Which Lamm should I add to the flock?

I have owned a lot of amps in over the past 33 years--most recently ARC Ref 600 Mk lll's at 600 wpc. I made an about face 6 months ago and sold them for Vladimir's ML 2.1 SET mono's at 18 wpc. I am using them to drive my Wilson X-2's. They do it with ease and plenty of headroom to spare. Having said this I can also comment that the ML 2.1's are the most musical amp I have ever owned. I don't see another amp purchase down the road even with Vladimir's upcoming mega amp the ML 3 SET which will have MSRP of $135K--rumored to be b/n 30 and 35 wpc.

As far a tube rolling I have recently bought 2 different pair of 12AX7's for the ML2.1's

I managed to get a pair of circa 1965 NOS Telefunken ECC83 with rib plates as well as circa 1957 Mullard's with long plate and square getter halo.

I was simply amazed at how different and much better the sound is comp[ared to the tubes supplied by Vladimir. The Telefunken's probably get the nod but the Mullard is also excellent--much warmer but not as much bass and less articulate.

Thanks Doc. I appreciate your input. The ML2.1's must sound wonderful. Don't know if I'll get simular results with just replacing one tube but I'm always looking for an improvement even if it's small. I was also thinking about the Telefunken's but don't know which one to try.

Elberoth2. If you find out anything specific to the M1.2Ref.'s please let me know.

Shure I will.

I found the best 6922s for Lamm Hybrids are the Amperex Pinched Waist 6922 and Seimens CCa. For some reason, I was not impressed with the Telefunken CCa. Power cords also make a significant improvement.

I've seemed to stay on the tube side of things and you haven't heard the ML2 until you actually do hear them with your own ears. When you do, you will be in for a shock to hear how un-hifi it is, with transparency beyond what I imagined from all the rave reviews. Timing becomes the very essence of the overall musical structure, add that with an ease of delivery and speed.

For me it all started with a preamp first, and then the rest of my system was broken or sounded wrong. Start small if you're not sure at first, get a preamp and experience a taste of what's possible. It's not for everyone (trying to be biased here) but if you like it, it will change the way to listen to music.

My system can play plenty loud, but I enjoy listening at very low levels, because nothing is missing, and it's simply there, why listen loudly?

With all that said, I have not heard the hybrid brotheren.