Jeff Rowland 302 or Conrad Johnson Premier 350

Jeff Rowland 302 was one of two SS amps on CES 2005 which I have found musical ! And I have some kind of aversion toward SS :(

Thf - 120 watts of Pure CLASS A Lamm power is deceiving.. I just took them over to a friends system powered by 400watt Parasound JC1 and max output was no different.
If you were really concerned get the 2.2's (I owned the 2.1's before I went to these special edition 1.1's as I found that even though I had was using 800watts into 8ohm EAD powermaster 2000 running only two channels, the Lamm had way more vice like control plus more warmth. I like the CJ warmth but wanted something more refined myself. Vocal and horns are amazing on the Lamm's, especially for me to put up with the Class A heat output these generate in Phoenix, AZ!

I've heard the 302 and it is liquid smooth like tubes but with a different warmth. I had to try the Rowland 501's to even get close to the output and control of the Lamm 1.1's I have (The Rowland 201's couldn't control the 3.4ohm woofer on my WP7's like the Lamm could). The 302 powersupply is much more capabable, and really in a different league

The Sonas Extrema's only look like 88dB effecient so unless your room is really huge the Lamm's will drive it without a problem and with ease!
http://www.stereophile.com/loudspeakerreviews/915/index4.html

Cytocycle- Yes the Extremas are 88dB efficient but the impedance is 4 ohms. They do go down to 1 ohm (according to the experts and I believe them) and when that happens, most amps including the BELs will run out of steam. While they are not difficult to drive, they do suck current like crazy. But when the amp's current supply is up to it, the Extremas can sound so sweet.

Thf: The lamms are stable to a short, he actually tests all amps by shorting them out.. the safety cicuitry kicks in and then in a few seconds it plays music again..

There is a reason they are so expensive.. the build quality and the sound! These can drive the big apogee's!

http://www.lammindustries.com/PRODUCTS/m12spec.html
Lamm M1.2 specs
Pure Class A hybrid amplifier producing 110 Watts into 8 AND 4 Ohms,
400 Watts into 2 Ohms,
600 Watts into 1 Ohm (continuous).

Low impendence settting produces an amazing! Most other Class A amps roll to Class AB after 4ohm and lower..

110 Watts into 4 Ohms (Class A operation).
220 Watts into 2 Ohms (55 Watts Class A operation).
400 Watts into 1 Ohm (27.55 Watts Class A operation).

If you needed more the M2.2 in high impedance
220 Watts into 8 Ohms (41 Watts Class A operation).
440 Watts into 4 Ohms (20.5 Watts Class A operation).
700 Watts into 2 Ohms (10.25 Watts Class A operation).
900 Watts into 1 Ohm (5.125 Watts Class A operation).

or in Low Impedanc (flip of a switch on the back)
220 Watts into 4 Ohms (41 Watts Class A operation).
440 Watts into 2 Ohms (20.5 Watts Class A operation).
600 Watts into 1 Ohm (10.25 Watts Class A operation).

Based on the specs I would go with the M1.2's

Cytocycle- Thanks for your very detailed effort. Actually, my first choice is the Lamm M1.2s. The only drawback is the heat. I will seriously look at them again before I make a final decision.