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One of my channel did not function

My amplifier is 4 channel type. now only 3 channel function, 1 channel front did not function. how to fix this. thanks in advance

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Check for loose connection, if continuity is present from end to end of that channel the next step is crack open the amp and visually look for signs of blown component. If it's a 4 channel amp, you will notice 4 same components if you divide the circuit board by 4 sides.

Posted on May 31, 2010

  • Ed Paje May 31, 2010

    Thanks!

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Please

Posted on Nov 21, 2014

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Looking for info on how to hook up sub to this amp thunder4160


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Your question appears under the product listing for the Dual XPA4100 but the in the text you say the amp is actually a Jensen, so it's not possible to provide specific connection information.

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The way the EQ is hooked up is correct.

You set the factory radio to a set level, then use the volume on the EQ for everyday adjustments.

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Low powered - high in sound quality.

You have swapped the factory 8 ohm speakers (15W) for 4 ohm power hungry ones.
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You would be best served eliminating the factory amplifier and getting 1 good 4 or 5 channel amp to power your speakers.

a 4 channel amplifier could be used stereo (left and right) on channels 1 and 2, (2ohm stereo load)
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a small dedicated 75wx4 channel amplifier with built in crossover, and level gain controls - would blow your socks off. It is 200x better than the factory 12Watt amplifier. Your ears will love you for it :D

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naz, get a hold of crown, tell them whats up. check all fuses and connections first. the unit is worth $900.00. they should be a little understanding.

Features
 

  • 2-ohm dual (per channel) : 1200W
  • 4-ohm dual (per channel) : 900W
  • 8-ohm dual (per channel) : 600W
  • 4-ohm Bridge : 2500W
  • 8-ohm Bridge 2100W

  • Indicators for : Signal, Clip, Power, AC Mains, Fault, Bridge, Temp.
  • Housed in a rugged, all-steel 2U chassis
  • Microprocessor-controlled protection system.
  • Flow-through ventilation from front to back.
  • Internal heat sinks with forced-air cooling for rapid, uniform heat dissipation.
  • EIA Standard 19-inch rack mount width
  • Safe with all types of loads.(2 to 8 ohms in Stereo, 4 to 8 ohms in Bridge Mono.)

Inputs 

  • XLR-¼" combo connectors: One per channel
  • 3-pin female XLR connector and TRS ¼" phone jack accept balanced or unbalanced signals.
  • 3-pin Phoenix-style connectors (2-channel models only),One per channel, accepts balanced or unbalanced signals.

Output 

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  • One per channel, 3-pin male XLR connector in parallel with XLR-¼" combo and Phoenix-style input connectors for daisy-chain operation.
  • 5-Way binding post output connectors: One pair per channel; accept banana plugs, spade lugs or bare wire.
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You are probably aware on how to use these output figures, but I'll write a quick explanation on the specifications for future readers anyways :)

The concpet CC-452 amplifier has the following power output specifications:

Calculated at 14.5 volts DC;

At 4 ohms per channel - 45 watts x 2 (RMS)
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This means that your amplifier would provide 45 watts of power each for your front speakers, which are normally a 4 ohm load per side (45 watts for left, 45 watts for right), that's unless they are one of those exotic higher end brands (eg: Boston Z6s which are 3 ohms). Rarely, you will find speakers that are rated at 2 ohms per side, but in this instance the amplifier will provide 70 watts of power into each speaker. On your speaker specifications, you will find a value termed "nominal impedance" which will give you the ohm rating of the speakers being used..

On the other hand, if you "bridge" both channels into a single channel (using a diagram often marked on the speaker terminals of the amp), you could then provide 150 watts into a subwoofer (providing it was a 4 ohm woofer).

It's not recommended to use this amp bridged under 4 ohms..

Some subwoofers may be lower than 4 ohms, and you will not be able to use this amplifier for these types of speakers without risking amplifier failure. Also, some subwoofers may have 2 seperate voice coils, and you will have to use both channels of the amplifier seperately (not bridged) in order to correctly connect this type of speaker for use.




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Channel problems


Do any of the channels produce sound?

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