[Rob_McArthur]

I tried posting this under amps, receivers etc but got no replies so I thought I would try here.


I am considering changing from 2-250w sub plate amps that I have for two 12" Titanic subs in EBS enclosures to a Pro amp such as a Behringer Europower, QSC Crown etc. I also have a Behringer Feedback Destroyer, my concern is getting the same flexibility for adjustment for phase adjustement and whether this would be much of an upgrade. Should I consider having a second BFD? I would like to at least double my power to 500w a channel. The subs are located in the front and the rear of the room and my receiver is a Denon 3805. Thanks for any input.

 

[Jesse S]

Doubling the wattage will only increase your max SPL by 3db. Not worth doing unless you are actually clipping the plate amps.


As for a 2nd BFD, not needed. You can use the BFD in stereo mode to eq 2 subs separately. Just press L and setup the filters, then press R to setup the other sub. Then press both to have both enabled. Just be sure you setup the filters separately or it will copy the settings to both (called coupled mode).

 

[Rob_McArthur]

Does anybody have any input on how to adjust phase when using Pro amps?

 

[steve nn]

One option would be the SVS Bass Interface Box, adjusts subwoofer gain, phase, subsonic filter.... also known as the black box.

http://www.svsubwoofers.com/parts.htm

 

[cpu8088]

or reverse the polarity for a 180 degree phase shift