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PA setup help...speakers & ohms

Discussion in 'Amps and Cabs [BG]' started by baba, Feb 8, 2005.


  1. baba

    baba Supporting Member

    Jan 22, 2002
    3rd stone from the sun
    Looking at Yamaha's EMX5000-12 powered mixer.

    Scenario:

    Provides 500W @4ohms mono out of left jack
    Provides 500W @4ohms mono out of right jack

    I want to daisy chain two of the Yamaha S115V (8ohms) speakers out of left jack. Does this equal a 4 ohm load, hence 500W @4ohms over the two speakers?

    I want to daisy chain two OR three SM15V (8ohms) monitors out of right jack. With two am I at a 4 ohm load, hence 500W @4ohms over the two monitors? Can I add a third monitor to the daisy chain or will this drop it past 4 ohms and trash my powered mixer?

    Thansk for any wisdom.
     
  2. IvanMike

    IvanMike Player Characters fear me... Staff Member Supporting Member

    Nov 10, 2002
    Middletown CT, USA
    yeah you can only daisy chain 2 8 ohm cabinets per side with that amp (that will give a 4 ohm load per side BTW)
    running three 8 ohm cabs will give you a net impedance of 2.67 ohms and will most likley fry the amp and void your warranty.
     
  3. baba

    baba Supporting Member

    Jan 22, 2002
    3rd stone from the sun
    That's what I needed to know. Thanks.