"If you have speakers with higher effeciency though the ML2's may be the best you can get."
I absolutely agree. IMO these are hands down the finest amp I have ever owned. The mid range and high end for my ears is as good as it gets. I would be surprised if I ever buy another amp. This is audio nirvana.
Dmailer...now you must take my advice and do some experimenting with the 12AX7 tube on each amp. I didn't know what I was missing until I managed to get NOS circa 1965 Telefunken with rib plates as well as NOS circa 1957 Mullard with long plate and square getter halo. This will take these amps to a completely different level