Thiel Owners

jthifi - Stasis was the or among the first Pass designs. Its sliding bias and resulting internal stability obviated the need for global feedback. It is very linear and musical and as mentioned, Thiel used the Stasis 400A (last 70s) as one of its development reference amps.
As time went on, Nelson's topologies became more and more simple, direct, minimalist and with very high quality components. In my opinion they rival the best in the world. The S-300 will not have that extreme finesse associated with later Pass designs. But at its bargain price it will out-do much of what's out there at any price.

Wow!  Stumbled on this thread several weeks ago and was hooked.  Thx to the many contributors but especially jafant and Tom Thiel!   Sorry for the long post however looking for some input.

I purchased a store demo set of Thiel 2.7s (serial numbers 095/096) almost four years ago.  One of the mid-range/tweeter drivers went on one speaker about 6 months later.  The local shop from where I purchased it took it out and sent it back to Thiel? at the time.  Not sure if I got a new one or repaired however I haven't had a problem since.

I fell in love with the speakers at the store when they were hooked up to a Rogers EHF-100 amp.  I purchased both demos.  Unfortunately when the system was installed at my house by the dealer, the Rogers developed a problem.  Was sent back to Rogers but that spooked me so I looked for alternatives.  (I still have a Rogers amp on my list of potential purchases...loved the tube sound with the Thiels.)

Ended up trying the Thiels with a Bryston B100 SST2 integrated amp.  In my listening room at the time it didn't have enough power so I purchased a B135 SST2.  Worked nicely in our previous home.

At our new place, the system doesn't sound as good.  Working with my local dealer re: room treatments but would be interested in the group's perspective.
Room measures 16' x 15" for one part and narrows down to 13' 8" for another 10'.  So from "end to end" the room is 26' with one part being 15" wide and the other part 13'8" wide.  (Speakers are at the wider end of the room.) The ceiling height is not ideal:  7' 6" in most places but on the left side b/c of duct work, comes down to 6'4" and 6"11.  Exit out of the room is through french doors...into another large part of the finished basement.  Two large rugs cover most of the floor with assorted wall hangings (canvas painting with batting behind the canvases) to help deaden the sound.

Speakers are about 2' 2" away from back wall and 45" from side wall for left speaker and 40" for right speaker.  Seated about 9' from speakers.  Am trying to move speakers out a bit more however constrained by fact that the room also serves as the home theater (separate 7.1 system) so the sofa/seating area can't be too much further away from the tv mounted on the rear wall.

Have been advised that I should install 4 2'x'4'x1" ceiling panels, 1 2'x4'x1" panel behind each speaker, 1 2'x4'x1" panel along each side wall at first reflection point and 1 2'x2'x1" panel at each reflection point on the rear wall (in other words, on either side of the double french doors leading out of the room).

Based on above, am curious re:
1.  should I proceed with room treatments?  If so, would like to do in phases...starting with ceiling.  And then perhaps add the other panels.  Does that make sense?
2.  Based on email exchange with Bryston (and input from Bob Gillum in 2015 before purchase), the B135 should be fine with the 2.7s based on my listening preference (moderate volumes..75-85 db).  I see most of you have much more powerful amps...should I address this first?

Thanks for your input and look forward to following your journeys through this forum.

hi Paco and welcome.   i have owned Thiel speakers since 1985 and have had four sets of the two series ending with the 2.7's.  Now have the 3.7's. However for the past 20 years or so,  regardless of speaker, i have been sitting in the same spot.  you did not mention how far apart you have your speakers but i have mine about 3.5 feet from the back wall and they are roughly 9' apart from tweeter to tweeter,  and about 7' from my ear.   I believe in nearfield listening as it ameliorates  a lot of the room issues.  I still use room treatments but not a lot.  Before you start trying all those room treatments,  try moving into a different position as i think 9' is a long way to be from the speakers unless they are very far apart.  Also make sure your ear is below the tweeter,  not above.  this is just a starting point for you.  one suggestion: buy a spare mid/tweeter from Rob. Those drivers can be a bit touchy sometimes.