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8 or 4 ohm on amp, when speakers 6ohm?

Discussion in 'AV Receivers & Amplifiers' started by Dudemeister, Mar 9, 2001.

  1. Dudemeister

    Dudemeister
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    Hi
    I have a Yamaha 596 reciever, which has a switch on the back where you change between 8 or 4 ohm, regarding which speakers you connect to it.

    Now my speakers all say 6 ohm in the specification.

    So what should I set the switch on the reciever to?


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  2. Dudemeister

    Dudemeister
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    Okay =P
    You wouldn't prefer to explain it alittle further?
    Well at least: Could it be dangerous to set it to 8?


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  3. Dudemeister

    Dudemeister
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    Thank you, much appreciated.
     
  4. Reiner

    Reiner
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    And if you read the manual then you will find that the 8 Ohm setting is for speakers with 8 Ohm or more while 4 Ohm is for speakers with 4 Ohm or more, ie 4 to 8 Ohm.
    At least the manual of my Yammy says so ...

    Since your speakers are 6 Ohm the second option is applicable.
    The switch is btw for the sensitivity of the protection circuit.
    If you set it to 8 Ohm it's most likely to trigger every now and then due to the reasons explained by the wise Confucius.
     
  5. Damian1978

    Damian1978
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    Hi,

    I have the Yamaha DSP-A5 with the main and surrounds being 6-8 ohnms and the centre is 4-8 ohms. Richer Sounds said I should leave it on the 8 ohm setting which seems fine and it never seems to get warm.

    Would it be best on the 4 ohms setting now?

    Thanks,

    Damian

    [This message has been edited by Damian Arstall (edited 10-03-2001).]
     
  6. General Skanky

    General Skanky
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    Speakers swing wildly between load extremes anyway.
    ie, my KEF Q15's go as low as 2 ohms at some frequencies.
    So judge by ear as to how it sounds.
    No amp is going to deliver anything like what is claimed anyway, so just use common sense.

    As said, you are merely determinig current delivery, and at that price bracket the speakers you have will present no problem at all.

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  7. RobG

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    I also have a yam DSP-A5, with AE120 fronts (8ohms), AE017 centre (6 ohms) and some old audio KEF speakers for rears (6 ohms).

    I too was worried about this impedance setting; I called both Acoustic Energy & Yamaha and both engineering said I should leave the setting at 8 ohms....

    Although by the sounds of it it doesn't really make much odds unless I try to shake the house apart, I'm still concerned that the techies working for the above mentioned companies have differing views to my honourable collegues here on the board....
     
  8. Spaceman

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    I have a question that about fits this subject. I have a Yammy RX-V1000 and use B&W305/302 speakers (8 ohms, 91dB). I want to buy Dynaudio Audience speakers (4 ohms, 86dB) for my mains and center and use the B&W305's as rear and the 302's as rear-center's.

    Does anyone forsee any problems because of the impedance and sensitivity differences? I can switch my amp between 4 and 8 ohm.
     

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