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Thread: Behringer DCX2496 -- dc power supply

  1. #51
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    Quote Originally Posted by scott_fx View Post
    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
    Vista will not be on my CarPC....it won't be on any PC of mine for quite some time...

    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!!!
    How did you have your Hippo DAC configured? Did you opt for all of the upgrades they offer?

    How did you like the stepped attenuator v. a non-stepped one?

    Do you just have the board or the board and pot? Is this your auction by chance? http://cgi.ebay.com/Twisted-Pear-Jos...QQcmdZViewItem
    Jan Bennett
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  2. #52
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    Quote Originally Posted by RedGTiVR6 View Post
    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...
    I want to clarify the idea that the Behringer is a balanced-signal ONLY piece.

    That is not the case. The input as well as outputs are equally suitable for balanced or unbalanced operation with the same gain. The reason for this is because Behringer uses servo feedforward circuitry. This means that the input gain will automatically increase when an unbalanced source is connected. Similarly, the output gain will automatically increase when an unbalanced load is connected. The gain increases in both circumstances are equivalent to a properly terminated balanced signal's dBv level (all else considered equal, as well).

  3. #53
    MySQL Error scott_fx's Avatar
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    here are some additional pics from my thread over at diyma. i hope i'll get some more but here is the 'main' board:

    [media]http://semi.noobing.com/DCX1.JPG[/media]
    [media]http://semi.noobing.com/DCX2.JPG[/media]
    [media]http://semi.noobing.com/DCX3.JPG[/media]
    [media]http://semi.noobing.com/DCX4.JPG[/media]


    i dont have a hippo dac, rather i have crystal dac eval board (122 s/n ratio, 192/24 bit, balanced output)
    http://www.cirrus.com/en/pubs/rdData...s43122eb-1.pdf
    thread discussing the unit:
    http://www.diyaudio.com/forums/showt...=&pagenumber=1

    as far as how i like the stepped attenuator...it's never seen a signal so i can't comment. i know it has a pretty good following over at diyaudio. the main reason why i got it was the fact that the pot is completely out of the signal path so you can buy a cheap pot and extend it as far away from the board as you want (the guys over at twisted pear tested it at 16 ft for me)

    http://www.twistedpearaudio.com/joshuatree/jt.aspx

    http://www.diyaudio.com/forums/showt...threadid=74224
    New System in progress:
    M10k
    Phaze TD1500 ~> Dynaudio MD130
    Phaze TD1500 ~> Seas g18rnx/p
    Zapco Ref 500.1 ~ 12" tc-9
    Behringer DCX2496 ~ Envision Electronics psu
    Transflective Xenarc

    My Car Pc Install
    My Boat Pc worklog

  4. #54
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    Quote Originally Posted by Dennis5587 View Post
    Hey envisionelec, I see that your viewing this thread... how those power supplies comming along?
    Very well. I (unexpectedly) received the boards about a week later than quoted due to a minor manufacturing error. I still plan to ship everyone's preorders out on Sept 21 (this Friday).

  5. #55
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    Quote Originally Posted by envisionelec View Post
    I want to clarify the idea that the Behringer is a balanced-signal ONLY piece.

    That is not the case. The input as well as outputs are equally suitable for balanced or unbalanced operation with the same gain. The reason for this is because Behringer uses servo feedforward circuitry. This means that the input gain will automatically increase when an unbalanced source is connected. Similarly, the output gain will automatically increase when an unbalanced load is connected. The gain increases in both circumstances are equivalent to a properly terminated balanced signal's dBv level (all else considered equal, as well).
    so layman's terms is taht you'll get 9v outs regardless if it's balanced or not?
    New System in progress:
    M10k
    Phaze TD1500 ~> Dynaudio MD130
    Phaze TD1500 ~> Seas g18rnx/p
    Zapco Ref 500.1 ~ 12" tc-9
    Behringer DCX2496 ~ Envision Electronics psu
    Transflective Xenarc

    My Car Pc Install
    My Boat Pc worklog

  6. #56
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    Quote Originally Posted by Dennis5587 View Post
    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...
    $50 here or there is not a concern. I'm comparing the DBX ($2200 retail + PSU modification) to this...

    If the Behringer cannot do what I need precisely, then no matter what the money savings, it's not an option.

    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?
    I don't run Road Runner. Either way, if you run bit-perfect and in some applications if you run optical output only, you cannot control the volume on the computer...no matter what program you're using - WinAmp, WMP, FooBar, iTunes, etc.
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  7. #57
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    Quote Originally Posted by scott_fx View Post
    so layman's terms is taht you'll get 9v outs regardless if it's balanced or not?

    Sure, if you can get 9V in (at 0dB)! I've not yet seen a headunit that can do this (no matter what the screen printing on the faceplate says).

    Hi Volt heads are great if you need them. Problem is - 2V heads work just fine if your downstream equipment is any good.

  8. #58
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    head unit...what's that?




    on a different note...you will only have the voltage out that you put in...so say I go with the Hippo HiFi USB DAC...which only has something like .5v output...means I'll only have .5v out to of the Behringer to the amps, correct?

    hrmmm....
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

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  9. #59
    Maximum Bitrate Dennis5587's Avatar
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    HAHA... have you seem the site?

    2006 Mazda 3
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  10. #60
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    the site....which site?
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

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