Page 1 of 2 1 2 LastLast
Results 1 to 10 of 15

Thread: Modding a Behringer MX9000 - is it worth it?

  1. #1
    Join Date
    May 2009
    Posts
    21
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    Question Modding a Behringer MX9000 - is it worth it?

    Sign in to disable this ad
    I have a Behringer MX9000 (and I realize that alot of people don't like Behringer). It has had some channels come and go while recording / rehearsing. I've even moved to other channels and they act dead sometimes. At any rate, I replaced the +/- 17v LM350's with LM338T's in the power supply, hoping to both stave off the well known failure but to hopefully help the issues that I've been having. To give some perspective, I only had 9 channels that were 100%... the others were acting dead or intermittent. I have used this mixer before and only had 1 dead channel. I will be trying the board out on Wednesday to see what works and what is dead.

    At any respect, do you think it is worth possibly fixing the dead channel, but instead of just fixing it to upgrade? I'm thinking about replacing the op amps with higher quality ones, possibly Burr Brown 4228's. I also would potentially replace any caps in the signal chain. If that works well then I'm debating upgrading a few other channels, say like 8 or so since all I really use are a max of say 16 channels at once and I have a couple of out board ART TPS mike pre's. Any thoughts?

    As an FYI, I send most of the channels direct out into my Fostex VF-16. I do mix down a few tracks to busses, but I try to keep that to a minimum. I also run an ART TPS with the digital out into the ADAT in on my VF16 and the analog outs into channels of the MX9000, but not mixed into the VF-16 analog wise. I have another ART TPS that I run into the MX9000 and send through into the VF16 that way. The only reason that I run the mike pres into the Behringer is because sometimes my drummer or I like to hear a different mix than what is going to the recording unit, so I use that separate mix either on an effects bus and route it into another pair of inputs, or just run the mains, depending on what all I am doing. All of my compression, gating, most EQing, and mixing are done on the computer on Cool Edit Pro after the raw wav files are dumped out via scsi from the VF16.

  2. #2
    Join Date
    May 2009
    Posts
    21
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    Exclamation

    Well, I see there's not much interest in this, so I'm going to just give some info.

    I put my newly upgraded power supply onto the board tonight and just did a quick check of the channels. I found only 9 dead ones, and of those only like 4 were 100% dead. The other 5 were extremely faint and the first stage volume knob didn't do anything... which tells me the pres are dead.

    So to make a long story short, I tore it somewhat apart tonight and saw that the OP Amps they are using are a SIP-8 package chip... NJM4580L's. So right now I'm looking for replacements for those. I'll let you know as soon as I find something. In the mean time I plan on finishing tearing it apare, but making it so I can power it up in its torn down state. From there I plan on trying to mod this with some better parts.... if I can find something in SIP-8 format, or something similar. There's not much room, so we'll see. I'll keep you posted.

  3. #3
    Join Date
    Aug 2005
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    Quote Originally Posted by sidecarjoeg View Post
    So to make a long story short, I tore it somewhat apart tonight and saw that the OP Amps they are using are a SIP-8 package chip... NJM4580L's. So right now I'm looking for replacements for those.
    Let's check http://cimarrontechnology.com/so8dip...rpn060301.aspx

    They have got a SO8/DIP8 to SIL adapter compatible with SIL devices such as JRC's NJM4580L

    See also how the modifications works on Tascam FW-1884 firewire audio interface http://tascamforums.com/index.php?showtopic=16793

    Let me known if it works, bye!

    Gabriele

  4. #4
    Join Date
    Dec 2009
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    Smile mx9000

    Hello people,

    I both a MX9000 second hand from a music store some year ago. First I thought I had missed some button that would enable some busses or something. Then I thought that I had poor cables. Now I know that I have just bought a piece of shit equipment that according to the authorized service center is not worth repairing, if it even is possible to repair.

    I really need at least 22 channels to connect all my gear and I don't have the cash to purchase a replacement in the near future. I'm very interested if anyone has made any attempt at doing the modifications as mentioned in this thread and could offer a guide on how to do it.

    Below is the status of my 24 channels for one month ago. It might be that more channels are affected now.

    Channel 1. OK
    Channel 2. No gain
    Channel 3. OK
    Channel 4. OK.
    Channel 5. No gain.
    Channel 6. OK
    Channel 7. OK
    Channel 8. Dead
    Channel 9. No gain. Low volume
    Channel 10. Ok
    Channel 11. Ok
    Channel 12. Ok
    Channel 13. OK
    Channel 14. ok
    Channel 15. OK
    Channel 16. Dead sometimes can be brought back to life.
    Channel 17. No gain
    Channel 18. Ok
    Channel 19. OK
    Channel 20 Dead
    Channel 21. No gain.
    Channel 22. Ok
    Channel 23. No gain.
    Channel 24. Dead sometimes can be brought back to life.

    And by the way according to Behringer there's less than 1% failure reported on these type of products so they don't have any quality problems at all!

    Best Regards
    Björn

  5. #5
    Join Date
    Aug 2009
    Location
    Ohio
    Posts
    17
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    I've got one. NEVER EVER had one problem with it.

  6. #6
    Join Date
    Dec 2004
    Location
    Sunnyvale, CA
    Age
    44
    Posts
    5,743
    Thanks
    0
    Thanked 5 Times in 5 Posts
    Rep Power
    3408652
    If you have a bunch of channels out, unless it got struck by lightning or something, my guess would be a dirty ribbon cable connector somewhere. Failing that, you might have a crack across the board somewhere. Take a close look, and if you see a crack, put some glue in the crack, then sand and solder each trace.
    Quote Originally Posted by Obi-Wan
    If you mod me down, I will only grow stronger.

  7. #7
    Join Date
    Jun 2009
    Posts
    3
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    Have you found out what was wrong with channels that had no gain?

    Thanks

  8. #8
    Join Date
    Aug 2010
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    Just thought I'd throw in my two cents worth on the subject. I love the capability that my MX9000 offers, but hate it's unreliability. I replaced the power regulators a while back and solved that problem, but still am battling the flakey channel syndrome that seems to plague this mixer. Several of my channels have no gain control functionality when the pad is engaged (or maybe it's the other way around?), and others seem to drop out unexpectedly, only to pop back in whenever the cable to the mic is unplugged and re-inserted (accompanied by a static pop sound). I've disassembled the beast several times and wiggled some wires, but that's about it. If I had a schematic I'd be more confident in trying to actually fix the damn thing.

    - Steve

  9. #9
    Join Date
    Dec 2004
    Location
    Sunnyvale, CA
    Age
    44
    Posts
    5,743
    Thanks
    0
    Thanked 5 Times in 5 Posts
    Rep Power
    3408652
    Quote Originally Posted by stevemcg View Post
    Just thought I'd throw in my two cents worth on the subject. I love the capability that my MX9000 offers, but hate it's unreliability. I replaced the power regulators a while back and solved that problem, but still am battling the flakey channel syndrome that seems to plague this mixer. Several of my channels have no gain control functionality when the pad is engaged (or maybe it's the other way around?), and others seem to drop out unexpectedly, only to pop back in whenever the cable to the mic is unplugged and re-inserted (accompanied by a static pop sound). I've disassembled the beast several times and wiggled some wires, but that's about it. If I had a schematic I'd be more confident in trying to actually fix the damn thing.
    That sounds like cold solder joints on the mic connector. Either that or plugging the mic cable in is physically torquing some board or cable in a way that makes or breaks a connection. Like I said, look for a cracked board, a flaky ribbon cable, or a connector between two boards that isn't fully shoved together.
    Quote Originally Posted by Obi-Wan
    If you mod me down, I will only grow stronger.

  10. #10
    Join Date
    Aug 2010
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    I guess I wasn't specific enough with my description. As I stated... "whenever the cable to the mic is unplugged and re-inserted", meaning (of course), the end of the cable away from the mixer (at the mic end)... and that's plugged into a snake cable, so there's no physical motion relative to the mixer. And yes, I've tried all possible combinations of mics, cables, inputs, etc. Certain channels just fuzz out on me and then drop out until I go through the disconnect/connect ritual, which usually does the trick. None-the-less, your final assessment is probably true. I'm guessing a flakey ribbon connector or switch contact.

    - Steve

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Behringer MX9000
    By JPXTom in forum Gear Reviews & Questions
    Replies: 7
    Last Post: 05-14-2007, 06:51
  2. Behringer MX3282A or MX9000?
    By Renascent in forum The Rack
    Replies: 45
    Last Post: 10-08-2005, 05:06
  3. Behringer MX9000
    By deepwater in forum The Rack
    Replies: 4
    Last Post: 01-28-2003, 13:03
  4. Behringer MX9000
    By Brian-Idol in forum Mixing Techniques
    Replies: 4
    Last Post: 10-20-2001, 11:39
  5. Behringer MX9000- anybody use one?
    By HogansHiro in forum Mixing Techniques
    Replies: 3
    Last Post: 01-14-2000, 02:38

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •