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Old 04-25-07, 09:05 AM   #1 (Link)
Otto
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Any reason not to go to DEQ2496?


Hi guys,

I've been considering moving from the BFD1124p to the DEQ2496. I've read a number of the "what about the DEQ" threads.

In general, the 1124 has been good to me, but I'm looking for a couple features that I think can be had in the DEQ2496.

I enjoy listening to 2-channel music, and I've been using "bypass mode" for this. In bypass mode, both my mains and my sub receive the same, presumably unaltered, analog signal -- no bass management is applied. My mains are rated to 30 Hz, and they roll off somewhere above that, of course. I want to use the DEQ as a low pass filter, such that I can integrate my sub correctly with my mains (when they are running full range). I would use the "shelf filter", perhaps in conjunction with the graphic EQ to achieve a low pass filter. Any reason why this wouldn't work?

The shelving filters are offered at 6 dB or 12 dB per octave. And I believe the graphic EQ has a range of +/-15 dB. Does anyone know if these add when they are used concurrently? I think they should, but I have no experience with this unit.

I also like the concept of the dynamic filter application. Has anyone used this? I suppose I would have to take measurements at varying output levels and work to understand what type of response to set for those listening levels.

Has anyone felt limited by the bandwidth appliable to the PEQ? The BFD offers 1/60 octave steps while the DEQ "only" offers 1/10 octave steps. I don't use many filters with a really tight bandwidth, but sometimes it comes in handy -- probably because I'm trying to get my FR too flat.

I saw that there is a way to limit the amplitude range when using the RTA, but does anyone know if there's a way to limit the frequency range on the RTA? I think not; their FFT is probably set up to do the 61 bins in a one-way-only fashion, but that would be cool if you could see 61 FFT bins from 10 Hz to 100 Hz. Guess that's why we have REW.

Any comments from users? Does it sound different from the BFD?

I like the increased dynamic range.

I like the display better.

I'm OK to enter filters by hand.


-- Otto

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