Behringer DCX2496 -- dc power supply

**scott_fx** · 09-18-2007, 07:18 PM

http://www.diyaudio.com/forums/showt...943&highlight=

**RedGTiVR6** · 09-18-2007, 08:30 PM

ok - so reading on the web site and reading through the manual...and they don't even speak a word of this...

how many EQ points? how much adjustability on each frequency? which frequencies? adjustable frequencies?

what about xo points? there's just not much on these VERY important technical aspects in the manual or on the web site....which is a bit dissapointing as these are areas that are critical to determining if a piece is worth buying or not in this field.

reading through the manual it's painfully obvious that who ever wrote it has very little knowledge of audio and processing because many of the terms are swapped and are used incorrectly...hrmmm

**scott_fx** · 09-18-2007, 08:36 PM

there isn't any regulation on how many eq points you can have as many as you want. basically it has a certain amount of processing power. you choose what you need to. let me get you a better answer description...brb :-)

**scott_fx** · 09-18-2007, 08:52 PM

post 25
http://www.diymobileaudio.com/forum/...hlight=dcx2496
but that thread has a lot of good info too

**Dennis5587** · 09-18-2007, 11:45 PM

9 EQ points of adjustment, you can adjust each point + or - by .1db up to 15db frequencies are:

20
21
22
23
24
25
26
27
28
29
30
31
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323
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368
376
384
393
401
410
419
428
438
447
457
467
478
488
499
510
521
532
544
556
568
581
594
607
620
634
647
662
676
691
706
722
738
754
770
787
805
822
840
859
878
897
917
937
957
979
1000
1020
1040
1070
1090
1110
1140
1160
1190
1210
1240
1270
1290
1320
1350
1380
1410
1440
1470
1500
1530
1570
1600
1640
1670
1710
1740
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1860
1900
1940
1980
2030
2070
2110
2160
2210
2250
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2400
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2510
2560
2620
2680
2730
2790
2850
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2980
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3110
3180
3240
3310
3390
3460
3530
3610
3690
3770
3850
3930
4020
4110
4190
4280
4380
4470
4570
4670
4770
4870
4980
5080
5019
5031
5042
5054
5066
5078
5910
6030
6160
6300
6430
6570
6720
6860
7010
7160
7320
7470
7640
7800
7970
8140
8320
8500
8680
8870
9060
9260
9460
9660
9870
10100
10300
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12800
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16900
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19600
20000

If this gets copied anywhere, I want credit, cause this took a very long time to type in...

**envisionelec** · 09-19-2007, 12:05 AM

Originally Posted by Dennis5587

I'll take pics when I go home, the inside is virutally empty, there is just the power supply, which we swap out, the front pannel, which is most of the space, the rear pannel, and a small board for processing inside. You only need 3 of these 4, 2 of the 3 connects useing a ribbon cable, and the only other connection uses wires for power. Totally downsizeable.

On the downside, my amp is messed up

JL 300/4 amp

edit: You could also relocate the front panel to a more convienient spot... but it would be tricky splitting the panel up

Please keep in mind that taking the Behringer apart increases the chances for radiated noise to get into the audio circuitry. Particularly when you extend the ribbon cables - you must use shielded ribbon cables. You will end up with a constant high pitched buzzing in the audio which doesn't go away until you unplug the front panel. Of course, if you don't USE the front panel, this isn't a problem.

**RedGTiVR6** · 09-19-2007, 12:11 AM

lol - I downloaded the software and had a look-see.

Looks promising. I'm going to have to go out and copy down all my settings in the alpine currently and enter them into the software and see if it can handle all of the processing.

I'll be needing two of these things though so I can get 8 channels of output...which means each unit would only need to do 4 channels of processing, which means the processing power limitation might not be much of a concern.

So I'll be looking at around $830 for two of these things and then I've got to find somewhere to put them, then I'll have to custom make cables for XLR outputs...at 9v balanced out, that's 4.5v unbalanced...so not too much higher than the Alpine.

However, a great benefit I think I see is that for linearity purposes you can set adjustments based on volume level? I'm not 100% but it seems that way.

I'm planning on running a Hippo HiFi Bloat in this mix along with an analog POT...so it would look like this:

Computer -> USB out to Hippo DAC -> Analog Pot for volume on RCA out of Hippo DAC -> Analog RCA into Behringer -> process signal -> XLR out -> RCA into amplifiers

I'm going to have to see how the volume control before the Behringer is going to behave.

I'm not 100% about the D/A/D/A conversions in this chain though. Yes, I could get rid of the DAC and just run optical in according to some posts I'm reading, but then I can't have an analog volume control. Since the Behringer doesn't allow for volume control this is going to be very important. From my experiences, once you've set many mobos to optical out or you're running bit-perfect out, you cannot use any sort of volume control on the PC...naturally - because it is no longer bit-perfect at this point. So then, where would volume control take place?

This is a bit of a delima...

**scott_fx** · 09-19-2007, 12:20 AM

well, you can get your hands on a the audiocontrol mvc or two and control the volume after the dbx. apparently vista handles volume control differently then the xp's kmixer so you may still be able to control the volume via the computer:
http://www.diymobileaudio.com/forum/...ad.php?t=19568

if you want to control the volume between the dac and the you always can buy my joshua tree stepped attenuator :-) hell... you could by my dac too! i'd give you a deal!!!

**Dennis5587** · 09-19-2007, 12:20 AM

how you get 830?

I got mine for 269 at samash (A music store around here, but you can go anywhere that has pro audio)

so thats 538

Then the power supply's

120 each, thats 240

568+240=778, I'm sure you can get it for around that...

edit: anyway, what music software you run? If you run road runner with winamp, you can have roadrunner set to control winamps volume... that could work?