 2012 | NAD C320 2-Channel Amplifier

1 Answer

Nad c320bee keep over heating


Hello
Disconnect all speakers and switch ON the set without any input connected, and see whether it heats up. A moderate heat is permissable, but should not over heat. If it overheats without any load or input connected, the set need service. OK.

Jan 19, 2012 | NAD Audio Players & Recorders

1 Answer

No volume control


lower the volume of the cd player

May 08, 2009 | NAD C320 2-Channel Amplifier

1 Answer

C320 only red light goes on, doesn't switch to green and speakers start humming. None of functions work.


HI...

There are failed components in the power supply -to-power amp section.
I can suggest a repair place if I know your area

Thanks

May 01, 2009 | NAD C320 2-Channel Amplifier

1 Answer

Cuts out when volume increased


it went to protection mode check your cables first and then check your speakers-and confirm no cable touch each other(try with another speakers had same rating)(watt)--means how much power can get.

Jul 28, 2008 | NAD C320 2-Channel Amplifier

1 Answer

Amp wont switch off of stand-by


Both units have a problem with the output section. In case 1, the outputs are likely to be shorted. In case 2, the outputs are open. The low level and distortion come from you driving the speakers with the driver section of the amp. Both units will need to see a service provider.
Dan

Apr 11, 2008 | NAD C320 2-Channel Amplifier

2 Answers

Nad c320


If your amp is under warranty, bring it to the nearest service center to have it fixed. But if not, and you know a little electronics, check for the bloated capacitor and/or a burnt resistor on the audio module and replace it. still not working, change the audio I.C. of the amp. If you don't know electronics, bring it to the electronics shop. Audio coming out of the headphone is different form the audio of the speakers. Sounds on your headphone is coming from the preamp circuit. That explains why the headphone audio is ok.




A Simple Thanks is Good Enough

Feb 14, 2008 | NAD C320 2-Channel Amplifier

1 Answer

Protect light


Set your Filter Switch to LPF.  Turn the Bass Gain/ level all the way down temporarily. Set your Crossover to below 100HZ.  Then Turn on the system with a Bass test sound.  Turn up your bass Gain/level until you get distortion.  Then turn it back till you just get the distortion out. Then do not warn everyone that you will De-nad them if they touch your settings.

Oct 23, 2006 | Jensen JXP680 Car Audio Amplifier

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