I think we finally have this BFM system dialed in pretty close. We ended up moving things a bit, and now have two arrays, left and right, with three OTop 12s each, with the 3012HO and NSD:2005 in the OTops, bi-amped. We stuck the subs left and right, about 57 feet apart, and recessed them into the closets.
The only poor coverage is the first few seats in the front row, to the left and right of the center aisle, and a few seats in the very back row FOH left (there's an HVAC vent in the way).
All DSP is done by a dbx VENU360, and I'd be more than happy to post some screenshots of the different settings if it'd help someone else.
We had to go cheap on the amps, and the subs are powered by an EP4000, and the tops are powered by EP2000s. We don't run it super-hot, so it still puts out pretty well.
I set limiters very conservatively to give us a little extra space, just-in-case, and I can easily run the board into the yellow, outputting around 105dB - 110 dB, and it still doesn't hit the limiters.
Anyhow, here's a video (it's a good thing I'm NOT a surgeon or I'd have a lot of lawsuits filed against me):
Thank you everyone for the help for this noob, specifically James Champer for coming out and encouraging us to go for it with the OTops, Brent Evans for generously answering my questions and incessant PMs, Bruce Weldy for some spare diaphragms for the NSDs before they went totally out of style and a few phone conversations, and of course, Bill Fitzmaurice for the plans/designs and the Yoda-like wisdom.
Re: OTop 12 J Array x6 Build
Posted: Tue Jul 30, 2019 5:38 pm
by Bill Fitzmaurice
Excellent job. The uniformity across the room is superb.