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

Performance teqneck 3000 watts cut out when volume turn up


needs more power, or how your wired impedance is too low.

1.upgrade your power cable
2.buy a second battery not a capacitor
3. run power cable to the second battery from the + of the from battery the battery from the front
4. run at minimum of 4 gauge power wire
5. run 4 gauge wire from the alt to the main battery
6 run 4 gauge from the negative of the battery to the ground chassis
7. run 4 gauge + to the rear battery
8 run 4 gauge ground near your amp
9. turn down the gain and bass boost, set it a moderate level where you wont hear distortion
10. set the bass level from your stereo deck at a moderate level also.

find your impedance.
look at your woofers and find have a number like 1,2,4 ohm.
find out what your amplifier minimum needs to operate in OHM's.
look here.
http://www.the12volt.com/caraudio/boxcalcs.asp

Nov 13, 2013 | Alpine PDX-1.600 Car Audio Amplifier

2 Answers

After playing a a few small gigs my husbands Hartke vx3500 bass amp cuts out with the sound BUT the head seems to stay lit up, dont have problems when a low volume but during a gig has randomly cut out for...


It has something loose on the board or where the speaker wires connect. Combo amps are really bad about doing this. The vibrations from the speakers loosen the components on the board.

Sep 03, 2011 | Hartke VX3500 Bass Guitar Combo Amplifier

1 Answer

It keeps turning off eventhough the back switch is turned on


You need to determine if its a malfunction of the sub or just due to a loss of input. And is it always in response to, say, over-enthusiastic use?

From the manual...

TROUBLESHOOTING

If you used the high-level (speaker) inputs and there is no sound from any of the

speakers:

• Check that receiver/amplifier is on and a source is playing.

• Check that powered subwoofer is plugged into an active electrical outlet and is switched on.

• Check all wires and connections between receiver/amplifier and speakers. Make sure all wires

are connected. Make sure none of the speaker wires are frayed, cut or punctured.

• Review proper operation of your receiver/amplifier.

If there is low (or no) bass output:

• Make sure the connections to the left and right "Speaker Inputs" have the correct polarity (+ and -).

• Make sure that the subwoofer is plugged into an active electrical outlet and switched on.

• Adjust the crossover point.

• Flip the Phase Control switch to the opposite position.

• If you are using a Dolby Digital/DTS receiver or processor, make sure that the

subwoofer adjustments on the receiver/processor are set up correctly.

• Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass.

If you used the line-level inputs and there is no sound from the subwoofer:

• Check that receiver/amplifier is on and a source is playing.

• Check that powered subwoofer is plugged into an active electrical outlet and is switched on.

• Check all wires and connections between receiver/amplifier and subwoofer.

Make sure all wires are connected. Make sure none of the wires are frayed, cut or punctured.

• Review proper operation of your receiver/amplifier.

• Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass.

• Make sure that you have configured your receiver/processor so that the subwoofer/LFE output is on.

Mar 06, 2011 | JBL PB12 Subwoofer

1 Answer

Amp pops randomly and gets worse with my remote bass knob hooked up any ideas ?


When you say that the amp "pops" are you referring to the sound that is coming out of the speakers?
This is most likely the speakers "bottoming out", i.e. moving as much as they can, and then slapping against the back of the speaker frame. Adding the remote bass knob (presumably increasing the signal to the amplifier) would make the problem a bit worse, which explains why the popping increases after you add the bass knob.

You can try decreasing the gain on your amplifier and running the system at a moderate volume. If there's no popping occurring, you can be reasonably sure that the subs/speakers are just being over-driven.

Mar 03, 2011 | Rockford Fosgate Power 1501BD Car Audio...

1 Answer

Hi im after some help coz driving w/o music is no fun. Just done a sterio system upgrade to my car using mid-high end sony xplod components ie 6x9s in the rear, xm4s amp, 6.5s in the doors new head unit...


Congratulations on your new audio system. I will give you 4 scenarios: 1st. From your head unit, use the Fader to separate the front speakers from the back. (only front speakers playing) now using the balance separate the left from the right so only one speaker is playing. If the sound becomes more bass filled then you have a phasing problems which could cause cut out (protection) issues. Do the same for the back speakers, BOTTOM LINE: make sure that your connections from amplifier to speakers are all correctly connected where they should be.You will know that your speakers are correctly connected when the bass is richer while both speakers are playing as opposed to more bass when only one is playing. 2nd. Your head unit RCA output is of a certain voltage (V) [signal strength]. (1.2V, 2V, 4V, 5V) Lets say that your head unit has a 4V output, To match this up with your amplifier you must adjust the gain control on your amplifier to be at the 4V position. If your voltage output does not match your input voltage and the signal in result that is being sent is too high for the settings on the amplifier, you will over voltage your amplifier making it distort then heat up and most likely start cutting out to protect it self. this could also potentialy damage your speakers. 3rd. Check that the speaker cables are not shorting on metal anywhere, that includes the speaker terminals not touching the frame of the location that they have been installed. 4th. The cable size you are using is not adequate for the power needs of your amp. hope this helps. dreamsystems

Feb 13, 2011 | Sony XM-4S Car Audio Amplifier

1 Answer

It comes on but no base sound and wont turn up


You have to fill in the details about what you're feeding it (the source and how IT's set up). It won't just >>create<< bass.

From the manual:

If you used the high-level (speaker) inputs and there
is no sound from any of the speakers:
• Check that receiver/amplifier is on and a source is playing.
• Check that powered subwoofer is plugged into an active electrical outlet and is switched on.
• Check all wires and connections between
receiver/amplifier and speakers. Make sure all wires
are connected. Make sure none of the speaker wires are
frayed, cut or punctured.
• Review proper operation of your receiver/amplifier.

If there is low (or no) bass output:
• Make sure the connections to the left and right “Speaker
Inputs” have the correct polarity (+ and –).
• Make sure that the subwoofer is plugged into an active electrical outlet and switched on.
• Adjust the crossover point.
• Flip the Phase Control switch to the opposite position.
• If you are using a Dolby Digital/DTS receiver or processor, make sure that the subwoofer adjustments on the receiver/processor are set up correctly.
• Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass.

If you used the line-level inputs and there is no sound
from the subwoofer:
• Check that receiver/amplifier is on and a source is playing.
• Check that powered subwoofer is plugged into an active electrical outlet and is switched on.
• Check all wires and connections between receiver/amplifier and subwoofer. Make sure all wires are connected. Make sure none
of the wires are frayed, cut or punctured.
• Review proper operation of your receiver/amplifier.
• Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass.
• Make sure that you have configured your receiver/processor so that the subwoofer/LFE output is on.

Apr 07, 2010 | JBL PB12 Subwoofer

1 Answer

Bass only going to rear speakers. How do I get


Hello michaelandta,

Check your filter settings on the front channels. It sounds like they may be set to "high pass" which would eliminate the bass frequencies. If you are using the amp to power normal speakers, it's usually best to set the filters for "full range". If the amp only has "low pass" and "high pass" settings, turn them both OFF.

Hope this helps.

Sep 11, 2009 | Zapco I-450 IFORCE SERIES 4 CHANNEL CAR...

1 Answer

Watts


The MRD-M300 has speaker-level inputs so you can easily use it with any car stereo. Hook it up and hear what good bass can sound like!
Details:
  • 150 watts RMS x 1 at 4 ohms
  • 300 watts RMS x 1 at 2 ohms
  • MOSFET power supply and output stage
  • STAR Topology for cleaner sound
  • Bass Engine® features:
    • low-pass digital crossover, 30-200 Hz, 24 dB/octave
    • variable subsonic filter (15-50 Hz in 5 Hz steps)
    • parametric EQ variable from 30-160 Hz
    • Bass Compensator enhances low-end definition
  • top-mounted digital control center with cover
  • time correction 0-10 milliseconds in 0.5ms steps
  • phase correction 0-180° selectable
  • digital readout
  • detachable front cover
  • blue power LED
  • delayed turn-on
  • requires 8-gauge power and ground leads — wiring and hardware not included with amplifier
  • speaker- and preamp-level inputs
  • gold-plated terminals
  • 8-5/16"W x 2-11/16"H x 11-1/2"D (10"D without front cover)
  • 1-year warranty

May 29, 2009 | Alpine MRD-M300 Car Audio Amplifier

1 Answer

When the bass cut on the speakers cut off


220 watts RMS x 1 at 4 ohms (400 watts RMS x 1 at 2 ohms)
the amplifier may be over-driven. are there red protection lights coming on the front panel? Or a loose wire - power, ground, or speaker.

Dec 18, 2008 | Alpine MRP-M450 Car Audio Amplifier

1 Answer

Speakers cut off when bass goes up...


sounds like you hava a load problem.if your'e running your woofers at 1ohm,make shure your amp is 1ohm stable.....

Jul 03, 2008 | Car Audio & Video

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