Originally Posted by staffcurtis
I have four subs that have dual 4 ohm coils. Each Behringer would be bridged to a 4 ohm load. Each sub would only need 1000 watts RMS per amp, and each sub would have two amps. The Behringer's would be running at half duty, so they would not be pushed to their limits. I would also have it setup where only one amp would be running normally, but when I had a movie on that required more bass, I could turn the rest on (sorta like class H technology on the physical level
). This would save my electric bill from all those amps just idling.
Let me know
4 subs = 4 physical cabinets
A) dual 4 ohm coils = 1 driver with a dual 4 ohm voice coil per cabinet?
or B) 2 drivers with dual 4 ohm voice coils per cabinet equaling 4 total voice coils between 2 drivers.
or C) 4 subs having 2 each 4 ohm coils so that would mean 2 amps per sub.
With 4 subs and 2 EP2500's per sub running in bridged mono mode, you will get 4800 watts per cabinet "according to specs".
With 4 subs and 2 QSC PLX 3602 amps, you will get 1 channel per cabinet for a total of 1800 watts per cabinet "according to specs".
Even with the EP2500 not able to produce 2400 watts at steady sine wave, it will still put out as much as a single channel of the QSC. You will get tremendous headroon using 8 amps and 4 subs with 2 4 ohm drivers per sub.
Using the QSC, you will not get as much headroom and you will not get the flexibility to turn off some cabinets when you are watching I Love Lucy reruns.
Redundancy and headroom with EP2500 PLUS
8 amps wiring complexity and electricity used MINUS
Efficiency and simplicity with 2 QSC PLUS
Lack of headroom, redundancy, and flexibility MINUS
That is how I see it. If you were going to choose between 4 EP2500's and 2 QSC's, I would 100% say get the QSC's, but 8 EP2500's affords so much headroom that the amp will be running well below its limits and ratings. The wiring complexity will only occur when you set it up and should not plague you forever so that is a "one time" minus. Using a lot of electrcity is an "all the time" minus unless you only turn them on when needed. If you burn up or damage an amp, you are only out 1/8 th of your system with the EP's, whereas you are out 1/2 of your system with the QSC's.
What do you think?