Tube Amps Watts vs SS amp

VTL 300 Deluxe would work if you want tubes. Personally my AR-90s never really sounded that good with tubes. What you need is high current SS. I like Threshold myself. Using a 550E at the moment but my 300 worked well. I'd love a pair of SA/1 but need the coin.

wow lots of GOOD INFO, Thanks

Lots of bad info and misinformation too...

Atmasphere, thanx for the article. For certain humans are extraordinarily change resistant. That is an unusual perception for an engineer. Those that embrace change are the pioneers like Tesla, Ford, Musk and others less well known. Too bad non of them are politicians.
Under the power paradigm you want speakers of steady impedance and relatively high efficiency. How does Soundlabs achieve this with an electrostatic loudspeaker. My Acoustats drop perilously low at high frequencies. I had to put a1 ohm series resister on the primary to prevent my amps from overheating. I removed the stock transformer drive and put one large 1:100 Sowter transformer on them resulting in this behavior. Conversely I always shied away from McIntosh amplifiers because they used transformers. I am not sure how they use feedback but it would appear they applying the objectivity principle. I am sure you prefer not to make comments on other companies amplifiers but how do you think this affects their sound versus standard voltage driven SS amplifiers. My final question is, how do you keep your amps power driven without transformers. 
I have long forgotten what boxes sound like;-)

Atmasphere, one more series of questions. The Sensitivity measurement in db/1watt/1meter, is this measured with white noise? Does this really tell you how the speaker will perform with music? Is "music sensitivity"
frequency dependent. I roll off my speakers at 125 Hz 48 db/oct. My assumption has always been that the efficiency of the speaker increases because it would require less power to reach a certain volume than if I ran it full range. Is the correct or am I deluding myself? The sensitivity has not changed but efficiency increases?
The Soundlab Magestic 845 has a senstivity of 89db/1watt/1meter.
This means that it would take 128 watts to get to 110 db. This is the loudest playing music I would ever go. The MA 2 has sufficient power to do this. How would the MA 3 sound better. Some would argue that music being dynamic has peaks that go much higher than the steady state volume requiring much more power to handle without clipping.
Music obviously has peaks like the snap of a snare drum but are these peaks that much higher? The power required does increase
geometrically. The MA 3 will go about 4 db louder than the MA 2. Does this headroom make a difference?