Bridged Amp Channel Question?

[BTRs X]

I have an Alpine V12 Expert amp that runs (300wRMS x2 or 600W RMS x 1). It is pushing an Earthquake Magma 15 subwoofer(dual 3.2 or 3.3 ohm voice coils). When I hook the sub up bridged with a 6.6 ohm load, the sub constantly moves no matter if the volume is turned up or not. But if I put it on one channel or the other it plays fine........is there something wrong with my bridged channel? Need help soon. Thanks.

 

[WoodysX]

What are you saying? That it works when bridged but not when in one channel?

 

[BTRs X]

Both stereo channels work fine. The sub can be hooked to either one and works fine. But when I hook it up bridged.....it makes the sub vibrate without even the volume on or up.

 

[davesexplorer]

only thing i can ask is that, do you have it hooked up right? 1 pos one channel, 1 negative other channel, you wired it up in series so......just check your wiring i can make a diagram if ya want....good luck

 

[BTRs X]

Everything should be fine........Ive been doing this for awhile. A diagram would be great to double check with if its not a problem for you. Thanks.

 

[Kevex]

Does the amp have a crossover selector? and if so is it set to low?

 

[BTRs X]

It does have a crossover selector......but the last time I fooled with it I turned it off. I use my Pioneer Premier deck to control the x-overs.

Do you think the crossover would make the sub vibrate even if the volume is turned all the way down? Thanks.