Does anyone use Lamm M1.1's in their system now?

With the Tenor OTL,you will need to be careful with impedance.An OTL driving a 4 ohm load,usually halves the power output.These are totally different beasts.The bottom of the Tenor is not as "controlled",but the top-end is more dynamic/extended..The Lamm will control the bottom,at the expense of the "ultimate" top-end.

These are terrific amps and you will need to go to a custom/non-commercial amp to do better.In absolute terms,the top-end is a little subdued and it won't flesh out every corner of the soundstage.It is extremely natural and will drive loads to 1 ohm-without a change in character.That being said,InSound builds monoblocs that will demolish it,in the very regions that it does so well.Brass,cymbals and upper octave ambience retrieval,as well as tonal color and texture in the mid/bass.The InSounds are 15W SETS and will never drive a 1 ohm load.But I don't need that,so the InSounds make me very happy-can't imagine better sound for what I paid {about $8500}.But then I couldn't imagine better than the Lamms,until I heard it.

The M1.1s were one of a handful of amps that I would consider buying.I had been a "tube" person for eons.The 1.1s were the first amps to give the tonal structure/color to the music,while still preserveing the control of solidstate.Talk about a huge soundstage,with good specifity of instrumental outlines.No not etched.Very slightly soft up-top,but not to a degree that made me search for other amplifiers.Extremely reliable.

You will be amazed at what 100w/ch pure class A operation will do.They sounded more powerful than a pair of Innersound mono ESL amps {600W}.Enjoy the Lamms ,should you perchase them {1.1,1.2,2.1,2.2}.