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  • Behringer DCX2496 Crossover Configuration Questions

    I have a Behringer ULTRA-DRIVE PRO DCX2496 that I want to configure as follows.

    Amp 1 - full range (not filtered at all - speakers have passive xovers in them)

    Amp 2 - full range (not filtered at all - speakers have passive xovers in them)

    Amp 3 - just allow low freq (I'll get the ranges) to a set of bass bins.

    I have a usb to serial cable but haven't attempted to get it to work. I heard they can be touchy. Heard it's easier to configure using the software then using the control panel on the device. I'm game either way though.

    I also need to pick up a pcmcia memory card to store my configurations. (they shouldn't be changing anytime soon) Any recommendations?

    Anyone familiar with this crossover who can help save me a lot of trial and error? I downloaded all the software/updates from the support site.

    http://www.behringer.com/EN/Products/DCX2496.aspx

  • #2
    Re: Behringer DCX2496 Crossover Configuration Questions

    Set 1,4 and 2,6 to have infinite Freq. i.e. 20-20K

    Set 3 & 6 for your low freq.

    BTW, I'm not sure if you need that card to store your settings. I think it has a bit of RAM onboard. I store several at a time on mine.

    I can walk you through the panel settings.

    Blair

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    • #3
      Re: Behringer DCX2496 Crossover Configuration Questions

      I'll bring the gear inside and will post when it's in front of me. The subs are a older set of EAW SB 150's that I got for free. I'd like to use them if possible for a halloween party I'm having.

      Frequency Response (Hz)
      3 db 33 Hz to 300 Hz (43 Hz w/out CCEP)
      -10 dB 29 Hz (32 Hz w/out CCEP)

      If thats accurate.

      http://www.eaw.com/info/EAW/Loudspea..._datasheet.pdf

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      • #4
        Re: Behringer DCX2496 Crossover Configuration Questions

        Use the serial cable! It makes the DCX a breeze to configure and you can store an infinite number of setups on your computer. You have to watch what com port your OS assigns to the serial/USB adapter. Mine will only connect with the DCX when assigned to certain ports. Port 3 has always worked for me on either of my 2 laptops.
        Co-conspirator in the development of the "CR Gnarly Fidelity Reduction Unit" - Registered Trademark, Patent Pending.

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        • #5
          Re: Behringer DCX2496 Crossover Configuration Questions

          Like blair, I never needed a memory card to store settings. I never got my computer to hook up either.

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          • #6
            Re: Behringer DCX2496 Crossover Configuration Questions

            Don't need a memory card. Plenty of space to store configs. I'm using a usb to serial adapter. With the Omni Mic on the laptop with the Beringer interface, setup is a breeze and it's fun to see the effects in real time.

            Cheers
            Dennis

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            • #7
              Re: Behringer DCX2496 Crossover Configuration Questions

              I'm running whatever firmware/software that came with this device. Any point in updating (if I'm not current)

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              • #8
                Re: Behringer DCX2496 Crossover Configuration Questions

                I've been running one for... wow, 6 years? 7 years?

                The internal memory is good for ~30? settings.

                The best thing you can do is to page through all the parameters and play with them. Some of the dynamic eq and dynamic compression/limiter settings can get a little weird if you're not used to them, but for home audio use they are mostly not used. I used them when running an open baffle (well, it was weirder than that) sub, to protect the drivers and amp.

                I found it was VERY instructive to change the crossover types, re-set the levels (3 ways, so the mid level changes depending on the filter type on the w/m and m/t) and polarity, and listen for the changes in perceived sound. To do it right you really need to adjust the crossover frequencies too, or you'll destroy drivers. So instead of re-soldering some components, or building multiple crossovers, all I have to do is press a couple of buttons to recall a different setup.

                Best sounding but lowest power/spl capability setup is 6dB/octave. Best power/spl handling is 24dB/octave. Decent compromise has been 12dB/octave.

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                • #9
                  Re: Behringer DCX2496 Crossover Configuration Questions

                  Ok, I got the thing working with the serial cable. Not easy to do since computers don't come with serial ports anymore.. but anyway..

                  I'm going to play with the settings some, but feel free to chime in anytime.

                  Configuration I need.

                  Source -> Mixer -> DCX2496

                  out 1 -> amp 1 -> completely unfiltered - full range
                  out 2 -> amp 2 -> completely unfiltered - full range
                  out 3 -> amp 3 -> EAW SB 150's

                  3 db 33 Hz to 300 Hz (43 Hz w/out CCEP)
                  -10 dB 29 Hz (32 Hz w/out CCEP)

                  I'd like to set everything and save it. I'll be able to test it tomorrow during the day and make any changes I need then.

                  Amp 1 & 2 are running to speakers with built-in xovers. I don't want any filtering done at all. Amp 3 is driving a couple sub boxes.

                  Thanks for whatever help you can give!

                  Comment


                  • #10
                    Re: Behringer DCX2496 Crossover Configuration Questions

                    Originally posted by joshag View Post
                    Ok, I got the thing working with the serial cable. Not easy to do since computers don't come with serial ports anymore.. but anyway..

                    I'm going to play with the settings some, but feel free to chime in anytime.

                    Configuration I need.

                    Source -> Mixer -> DCX2496

                    out 1 -> amp 1 -> completely unfiltered - full range
                    out 2 -> amp 2 -> completely unfiltered - full range
                    out 3 -> amp 3 -> EAW SB 150's

                    3 db 33 Hz to 300 Hz (43 Hz w/out CCEP)
                    -10 dB 29 Hz (32 Hz w/out CCEP)

                    I'd like to set everything and save it. I'll be able to test it tomorrow during the day and make any changes I need then.

                    Amp 1 & 2 are running to speakers with built-in xovers. I don't want any filtering done at all. Amp 3 is driving a couple sub boxes.

                    Thanks for whatever help you can give!
                    If I wasn't going to process my outs 1&2 with the Behringer why not just bypass them directly to their respective amps. Use the Behringer to process out 3 as needed.

                    Dennis

                    Comment


                    • #11
                      Re: Behringer DCX2496 Crossover Configuration Questions

                      I'm coming off a 1 output mixer. Normally this works fine when just using a standard setup like source - mixer - amp - speaker (with built in xover). But since I'm bringing on 2 more amps and more speakers this seems to make sense (and that's what this crossover was made to do). Either that or I have to get a bunch of Y-adapters and split everything off the back of my mixer and then still use the crossover anyway for my extra subs.

                      Why wouldn't I just run everything through the crossover, push what I need through unfiltered, have better cable management and just filter the outputs that are going to my subs? Isn't that what this piece of hardware that I already own is made to do? (filter as needed/where needed)

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                      • #12
                        Re: Behringer DCX2496 Crossover Configuration Questions

                        Played with the software some, created some settings and was able to upload them to the crossover. Here's what I came up with, let me know if I'm on the right track.

                        Outputs 1,2,4,5 should be wide open? 3 and 6 are set to sub-woofer and I think I used the right ranges for the sub I'm using. Is that correct? Any recommended changes?

                        I'm not really sure if I have these set right. Should I set them at 33 Hz? 30? 29? Or should I be higher.. 43? Should I be playing with the dB setting on the bottom?
                        3 db 33 Hz to 300 Hz (43 Hz w/out CCEP)
                        -10 dB 29 Hz (32 Hz w/out CCEP)


                        1


                        2


                        3


                        4


                        5


                        6

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                        • #13
                          Re: Behringer DCX2496 Crossover Configuration Questions

                          I'm guessing their CCEP has some EQing going on, but without knowing what the transfer function looks like, you are flying blind in the regard. They spec a HP of 25Hz at 24db/oct in the pdf. Your LP is really high for a pro sub box. Most people cross much lower - like 80 to 120 Hz. If things sound boomy, it's probably the subs trying to play too high. Use the output controls at your own discretion. I use them with our rig, boosting the level coming in. There has been some discussion about limiting the effective bit depth when attenuating the inputs & outputs. Not sure if anyone has done testing on that theory though.
                          Co-conspirator in the development of the "CR Gnarly Fidelity Reduction Unit" - Registered Trademark, Patent Pending.

                          Comment


                          • #14
                            Re: Behringer DCX2496 Crossover Configuration Questions

                            I'm really just learning so forgive me for asking questions that may seem trivial.

                            So I have them reversed?

                            Start with these changes and see how it sounds?

                            LP Filter - 80-120 Hz (currently at 296?)
                            HP Filter - 25 Hz (currently at 30?)

                            And just play with it from there and see how it sounds?

                            Thank you for the reply btw.

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                            • #15
                              Re: Behringer DCX2496 Crossover Configuration Questions

                              With that in mind.. do I have all my settings backwards for HP/LP on the outputs that I want wide open?

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