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"Polyamping" A Look to the Future or Fancy Fad?

In a recent quest for information regarding DIY speaker designs, I was referred to the Linkwitz Orion Project. These speakers employ active crossovers and it is suggested to give each driver its own, separate amplification (actually one for each woofer and one for the tweet/mid - three per speaker). Linkwitz recommends the ATI AT6012, a twelve channel, six zone amp (60W/ch). I am not sure about the merits of the ATI amp but, regardless of amp, does anyone think this will be a "growing" design. I mean I have heard the benefits of biamping and have heard tell of triamping but, in this case, "sextamping"? Octamping would seem to be next. All accounts say that the Orions sound fabulous. Perhaps I am just behind the curve. What so you learned folks think of this direction in audio?
4yanx
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swampwalker
5,138 posts
 
To get an idea of the power demands of driving a woofer to realistic levels, get an amp that has power meters. Forgetting whether or not they have a high degree of absolute accuracy, just put on a disc with a well developed bass line and crank it up some. You will see the meters barely move, until the bass line kicks in, then if the meters have a quick rise and decay, you can pretty much track the rythym with the meters, showing 10-100x more power requirement than the highs. I first saw this on a CM Labs 150 wpc amp I owned in the late 70s. Never had another amp w/meters, but it sure taught me the power required for accurate bass.
px25
31 posts
 
Having not read what the others have already stated, (sorry but I do not have the time), I will flat out state that the Orions, even driven by the ATI amps and entry level electronics, are among the best speakers in the world today. I was lucky enough to audition them in Sigfried's house and hear the magic first hand. I have worked within the high-end industry for the past 6 years, attended several CES shows, and heard several outstanding systems, including my own which retails for way to much money. Without a doubt, Sigfried's modest setup, in terms of ultra performance systems, is among the best of the best despite price. Active speakers require several channels of amplification, cables, etc, but is truly the best way to achieve realistic sound.
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slaufer
43 posts
 
I too haven't had the time to read this entire thread but have been thoroughly enjoying the Orions for several months with the recommended ATI amp. My comparisons with more conventional speakers and amps would be the Verity Parcifal Encores, Maggie 3.6s, and Talon Khoruses (old version), (though I've heard most speakers in the $5,000 to $16,000 range) driven by Edge NL 12 amplification as well as Essense amps. In my opinion, I have gotten more musical pleasure out of my Orions/ATI combo than any other system I've had and i have in no way felt the ATI amp inadequate even when compared to my prior amp which was $15,500. Spend more if you'd like but this combo is pure musical enjoyment.
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russbutton
429 posts
 
Linkwitz doesn't require that you run the ATI amp to drive
his Orion loudspeaker system. What he requires is that you
use 8 identical channels of amplification. His bass
drivers are mounted on an open baffle, so they can't handle
a lot of power. 60 watts per driver is about it. And you
certainly don't need to use more than that for a tweeter!

I'm planning to build a pair of the Orions and have cheaped
out by picking up 4 Hafler P1000, pro-style amps. They're
50 wpc and are 1U high rackmount pancakes. I've gone to an
all rackmounted system and these things mount in there with
plenty of room. I picked 'em up on EBay for an average of
about $140 each, so for a bit less than $600 got the
amplification I need.

Russ
eldartford
4,262 posts
 
4yanx...Of course the idea of an amp for every driver has been around as long as I remember, and I go back to the early 50s. However, your invention of the term "polyamplification" is a great leap forward!
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