Hi Louis and glai,I have not had the amp in my system but I heard the Lamm and Cat in the same system.The Lamm is much more polite but the cat is more dynamic and with the sig. series has superb micro and macro dynamics and air and very natural timbre.In my opinion there is not much of battle,the cat wins hands down.I am refering to the cat jl3 sigs,but the jl2 sigs are very similar in sound.In my system I tried levinson 33 h,not my taste.Conrad Johnson and Mbl.If I had to pick one it would probably be the MBL.
Robert