1. Guest,
    If you need help getting to know Xenforo, please see our guide here. If you have feedback or questions, please post those here.
    Dismiss Notice

Powering up an amp with a 12V trigger?

Discussion in 'Archived Threads 2001-2004' started by JohnSC, Aug 11, 2002.

  1. JohnSC

    JohnSC Well-Known Member

    Joined:
    Jan 12, 2002
    Messages:
    143
    Likes Received:
    0
    I am currently running a Rotel RB 991 to my mains and an RMB 1075 for my surrounds. I have constucted a 12V trigger for the RB 991 that is triggered via the 12V output from the RMB 1075. This works fine for me.

    Unfortunately, when I listen to 2 ch music, both amps fire up but I am only really using the RB 991. The RMB 1075 is on but is remaining idle.

    Is this a problem? Could I be causing any damage to the RMB 1075 or the speakers connected to it?

    J.
     
  2. Kevin. W

    Kevin. W Well-Known Member

    Joined:
    Oct 27, 1999
    Messages:
    1,546
    Likes Received:
    0
    Should have no problems at all since no signal is going from the amp to the speakers, unless the amp is causing the speakers to pop as it turns on.

    Kevin
     
  3. JohnSC

    JohnSC Well-Known Member

    Joined:
    Jan 12, 2002
    Messages:
    143
    Likes Received:
    0
    Kevin,

    How about the amp itself. Any problems there?

    J.
     
  4. Kevin. W

    Kevin. W Well-Known Member

    Joined:
    Oct 27, 1999
    Messages:
    1,546
    Likes Received:
    0
    I guess the only problem for the amp is that it would be getting turned on and off for no reason at all. Maybe and I say maybe down the road something related to turning on the amp may go. But I highly doubt that will happen. Does the 1075 have an input sensitivity mode? My 1066 is set to turn on when a strong enough signal is sent to the amp.

    Kevin
     
  5. JohnSC

    JohnSC Well-Known Member

    Joined:
    Jan 12, 2002
    Messages:
    143
    Likes Received:
    0
    Thanks Kevin.

    I am not aware if an input sensitivity mode on the amp. It only triggers via the 12 volt trigger.

    John
     
  6. Kyle_Y

    Kyle_Y Well-Known Member

    Joined:
    Nov 9, 2001
    Messages:
    250
    Likes Received:
    0
    I thought the 991 didn't have a 12V trigger input, can you please explain how you constructed a 12v input. I do not however think that any damage is being done to the 1075.
     
  7. JohnSC

    JohnSC Well-Known Member

    Joined:
    Jan 12, 2002
    Messages:
    143
    Likes Received:
    0
    Kyle,

    I have emailed you the instructions.... (thanks again to Sankar)

    John
     
  8. RandyRush

    RandyRush Well-Known Member

    Joined:
    Dec 11, 2001
    Messages:
    62
    Likes Received:
    0
    Maybe one of you can help me: I have a parasound HCA2003A, 3 ch amp powering my fronts;I connected it to my Panamax 5300 into one of the high power ports; it still won't go on and off with my system; not sure I understand the theory behind the "12v trigger"; suggestions?
     
  9. David-S

    David-S Well-Known Member

    Joined:
    Mar 18, 2001
    Messages:
    267
    Likes Received:
    0
    John, could i possibly get a set of those instructions?
    davids@vt.edu
    Would be appreciated!
    Thanks
     

Share This Page