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need some X100.4 help please
Posted: Mon Aug 20, 2007 8:33 am
by Andrew87
I just received a xenon 100.4 amp and installed it to power my speakers anyways long story short im not getting any output readings at the out posts the blue and red LED's are on solidly so it appares to be running funcionally and heres where it gets tricky when i multimeter the output posts on the amp i get nop reading except for on the rear and front right side negative output thats the only one getting a reading, the rear gets a much higher reading than the front on AV volts :S isn't an amplifier supposed to put out direct current? and how come none of the other posts are putting out any power ive double checked my RCA's, tried new ones that can't be the problem power and grounds are good i have no idea whats going on here can anyone help?
Posted: Mon Aug 20, 2007 10:31 am
by AVICJR
Welcome to the phorum!
I know this may sound elementary, but switch the RCA's from right to left and vice versa to see if it changes the channel output. Did you check the RCA's at the source of origin? Engage/disengage the 2 channel 4 channel input button.
Posted: Mon Aug 20, 2007 11:06 am
by Andrew87
I do have a new devepment here see my system is as followes stock headunit-rockford3sixty.1 intereactive signal processor(gives me preouts for amp) to my PG X100.4 powering speakers so i did what you said and tried playing with the RCA's a little bit and i got a somewhat varied result i know this makes no sense whatsoever im pretty baffled anyways it would appear that in the rockford signal processor the right rear preout and the right front preout when used as a single channel will give me power to the woofers alone on both front woofers.....but not any output from the tweeters....before i had the front left and right RCA's connected to the front L and R of the amp and was only getting signal to the front left woofer(no rear speakers are ocnnected at this time) so it appears the problem now lies in the signal processor :S?
Posted: Mon Aug 20, 2007 11:12 am
by Eric D
Music is AC, not DC. Put your meter on AC and see what you measure with music signals.
Posted: Mon Aug 20, 2007 11:14 am
by AVICJR
Good job Andrew. I always analyze a problem through process of elimination starting from the original source (head unit) to the final destination (speakers) one piece at a time. Makes it much more easy for a simpleton like myself.
Posted: Mon Aug 20, 2007 11:19 am
by HoseHead
Or if your design allows, eliminate the processors and run signals directly from your HU to your amps. Prove the HU and amp and then re-insert each processor until you find the one that's acting up. A spare set of 6 ft RCA's allows connecting audio signals between devices unless your car is a limo......
HH