Question about Digital Audio 2, CHANNEL 600 WATTS HIGH POWER CLASS A/B AMPLIFIER DA2200W Car Audio Amplifier

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Any other suggestions...

I already checked the output of the reciever wich was still sending signal through outputs....and checked all other obvious things..but thanx...any other suggestions?

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Make sure you have solid power and ground resistance (connections)
-jeff

Posted on Sep 04, 2008

  • jeff r
    jeff r Sep 05, 2008

    figure it out?

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Do you plug the sub woofer outputs to another amp?


Yes, for best results. Your subwoofer should have a seperate amplifier because it has low pass filter that produces low frequency signals. It is done by connecting the sub woofer output to the input signal of the amplifier and then connecting the output signal to the subwoofer speaker terminals. Hope this helps.

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If you didn't find any burned parts that would mean one of the buffer amplifiers before the power amp could have died. They could either be transistor based or opamp based. They are fairly low power so they will not explode like the output transistors like to do. Contact rockford, they should be able to send you a schematic. Let me know I will try to help you through it.

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2 Answers

No power on my car amp subwoofer,just bought it on ebay,this cheap 1600 watts amp package w/ speaker,cable kit,tweeter and,etc..,already checked fuse cables and etc..all are in good connection,try to open...


i've already test my amp and crossover by putting jumper fr/ B+12 to remote and both turned on,i'll be using ipod or mp3 player for music output thats why it made me confuse of the remote connection,yeah i'll just make a switch for the both of them beside so i could turn them off,thanks guys you help a lot,i used to set up old amps and they don't have remote switch they already have a built in switch.it's been a while,i should be chatting you guys to get informed,thanx again guys

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1 Answer

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1 Answer

Jbl gto 75.4 right channel not working


Hi

It's rare that 2 channels will fail simultaneously, are you sending 4 signals to the amp or just 2?

If you are sending just 2, perhaps the problem lies before the amp in the cabling to it, or the output from the headunit. If you are sending 4 signals then there may be a fuse in the amp that drives 2 channels out of the 4. Of course this may be the case should you just be sending 2 signals.

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If that's not possible, the amp will need to be repaired. Do you want to try to repair it yourself?




For the head unit, you need to check the shield ground first. The following page will show you how to perform the test.

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Let me know if you have any other questions.

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1 Answer

How do i know if my amp is blown


Hey Yoo,

 

Go to Radio shack and get you an adapter that will take an earphone jack and convert it to RCA male.  You use this to simulate the signal coming from the reciever.  Hook up to a Cd player or Walkman, anything with an earphone output jack. Test that the device actually puts out music or anything worth listening to.  Connect the device to the input of your amp, with the car running, and the reciever turned on.. This will tell yo if the signal is getting from the reciever to the amp. You may not be getting signal from the head unit. 

If you still get no sound to the woofers, dsisconnect the woofers and try a different speaker.  If that speaker dont work,  Change setting and switches., and if you still get no sound, then your amp is toast.

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