Slam possible with Tubes instead of SS ??

Rrog personally I believe it is but notice that Ralph from Atmasphere is qualifying the use of a solid state on electrostatics as well.

Atmasphere is 100% correct. I tried 200 and 300 watt SS amps on my Soundlabs and needed more power! My other SS amps rated up to 300 watts per side started to sound tilted up in the highs and a little bass shy as I turned up the volume over 80db or so.

The wonderful Atmasphere MA1 drove my Soundlab speakers with very deep and powerful bass. The problem was in the highs where the SL's can dip as low as 2 ohms! To listen at sound levels above 90 db with ease I needed more OTL power. I would have loved to try the MA2's, but they were a bit to expensive for me with two in college :-)

In terms of sound the Atmasphere amps were clearly better and more nuanced then my current Sunfire Signature amp. However, the power of the Sunfire really worked nice with the A1's. This is why I am sure the larger MA2 amps would have been heaven. Maybe someday

Maggies may be similar to Soundlabs in regards to drive ability via SS or tube amps.

Were I to go the Maggie route again someday, I think a tube amp would be the ticket.

Grannyring imagine what the A1's would sound like with MA2's or MA3's what a great sound that must be;maybe I will head down to Atlantic City and see if I can get some $$$'s out of Trumps pocket.Did you consider a larger tube amp like a VTL,Vac,Audiovalve or Manley's?

Rleff, yes I did consider those as well as the Wolcott P400's. I could not afford both the A1's and those big tube amps right now. I decided to try a used Sunfire Signature for $1500 and I was and continue to be amazed.

I doubt any SS amp could make these SL's sing any better to be frank. I see one for sale for $1750 now. Mine, like the one for sale, is the original one that is 19 inches wide and weights more than the 2nd version. I modified it to accept an IEC. I also sent it into Rita's Repair Service (authorized Sunfire repair shop) to have it checked out. It did need new power supply caps and some other things. It cost me $375 plus shipping to do this, but I am good to go for years now.

All of these Sunfire Signature amps should go to Rita's as they do have to be updated with newer parts based on comments from Rita's Repair. Consider this in the purchase price. They were made in 1998 or so and the power supply caps seem to have a fixed life. Rita's puts larger caps in so as to avoid any future issues. They also double check to rail voltages to be sure the amp is in spec assuring great imaging etc...

Trust me when I say this amp is magic on our SL speakers. Not at all typical SS sounding. It is very rich and full bodied with wonderful stage size and what seems to be limitless power delivery. Bass is scary good and the music is simply beautiful. My seller paid for 1/2 the repair bill so in the end the amp cost me about $1500.

Bob Carver made a great one here and for the money it is perfect on my A1's.