298,545 members
182,158 posts
  • New
    Newcomer - Level 1

    I am an endorsee and I see that a lot of things have changed. How can I get in contact with you?

    0 18
  • New
    Newcomer - Level 1

    I contacted the help desk in order to obtain a replacement power amp for for my BH250, and recieved an invoice indicating the parts that I needed, but so far (4 weeks later) nobody has picked up the phone in order for me to actually order the parts. I have left messages on their answerphone, but I've heard nothing.

    Does anybody actually work there?



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    0 21
  • New
    Newcomer - Level 1

    Hey! I'm really having trouble figuring this out and haven't found articles online related to it. I play e-bass and a Moog synth bass on stage and I need them both to be heard from my bass cab and run via a single cord for the sound guy. For this purpose, I was dreaming about running my e-bass to the "Input" of the amp, and running the Moog synth bass to the insert / effect loop so it would bypass the preamp of the amp. So far I ger both inputs working indivitually but once the effect loop jack is plugged in, the "Input" jack cuts off and signal from it is no longer heard. What might I be missing here?  Thanks!

    0 23
    • Oelmen
      TC-Mike Hi Oelmen,

      The FX Loop of the RH750 is serial like on most other amps too and this cannot be changed.
      What you can do is either use an A/B switching box to toggle between Bass and Synth input source or use a small mixer in front of your BH 750 in case you want to layer your Moog with your E bass.
      There are also A/B Y switching boxes with a parallel path available to switch or layer input sources.

      best regards, Mike
      • December 9, 2021
  • New
    Newcomer - Level 1

    I turn it on and it lights up a weird set of lights and does not play. It's stuck in this mode. Clip light, TubeDrive Light, E and A tuner lights, Flat tuner light and Power light are all lit solid. No sound.

    0 8
    • LukeAnderson
      Nigel67 Hi LukeAnderson. Please fill out a Technical Support ticket and we will be able to assist you in getting your unit repaired. This can be done by clicking on the support tab at the top of the page. A new window will open. Scroll down and click on the Technical Support tab and submit a ticket. Many thanks
      • October 31, 2021
  • New
    Newcomer - Level 1

    Hi , just bought  the above and having problem finding out what lead i need to buy to go from the head to cab . The ones I've bought dont fit!

    Can you help please?




    0 27
  • New
    Newcomer - Level 1

    Hi Lerum Hevitt here all is well but can anyone supply / find / point me in the right direction to help me get myself a schematic //service instructions for my beloved BH 500 amp head please.


    0 31
    • Lerum1
      Dale_M I am afraid we cannot share schematics with non partners we can assist with a non warranty repair via the support tab/Service if you require assistance.
      • October 22, 2021
    • Lerum1

      Hi Dale thanks for the prompt response but information not what I wanted to hear. Is your goodself an employee/ involved with the service/ repair centre. If so where would I take my BH 500 to. Any help much appreciated. Cheers

      • October 23, 2021
  • New
    Newcomer - Level 1


    I'd like to plug the XLR balanced output (post eq) of my BQ500 into a mixing desk (Mackie ProFX16v3), but need to enable 48v phantom power of the desk. 

    Does the amp have a built-in safety to allow that? If not, can I use an XRL to 1/4 cable or another workaround? Or do I absololutly need a DI box? 

    Thanks for your help! 



    0 17
    • Alxl29
      Dale_M Many thanks for your question, looking at the Mackie it has a global phantom power which activates all input regardless of needing phantom power or not, I cannot see any reference to any conflict caused in the QSG of the BQ500 so I will have to check with the designers and get back to you.
      • October 16, 2021
  • New
    Newcomer - Level 1

    I need a replacement knob for my TC Electronics RH450 bass amp.

    0 41
    • JayDodge
      Nigel67 Hi JayDodge. Please contact our spares department and they will be able to help you further. This can be done by clicking on the support tab at the top of the page. A new window will open. Scroll down and click on the Spare Parts tab and submit a ticket. Many thanks
      • October 11, 2021
  • New
    Newcomer - Level 1

    Broken Pot 

    0 22
    • Andrewdlevy
      Nigel67 Hi Andrewdlevy. Please submit a spares ticket and a colleague will get back to you with pricing and availability. This can be done by clicking on the support tab at the top of the page. A new window will open. Scroll down and click on the Spare Parts tab and submit a ticket.
      • September 27, 2021
  • New
    Contributor - Level 3


    Where does the toneprint circuit lay in the schematic of the amp, i.e. Pre or post EQ and does it come out of the DI socket ?




    0 15
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