Actually Greg, i would be "dodeca-amping" as i have twelve active channels being driven. To make things understandable, i have six stereo amps set up as monoblocks with all 12 of their channels being used. In other words, i have both channels of Amp A driving the left tweeters, both channels of Amp B driving the left mids and both channels of Amp C driving the left woofers. There is an identical set of amps ( which would be Amps D, E & F ) set up the same way for the right tweeters, mids and woofers. Even though i am using both channels of each amp, they are still only seeing a mono signal ( left or right, but not both ).
I've done it this way as i have multiple low impedance drivers in each frequency range. By splitting the drivers between multiple channels, i've reduced the low impedance load on each amp and increased the available power for each frequency range. In effect, none of the amps are pushed as much, they operate in a range that is Class A for the mass majority of time, damping is improved, dynamic headroom is increased, etc... to top all of that off, using the "monoblock" approach offers the ultimate in channel separation.
As Bear mentioned, i chose amps that i thought excelled in specific frequency ranges. Getting everything dialed in and gain matched was a "bear" to say the least : )
The drawback to all of this is that i have more cabling in this system than what most audio shops have in their demo rooms i.e. twelve interconnects from the active crossover to the inputs of each amp channel and twelve sets of speaker cables. Needless to say, it is next to impossible to make this installation look "clutter free" :( The fact that i'd like to move into a bigger house sometime in the near future does not make me happy either :( Sean
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