DCX2496 – compound XOs? - diyAudio
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Old 28th March 2008, 08:30 AM   #1
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Default DCX2496 – compound XOs?

Hi
Can the DCX2496 do XOs which start off 1st order, then increase to 2nd order? (I think they’re called compound XOs). I think it could

Situation:
I’m considering buying 2nd hand Apogee all ribbon speakers, and converting from passive to active XO, to gain sound qualityu using my two existing Aksa amps.

Replicating the existing slopes: 6 dB/ octave at crossover; some models switch to secondary slopes of 12 dB per octave at the crossover between the woofer and the midrange, some supposedly “gradually increase” (?) to 12 dB/ octave.

Thanks
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Old 28th March 2008, 09:27 AM   #2
Pano is offline Pano  United States
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Well, I don't see that in the menus.

But maybe you could by combining 1st order and EQs.
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Old 28th March 2008, 10:11 AM   #3
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I was thinking that, anyone know for sure?

Thanks
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Old 28th March 2008, 10:20 AM   #4
DAMIC is offline DAMIC  Seychelles
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Hi Otto,

Recently I found the best x-over point/alignment for my biamped Centaur/Minor's. Bessel slope 12dB/octave at 350Hz. As known, there is some overlap on the Bessel alignment, and accidentally I found some adjustments for the Bessel on Rane site, here is the link http://www.rane.com/note147.html

Actually the x-over points are shifted left and right multiplying with dedicated coefficient for 12dB slope, so for 350Hz, x-point for low pass is shifted to 275Hz and the other to 445Hz. My dsp/x-over is now set to these parameters and the integration is simply superb, specially as two different type of drivers are employed, ribbon and cone midwoofer. This new setting a lot reminds me to Apogees claiming about combination of 6dB/12dB crossowers in their designs.

Mine digital sound processor/x-over is a different brand, but I assume, you could try similar setting on yours DCX2496.
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Old 28th March 2008, 12:44 PM   #5
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I've wanted to try something similar. You are only able to select one LP, one HP, or one LP/HP filter per channel. It probably will be additional EQ (which I have found also adds phase delay).
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