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Silly questions about impedence...

Discussion in 'Amps and Cabs [BG]' started by JayAmel, May 19, 2003.


  1. JayAmel

    JayAmel Moderator Staff Member Supporting Member

    Mar 3, 2002
    Aurillac, France
    Hi,

    Please don't fool me, but I'm a bit lost with impedence questions... hey, I'm no techie...

    The SWR SM-900 head has the following specs :

    Stereo Mode (per side)
    400 watts @ 4 Ohms
    240 watts @ 8 Ohms
    144 watts @ 16 Ohms
    (minimum load = 2 Ohms)

    I'd like to know a few things, cause I'm completely lost.

    1/ If I wish to use a SM-900 on bi-amp mode, and if I use, say, a Big Ben (18", 8 ohms) and a Goliath III (4 x 10", 8 ohms), will I get 2x240 or 2x400 W ?

    2/ What if I use the same config, but with a 4 ohm Goliath III instead of a 8 ohm one ?

    Really sorry for these stupid questions, but at this time I'm not able to concentrate myself on this question of impedance... And also I'm not that familiar to bi-amping...

    Thanks in advance !
     
  2. JMX

    JMX Vorsprung durch Technik

    Sep 4, 2000
    Cologne, Germany
    1) 2x240; per side = per cab

    2) 1x400 and 1x240
     
  3. JayAmel

    JayAmel Moderator Staff Member Supporting Member

    Mar 3, 2002
    Aurillac, France
    Thanks JMX,

    That is what I was supposing, but as I explained, I was not sure at all... I believe I tried to find a complicated explanation in something that is pretty simple.

    The only thing that bothers me is to know that a SWR SM-900 can send only 240 W into a Big Ben... and so that it takes 2 Big Ben's to get 400 W of power on the low-end side...