Anybody have an actively multi-amplified system?


Hello,

I am one of the very rare breeds that has a fully active system, 6 Jeff Rowland monoblocks running Klipschorns with an Accuphase F-25V electronic crossover in front of the amplifiers, and the passive crossovers taken out of the speakers. It sounds absolutely phenomenal, like nothing else out there. I've been in the business 35 years and have yet to meet anyone (in home audio at least) who has done something similar. It's done all the time in pro audio, yet nobody talks about it for home use. It's widely known that an actively amplified setup simply IS better than any passively crossed over speaker, since the dividing is done before the amplifier, each amplifier only amplifies a certain frequency range, and then the output of the amplifier is connected directly to an individual driver with nothing in between. If anyone has such a setup, is interested in learning more about one, or wants to throw in their 2 cents, please do! It's about time we did talk about this, and I can't believe in all these years more companies haven't actively (pun intended) embraced this type of setup. Also, if anyone has crossover cards for an F-25V crossover, please let me know!!!
crispy98006

Showing 1 response by ivan_nosnibor

In my own case, I just never did, at the time I was considering the idea, get past the extra cost and complexity (especially since I use a DAC, which have required an extra A-to-D and D-to-A conversion). And I'd be curious to know what kind of volume-control solution you came up with...I feel I eventually would likely have found one, but for me I knew it would neither be easy nor cheap...especially if resistor-based solutions (or better) were the goal, which they were for me. In the end I managed to get around some the performance disadvantages (actually in some quite unorthodox ways, as it turned out) of sticking to passive crossovers and a single amp per channel, but of course not completely so, as I'm sure you can imagine. Another thing, by way of the Behringer DCX that I was considering, was being able to digitally time align the drivers in my 3-way towers (no sub). I actually may still, at some point, rebuild my speaker cabinets so as to be able to do this physically, when I have the money and have figured out the last of the of the how-to's. But, after some point of looking into the idea of multi amping before your post, I did reach the realization that the potential for performance gain is unquestionably a real and valid thing. And I also can't say why it hasn't been discussed more than it has either, but I agree with you that just because manufacturers have dropped the ball on embracing the concept doesn't mean the rest of us have to - so kudos for being willing to help mark the trail and for starting this thread and I hope for everyone's sake others will join in. Good post. Regards. John