Sub Connections

2 Questions

I was wondering if I bought a 4-channel amp(xtant a4004t) and bridged one side to hook up to one sub(RF HE2, 12inch, 4 ohm) and the other ones bridged to two subs(JL W0, 12inch, I think 4-ohm).  would it be too much for the amp or not?  This is the first question.

The HE2 Sub is in a sealed box.  The two voice coils are hooked together with the positive coming in to the one coil, going out thru the negative into the positive of the other, then out the negative.  What is this wired in??  How many ohms.

sounds like the HE2 has its voice coils wired in series, so it is presenting a single 8-ohm load to an amplifier.

The a4004t will have its power output maximized by bridging the front channels and bridging the rear channels, and powering one of your jl subs by each bridged output.  It will put out 200 watts RMS per sub if wired up in this manner.

If this were a 2-channel amp, I would tell you to wire up the two jl subs in series, and the two voice coils of the HE2 in series, and then take both 8-ohm loads and hook them up in parallel.  This would let you bridge the 2-channel amp to a single 4-ohm mono load.

You can hook up the HE2's voice coils in parallel, for a single 2 ohm load, and then hook this load up to one of the amplifiers channels.  This would give the amp a 2-ohm stereo load, and only 100 watts RMS total would go to the HE2.  It will work, but that's really not anywhere near enough power for an HE2.  Also, if you hooked it up in this manner, you'd still have the remaining 3 amp channels to figure out.

Check your subs to verify that you've given us the correct impedence specs as that really is what is going to determine how everything is wired up. I don't think they ever made a DVC W0 but just double check to make sure it is indeed an SVC.