Question about NAD C350 2-Channel Amplifier

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My NAD C350 do start when turned on but 2 seconds then it turns red. Doesn't help to disconnect the speakers or turning off soft clipping. What to do?

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1 Answer

My old NAD C350 AMP diode turns green when the amp is switched on, says one click, but the second click sound does not appear, like in the good old days. What to do?


Your receiver has a condition known as DC Offset, meaning you have a damaged amplifier. That second relay click, that you don't hear now, is the speaker protection relay not closing, due to the damage.

If you're interested in having your receiver repaired, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.

Feb 21, 2015 | NAD Audio Players & Recorders

1 Answer

My NAD C350 plays very faintly. when I turn the volume dial to the max position, I can bearly hear the music. I can hear properly from earphones output. Thanks


Take care. First put the volume down complete. Then unplug the head phone and than try to raise the volume. Could be the headphone connector does not switch through correct. Could be the connections between the pre and power amp are not in place or not proper pushed in?
Always take care when working with amplifiers. When switching them on with volume to max, you easy can kill your speakers. Also when disconnecting the headphones on full power kan damage the loudspeakers.

Aug 29, 2013 | NAD Audio Players & Recorders

2 Answers

Wotcha, i've just taken amp out of storage, has'nt been used for a while cant get volume to work properly the sound goes from speaker to speaker and up and down in volume whilst crackeling a lot as...


One way of proving it ISN'T the amp circuitry is to remove the pre-main jumpers and jack in a source that has its own volume control (or try a CD that starts really low) because this bypasses ALL the amps controls. If it sounds ok (albeit LOUD) I'd suspect oxidized contacts on the controls. Turn it off and vigorously operate all controls a zillion times to wear through it. In mosty cases it's the unused controls that fail because they never get wiped. Maybe a shot of contact cleaner on those you can access.

http://www.overload.it/supporto/643/manuali/NAD-C350.pdf

Oct 15, 2011 | NAD C350 2-Channel Amplifier

1 Answer

Sony STR-D590 RECEIVER


This is a power overload protection circuit, to prevent you from blowing out your speakers. It's measuring the amperage through the circuit; I suspect you have a short-circuit in your speaker cables (do you have pets?).

To check, disconnect all speakers, then add one at a time until the problems appears. When it does, that's the speaker wire to check.

Jun 27, 2009 | NAD C350 2-Channel Amplifier

1 Answer

Nad c350 no power at all


check your output stage for bad speakers cable or bare wire of cable touch the body of amp----short circuit speaker cable----bad speaker it self------ bad input cable or defective input device .
disconnect all and check if it is ok---start to connect one by one from input to outputs------if all above failed you must contact service center for help.

Aug 22, 2008 | NAD C320 2-Channel Amplifier

1 Answer

Gemsound power speaker pxa105


First,
Disconnect any input cables from the amp. Turn down the volume controls and disconnect the speakers. Power back on. If you still blow fuses with nothing hooked up, have the amp fixed.
If the fuse holds, shut down and connect the speakers, leaving the volume controls down. Power up and see if your fuse holds. If you have hum, an output transistor is most likely shorted. If you have no noise, SLOWLY turn up the volume controls and listen for the hum. If all is quiet, turn down the volume controls and connect your input cables and turn the volume back up. Noise? check your cables!
Mister Phil

Apr 07, 2008 | NAD C350 2-Channel Amplifier

2 Answers

Nad amp failure


Check fuses mounted near transformer . If blown check output transistor. Also check transistor transistors on small heat sink . they will cause fuse to blow.

Mar 10, 2008 | NAD C350 2-Channel Amplifier

1 Answer

Carver TFM -35


possible short in speaker system. Disconnect the speaker to that channel. if it does not click off then you have a short outside the amp in your wiring or in the speaker.

Sep 17, 2007 | NAD C350 2-Channel Amplifier

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