Subs have less volume when i use both amps!!!!!HELP!!!


i had another thead on this same subject but couldnt get the help i needed....maybe this one will do better...

i have 2 L5 12 solobarics and 2 amps (600w rms each)

i have one sub on each amp

when i hook up one amp (either one) to the HU and set the gain its pretty loud, but once i run my RCA from the first amp to the second the sound is much lower....bout -3dB or more!!!

Glasswolf said i may have a sub out of phase but they are both hooked up in parralell and are in phase!!! my pos. is pos. and my neg. is neg.

what could be wrong....

do i have to reset the gain on an amp if i add another amp to the same RCA output on my HU???


david boker
Unregistered guest
what kind of head unit is controlling those amps? maybe the voltage on those HU outputs is low, and a lot of the signal is lost in the transition from the one amp to the other. get an eclipse HU and JL audio amps, much better!!!

Bronze Member
Username: Glasswolf

Post Number: 14
Registered: 02-2004
try using Y splitters instead of the pass-through of amp 1?
the gains should be set according to the line voltages.
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