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Is it OK to use 2 6ohm speakers as rear surrounds when the rest are 8ohm?

Discussion in 'Home Cinema Speakers' started by pez, Sep 9, 2004.

  1. pez

    pez
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    Sorry for the repost (this q is also in the amps section).

    the denon 2805 is driving the evo 3b 5.1 ive recently bought well (even the sub, which appears to have a problem...see the subs section).

    I went out today and bought some proper QED Micro and Original speaker wire to wire everything up, and was planning on picking up another set of EVO 1s for rear surrounds this weekend.

    in the meantime ive got some ok sony 6ohm 80 watt rated speakers lying around.

    can i connect those up to the denon amp (rated at 100w per speaker) even though the rest of the EVOs are all 8ohm and rated at over 100w?

    also, should the test tone and the auto setup of the denon amp be so loud?

    I thought it was broken the first time i ran it!

    pez
     
  2. Knightshade

    Knightshade
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    Hi Pez,
    You'll be fine with those speakers. I doubt the amp will put out the full 100W into each channel on 5.1 setup. Not entirely sure about Denon but most AV amps split that hundred watts per channel throughout the 5 channel range. Your amp may be different though. So it's worth checking.
    If your worried reduce the volume. I doubt you'll play loud enough to damage the speakers. Just means your amp will push a bit more power into them. It may sound a bit odd but you should be able to adjust the volume to them to counteract the extra load.
    Your amp should say what it's capable of driving for example:
    85watts per channel at 8 ohms.
    150watts per channel at 4 ohms.
    HTH
     
  3. pez

    pez
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    from the manual

    Surround back (which is where id like to connect these sony 6ohm speakers):

    100w + 100w (8ohm, 20hz - 20khz with 0.05% THD)
    135w + 135w (6ohm, 1khz with 0.7% THD)



    not sure what that all means, and i dont intend to drive the things loud, but i am a little worried about whether the auto test tones the denon amp outputs will be bad for them, as its very loud.

    pez
     
  4. Knightshade

    Knightshade
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    OK Pez,
    Just means you'll be (At full Load) be putting 135Watts into some 80 watt speakers. If you went to loud you could potentially damage your speakers. However at low volumes you'll be OK. I Can't help you with the test tones is there no way of stopping them?
    Your amp should be fine with 6 ohm speakers and won't be troubled by the mixture.
     
  5. pez

    pez
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    cheers man, going to switch it on now!

    wish me luck :smashin:

    think its gota be the battle of helms deep to test her out.

    pez
     

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