I only have experience with the Lamm 1.2 Ref. It drove Eggleston Andra 2's w/o any issues, controllung the big 12" woofer without sweat. FWIW, I would think both amps can drive all but the most demanding loads. So, the simple synergy aspect would be the one to focus on more I would think. The Ayre/ 5A combo seem to be making many a happy camper though. That said, I would certainly like to catch another listen to the Lamm's on my 5A's.
Is there life after a KXR? Help
I finally found the ultimate preamp. My own version of audio nirvana. The Ayre KXR. The trouble is I can't afford to keep it. So now I have to find a worthy successor. I'm especially interested in a tubed pre. If it has a great phono stage that's a huge advantage but not required. The rest of my system are Ayre MXRs, and Aerial 20t speakers. I've owned (and liked) an Ayre K-1xe, Levinson 380s, and I've tried using a Wadia system and forgoing the preamp altogether. I intend to buy something used. $10,000 is the top of my budget but I could eek out a tad more if I had to.