power amp, different ohms on sides

Discussion in 'Amps and Cabs [BG]' started by bill h, Apr 7, 2004.

  1. bill h

    bill h

    Aug 31, 2002
    small town MN
    I did a search on this but found nothing (lots of stuff on amps and ohms)

    I have a PV CS 8.5 to run my monitors for the back-line. One of the monitors failed, now I only have three of them for the back-line.

    Is it OK to run one side of my amp in parallel mode at 8 ohms (one monitor) and the other at 4 ohms (two monitors)

    The amp will run at 4 ohms just fine.

    Sorry if this is a silly question, I just don't want to have to buy more gear that I already have.
  2. No problem at all.
  3. kmacleish


    Nov 19, 2003
    Atlanta, GA
    Not a silly question at all.

    And the answer is, as long as your amp is comfortable with a 4 ohm load, it is not a problem.

    The only thing that you might need to be aware of is that (assuming that the monitors are all identical, and equal input level to both channels) the output level of the monitor run by itself on one channel will be slightly higher than the two monitors paralleled on the other channel.

  4. bill h

    bill h

    Aug 31, 2002
    small town MN
    Thanks guys, thats what I needed to know.
  5. inazone


    Apr 20, 2003