Is there such a thing as audiophile parametric eq?


My listening room is of awful dimensions (close to 1 x 2 x 4) and I've used treatments and bass traps to get the imaging and bass response to be very good. Yet there are some frequencies especially in the mid-bass that are very loud compared to everything else. I was considering buying a Behringer DEQ2496 after hearing rave reviews of what it can do in a home listening environment. Then I found out that the SPDIF I/O is optical and that threw a wrench into that plan. What I need is either a very good digital eq that uses RCA SPDIF or a very good analog PEQ. Any suggestions?
jlambrick
The Behringer is a kick ass deal. You cannot hear any problem using the toslink to a dac. As a matter of fact I know a guy sold his dac and after he got the DEQ 2496.
Restock: I do not have a reference, though I imagine that somewhere in the Harmon reference white papers it's there--just a matter of getting through them all. It's pretty common knowledge amoung acousticians regarding the phase shift. As to the averaging and positioning, you are correct. We always recommend you work with speaker position and listening position before calibrating the EQ. You will find that once calibrated it's better and just about all locations, even if you calibrated for only one spot. We've done tests with averaging and usually get worse results because it's masks a portion of the problem. This is not intuitive and not what we originally predicted. It was literally hundreds of calibrations and testing that led us to this conclusion.
I have 6 Behringer units in saveral of my systems. Never had a problem with any of them.
Rives, thanks for your comments. I will try to research some of the white papers. Your results for the averaging are very surprising indeed - not what I would have expected from a physics perspective.

Thanks very much!
Restock--yes the physics are surprising, and I'm a physicist, but if you look at the results individually of what's then averaged it makes sense. The averaging becomes a mask of some of the biggest problems. Because the biggest model problems also yeild the biggest nulls at a different location. When you reduce the peak, oddly enough the null is not as larger an aberation relative to the rest of the field. However, if you average those nulls in then you never deal with the biggest problem axial modes fully. It really does go against common sense until you examine it fully.