NEEDED!!! Bi Amp Pros out there that can give me some advice

Rooms without treatment are for listeners not serious about their music reproduction. Rooms sound HORRIBLE with zero treatment. (no comments about my room has no treatment and sounds great, it just means you think horrible sonics sound great)

This is probably one of the most ridiculous statements I have read on here. Not that room treatments are a bad thing, but that can also be a rabbit hole waiting to happen. I have been there, done that, and bought the t-shirt with room treatments, and like anything else, if you plan carefully you can achieve very good results.

Now the idea of using a super amp is a sound one, but careful planning dictates that you need to get the amp/speaker match right. Not difficult really, some research and auditioning should get you there. Those who mentioned the use of an active crossover are providing sound advice when it comes to bi-amping. It is also the approach I took.

Roger Modjeski at Music Reference recommended the bi-amp approach to me with my Quad ESL 57 speakers. He actually sourced the 8" drivers for me and I built my own woofer boxes. I use a Luxman M-02 for the low end and a set of direct drive amps or OTLs for the top end. The active crossover is a Beveridge RM-3 that has low and high attenuators so you can adjust the gain accordingly. The low and high pass boards in the crossover are 100 Hz 4th order Linwitz-Riley. I have 4 small footprint woofers placed in an asymmetrical array around the room. Two can work as well. The array helps eliminate the room nodes. You can read more on the concept here:

http://www.audiokinesis.com/the-swarm-subwoofer-system-1.html

Also, please read the post by Roger Modjeski (ramtubes) on 9/2/2018 at 12:40pm in this thread:

https://forum.audiogon.com/discussions/autoformers-the-benefits-in-matching-amp-to-speaker

Roger is one of the best designers in the business and his experience in bi-amping has helped me achieve the best sound I have ever had in my system. Oh and BTW, once I set up my distributed woofer array I was able to ditch all my room treatments. As good as my room measured with treatments before the change, they measured better without them.

@bdp24 - Yes Eric I have what Roger now calls the Airspring woofer system. They are sealed 1.4 cu.ft. (internal) boxes with 1.4 cu.ft. Very small footprint in comparison to the Audiokinesis Swarm (which are also fantastic) and work quite well. When we exhibited at the Newport show a few years back Roger brought the system (he uses two woofers) and we were able to set up the room rather quickly. No monkeying with room treatments or anything else. Quite a difference from other rooms I have had to set up.

DSP was never an option for me. As Roger says why take an analog signal, convert it to digital and then convert it back to analog. I can understand why some folks like it and I'm not saying it doesn't work, just too many steps. It is good to see Roger posting here. Another voice of reason is just what this site needs to call attention to a lot of misinformation that exists here. Unfortunately his time is limited so he may not post as often as we might like. Fortunately for me I work with him and have good access to his knowledge.

Yer a lucky feller clio! I still come to the Bay Area occasionally (my Cupertino High School 50th anniversary get together is next month!), and plan on making it to Roger's place to hear his direct-drive ESL's when I do. Sounds like a "done" system to me!

Yes the direct drive amps are nice and Roger does use them in his home system. In the shop we just listen to whatever is lying around. I think right now it's a vintage Marantz receiver with some basic small monitors. The digital source is an old Sony ES model. It is actually a very nice set up.

Definitely let us know when you will be in town. You can come over and listen to my set up too. I have direct drive and OTL amps, as well as a couple different ESLs.