Potential new room, will this work well?

Dave,

I have a group of modes overlapping in the 60s and clustering in the low 70s frequency-wise. I know this because I have tried a couple of different speakers in similar positions in the room. Building a bass trap for those frequencies would require a bass trap way too big to be convenient (or sane).

I'm sort of stuck EQing unless I decide to abandon the Home Theater part of the room and get more liberal with speaker placement. I've been looking at some of the analog pro equipment used by Steve Hoffman in his system as potential solutions I could use. I do need something that can both add gain and take gain away from certain frequencies. Luckily, the pro equipment tends to have options that fall right on my problem areas. Rain has some a nice looking options as well, though I might just spend $300 on a Behringer to play around with first (I do like some warmth in the bass region). Also, it would allow me to change things on the fly, for individual recordings.

He will have a very sweet room if he makes it 39' or 31' on that longest room dimension (39' would be best to maintain room volume). I'm jealous of those 11' ceilings... I had to build all the way up to the joists to get 9'. I had steel beams to deal with, and steal support pipes, and a large iron septic output from the house that I had to enclose in a soffit closet. I can't complain though, because my wife let me have the room to do whatever I want to it.

Dave,

Here is one I'm heavily considering as well:

http://www.rane.com/peq55.html

It is around $800 and gives a very nice spread, as well as balanced I/O. I could even double dip and get two of them so I can PEQ more areas, if I want to later on.

Jkalman

Yes, looking at your Freq charts...your problems do look fairly EQ friendly. Your screen is very large, I can see the placement issues you may have with the side walls.

Still, nothing "that" major to deal with IMO. Aren't we lucky to have a wife that lets us play like this!

Dave

Dave,

Very lucky (I have a lot of friends who have no luck, none at all! Instead their wives have all the luck...).

I decided to buy the cheap Behringer Ultracurve Pro DEQ2496 just to pursue the idea of more expensive analog room correction in the future. The DEQ2496 is significantly cheap enough ($300 or so), considering all the options and features, to be a worthwhile experiment in my system. It also has an analog bypass so if the digitization sounds bad, adds some kind of digital hash noise, or hums, etc, I can just bypass it and only use it to get a sense of whether or not I will like the FR improvements. If everything goes well, I'll consider a permanent solution later on that is higher in quality (if this one has significant short comings) like one of the analog GMLs and retire the Behringer to my recording gear setup.

I can't do anything about nulls without an EQ, so aside from those the only really bad thing is that bass hump due to mode reinforcement. It is around +15 dB... Ouch!