Thoughts on using the Behringer DEQ2496 for room correction

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Originally Posted by Mike Anderson

^^^ Were you using the Behringer entirely in the digital domain?

I feed a digital signal into the DEQ, process it, and take a digital signal out. No conversion to analog.

If you're using it partly as a DAC, I can see how your results would be different.

My DAC is a Benchmark DAC1, which is undoubtedly of much higher quality than the Behringer's.

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Hi Mike,

I see nothings been posted on this in a while, hope you're still checking here.

In regards to using the EQ in Digital Domain, is that the only way it's going to sound great?

I was planning on connecting it between my preamp and amp. I have a Sony XA777ES CD, Moon P-3 preamp and Digital Amplifier Company 4800a Amp.

Sounds like maybe I won't get what I'm looking for if connected in this manner via Xlr's.

Don't want to bypass the Sony's DAC.

Thanks
Charles

When I read how difficult the system is to setup and the quality you get, it seems that Audessey is really on to something with their room correction system. You plug in the mike, and the Audessey does all the work. No special setup parimeters, no quirks, and most importantly, no extra hassels in the process.

This seems like too much work for a automated room correction system

Wanted to add a couple thoughts here to the instrtuctions as I found a number of things that were both a little hard to fathom and at the some time not easy to work out via the manual and available help threads.

First, I did update the firmware to version 2.5 ... I cannot say it made a big difference in my problem but it was not hard to do so it may be worth a try.

If you want to give it a go the following is a good link and worked well for me

http://www.icycolors.com/nu9n/deq2496.html

Next up was the need to setup the sync rate for the main out in order to use RTA. and auto correct. Its critical and messed me up for a couple days. Bottom line I am fiber in and fiber out to an external DAC/Pre combo. The best the older unit can do is 48 not 96. The main out will set itself to 96k and you will get nothing out in terms of pink noise when you go to calibrate.

As it kept resetting itself it took me a while to catch on and make sure I set it saved it and then moved on to RTA.

Thought it might help someone as it drove me a bit nuts.

I can't really comment on the quality of the ADC/DAC as I now only use the digital portion of the Behringer DEQ2496 but when I did use it when I played vinyl I found the sound enjoyable. In addition the ADC/DAC in the Behringer DCX seems to be highly thought of, as the maker of VMPS speakers uses this for digital crossovers.

I recently moved my system to another room and so had to go through the whole process again. However in addition to Mike's routine, I used the RTA and warble tones from a CD to equalise the frequencies below 100Hz.

Once I had a flat curve for both speakers independently, I played pink noise through both speakers and measured the result through the RTA. What was particularly noticeable on the first test was a 9dB dip at 5kHz and surrounding frequencies, yet on individual speaker measurements, this area was flat. Eventually I found that a 5dB boost on both speakers at 5kHz using a 7/3 octave band did the job. I've no idea why this dip appeared as I changed nothing else (you can adjust the frequencies of both speakers at the same time when in GEQ and holding the 'A' button for a short time until both speakers are highlighted and the readings for both appear on the graph).

I then added the various suggestions to get a likeable sound.

Mike, I would be interested to hear what you have to say about the DEQX and if it is worth the extra money. It's something I've considered. Indeed a supplier here in the UK can hire them out for a week or so to see what people make of it.

Quote:

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Originally Posted by Hipper

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Mike, I would be interested to hear what you have to say about the DEQX and if it is worth the extra money. It's something I've considered. Indeed a supplier here in the UK can hire them out for a week or so to see what people make of it.

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It would be nice to hear from Mike who as been MIA for a long time.

Resurrecting this thread!!!

I haven't been on this forum for a while but I did just pick up a DEQ2496. I haven't gone through the setup process yet but after reading the manual, then this thread, then the manual with this thread, then the link provided to the icycolors website I'm a bit confused!

I want to use this unit to iron out my system's frequency response. I was under the impression that all I would have to do was run the AutoEQ function with RTA and the ECM8000 mic, perhaps running through from a few locations within the room, and be done with it.

Mike's (who has since moved on apparently) instructions say to run through the GEQ/PEQ settings and make initial changes before running AUTO EQ?

The icycolors link seems to indicate that several adjustments need to be made to the unit before doing anything else in order to get it to output a proper signal from the get-go?

My system is simple: AIFF files played through iTunes on and iMac that's connected via optical to the Behringer which is connected via optical to a Benchmark DAC1 which is connected to a pair of Dynaudio BM5AmkII active monitors via balanced XLRs. This is a nearfield setup in a small room (11'x10'x9')

Any clarification would be greatly appreciated.

Thanks,
Bill

Resurrecting this thread!!!

I haven't been on this forum for a while but I did just pick up a DEQ2496. I haven't gone through the setup process yet but after reading the manual, then this thread, then the manual with this thread, then the link provided to the icycolors website I'm a bit confused!

I want to use this unit to iron out my system's frequency response. I was under the impression that all I would have to do was run the AutoEQ function with RTA and the ECM8000 mic, perhaps running through from a few locations within the room, and be done with it.

Mike's (who has since moved on apparently) instructions say to run through the GEQ/PEQ settings and make initial changes before running AUTO EQ?

The icycolors link seems to indicate that several adjustments need to be made to the unit before doing anything else in order to get it to output a proper signal from the get-go?

My system is simple: AIFF files played through iTunes on and iMac that's connected via optical to the Behringer which is connected via optical to a Benchmark DAC1 which is connected to a pair of Dynaudio BM5AmkII active monitors via balanced XLRs. This is a nearfield setup in a small room (11'x10'x9')

Any clarification would be greatly appreciated.

Thanks,
Bill

Hello Bill.

I hope this is not too late.

I bought my Behringer DEQ2496 in 2004 and have software version 1.4. As far as I can tell from the icycolors site there doesn't seem to be a great deal of difference between this and the 2.5 version.

Anyway, your question was about setting up the DYN pages as described by icycolors. This is new to me and I've never done it. I only worked with the GEQ and PEQ but none of the other options.

You will get good results that way. I may investigate this DYN suggestion but I'm not worried about it and at the moment anyway, I don't understand it.

I would suggest that, as you are using a nearfield set-up, as I am, you put the microphone exactly where your ears will be. I just pointed it straight ahead.

Thanks Hipper! I haven't had as much time lately to fiddle with it but after running through the process a couple of times and consulting this thread and the manual I think I've gotten a handle on it.

I'm sure once the hot humid weather sets in and I search out some air conditioning I'll mess with it more.

Bill