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Re: jbl gto 75.4 right channel not working
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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It is confusing with the 4 channels it gives you but you really only need to connect it to one or the other positive and negative terminals. The amps channel setup looks like this + - + - . You can connect to the first positive and negative, the second, or combine them. I had mine installed by a professional which is how I know. Also if you want to run your amp at 2 ohms then connect the subs voice coils in a parallel circuit which means that all positives are connected to each other and the same goes for the negatives. it should match the impedances of both sub and amp. Hope this helps!
Check the voltage at the amp. It's possible that the voltage is either too high (above 16V) or too low (below 8.5V). Also make sure that the amp case is not grounded. If these check out OK, the most likely cause is that the amp itself is defective and requires service.
it seems rather redundant to bridge a mono amp. Unless the instruction manual states otherwise, i would assume that one speaker output is identical to the other (ran in parallel, like an A or B speaker, not like Left or Right), and you would present the amp with a two ohm load by wiring one speaker to each output. Bridging it may or may not work, but, again, it just seems redundant.
try this it has worked for me in the past,..Contact Clarion by e-mail .Tell them your a student and learning electronics and in need of installation ,owners manual..ask if they can help and mail you info you need.Or try this link ..Its for a APA5241 could be very similar..http://www.clarion.com/us/en/MungoBlobs/720/1016/APA5241.pdf