Anybody have an actively multi-amplified system?

After using actively multi-amped systems for years(pro); I started doing it at home, in 1981. By then: I had my own shoppe building, modding and repairing pro and home audio speaker systems and electronics. My first home system used KEF drivers and Rogers LS3-5A crossovers(all matched) in the mains, an active X-over, built with DeCoursey Lab boards, and KEF B-139's, in sealed enclosures. Being a Hafler dealer; I used all highly modded Hafler(SS) gear, at the time. Sold that system, and built some 10" driver(Nestorovics), 8' tapered, folded transmission-line woofers, bought a Dahlquist DQ-LP1 filter and a pair of Acoustat Mod III's. Again- using heavily modded Hafler gear for power. Still have the same TL bottom end(now housing SEAS L26ROY
D1001's), a modded Hafler TransNova 9505, but using a modded TacT RCS 2.2X, Magnepan MG12qr's and Modded Cary SLM-100's. I'd love to go bigger on the mains, BUT- a costly divorce lost me a lot of listening area(in SQ FT).

My TNTs were just rebuilt/modified by Roy Esposito in Florida. He added fully balanced mode and mono capability. I've not had any prior experience with these amps. He was instrumental in developing the circuit being an engineer at Acoustat back then so he knows what's possible. All I can say is they are the fastest, most musical amps I've yet experienced. They are 'visceral'. A term that has not come to mind in describing an amp till now. However, Andy Szabo, another former engineer at Acoustat, uses modified 9505s also. He say's they are a significant improvement over the TNTs. I've not had any experience with this amp. But he's comparing to the stock TNT. Is there anything you can tell me in comparison? I need another amp for the 2405s or maybe something else for the bottom end.

Never have used the TNT amps. I started with modded DH-500's, and gave my last one(used to drive the 10's) to my son, a number of years back, when I bought the TransNova. I stopped using SS to drive my mains, decades ago, so- I can't really give an opinion of what the 9505 would sound like in that app. If you like the TNT's; I hardly believe you could go wrong with a 9505. Jim Strickland(another Acoustat alumnus)supposedly had much to do with it's design. Did the mods to your TNT's include replacing the rectifiers with HEXFREDs(or Schottkys)? Really cleans and opens the upper registers. Just something easy/basic/inexpensive and well worth the effort. Behringer X-overs work in cheap pro apps, but- I wouldn't use one for home audio(except for expermentation). I guess there are some out there, that mod them though.

I think Mr. Strickland was the main player. I had these amps shipped to Roy sight unseen so I can't speak to that question. I have a similar impression about the Behringers so I guess that's a given.

Csontos, I'd go with the DCX2496es personally, but it's your call. I've heard them, and they're not terrible, the soundstage is just somewhat flat and boring, and somewhat trebly. It's just the nature of the beast, being built in China with small power supplies, inexpensive op-amps, etc., but you can start replacing parts if you want. The Marchand looks a little too "garage made" for me, although it probably sounds okay. You do want accurate gain control and crossover points, left to right and woofer to tweeter, and the pots seem like they don't have very tight tolerances, so you'll do a lot of tweaking by ear. By the way all, as of the fiscal end of this year in Japan, which happens to be 9/20, Accuphase is dumping all parts for my analog crossover, so if I want any x-over modules I gotta get them now. Found out in just the nick of time. They've built it since 2001, but since then all their new models operate in the digital domain. Yes they're infinitely adjustable with no extra modules, but the down side is you go D/A out from the CD player, through a preamp to the crossover, which then re-converts A/D, does it's processing, then converts D/A once again. Supposedly the converters are pretty high end, but I still have a problem with 3 stages of numbers to sound, sound to numbers, and sound to numbers conversion. The battle continues...