Question about NAD C372 Amplifier
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Posted on Jan 02, 2017
SOURCE: 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.
Posted on May 19, 2008
SOURCE: nad c372 prob
The unit is detecting a problem and shutting down in what is usually called "protect" mode. Look for bad connections on the board near the voltage regulators.
Posted on Sep 09, 2008
Hiya, did you try to swop the inputs as well and see if the problem swops. Try that as the input could also be low. If so try change the cable.
If not there try cleaning out the balance pot with switch cleaner (have to open to that and only you are comfortable).
If thats not there then likely an internal problem and will have to send it in.
Best of luck
Posted on Jul 14, 2009
SOURCE: There is a distortion in
If the distortion is also the same in the earphone jack of the unit, this is an indication that the fault was came from the unit itself. This kind of symptoms is technical and needs an experienced to isolate the fault from input circuitry, pre-amplifier stage, and in the sound output section of the unit.
The fault is caused by "Bad input cable cords", "faulty filter electrolytic capacitor" and/or bad solder joints in the said sections.
Replace/swap first the cables to ensure that the fault was not came from bad connections.
If the symptoms still persist after you've replaced the input cables, you must check bad solder joints (cracked, dried, cold solder) in the board. You should work in the brightest area or use table/portable lamp and magnifying glass because these are hard to spot. Check it also in the power supply board.
Let me know if the symptoms still persist after the above solution had been done to assist you further.
Posted on Jun 18, 2011
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Dec 16, 2013 | NAD C372 Amplifier
Dec 23, 2012 | NAD C372 Amplifier
You DO realize the preamp is duplicating stuff in the Nad C372, right? This Preamps adds nothing but PHONO connectivity and control. That's why they're called "preamps".
Register and download the manual for free at retrevo.com
Model 2100 Picture and article:
Use the Sub Out pair on the Preamp (joined by an RCA Y-cable) for the Sub Input on the sub (duh):
Run RCA from the Preamp Main Out to the C372 Aux In to hear any sources attached to the preamp.
Or, if you don't NEED the preamp because you don't have a turntable,ditch the preamp and connect the sub using the speaker outputs on the NADS, according to the manual.
Mar 08, 2011 | NAD C372 Amplifier
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