Thiel Owners

Oblgny, efficiency is not necessarily the same as sensitivity, and 2.87 Volts is not necessarily the same as 1 Watt. 
 The 3.5’s depending on vintage were rated as 88-89 dB @ 2.87 V. in to 8 Ohms. That does not account for for the 4 Ohm nominal/minimum impedance rating (though not dropping below 5 Ohms in independent testing ). Suffice to say one could round down to a 85-86 dB sensitivity into actual load. 
 The same holds true for the 3.7’s, only more so as the impedance drops even further. If you consider the actual impedance load the more relevant sensitivity drops accordingly. 
 This is why the power levels into lower impedances need to increase as much as they do.

thielrules

Nice score!  Good to read that you guys are keep Mr. Rob Gillum in business. I have heard the Bryston 3B-ST a few times and do not underestimate its presence. It is a real sleeper of a power amp.
Stepping up to the SST or SST2 will reward the listener even more.
Keep us posted as you massage these loudspeakers into your room, system.

Happy Listening!

oblgny

as always, good to see you my friend. With all of this talk about the 3.5 model, I knew that you would eventually chime in. Hope you are well and your situation is improving. You and Tom really knows this loudspeaker inside and out. Keep us posted should you choose to purchase from High Performance Stereo. 

Happy Listening!

unsound

Agreed, more power into lower impedance points is a necessary factor.

Happy Listening!

Fellow Thielophiles,
I’m torn on my next step! My 21 year old CS 3.6s need a tweeter rebuild (I’ve had to do this at 7-year intervals and it’s that time again). I’m not sure if the speakers also may have a problem with the crossovers — they’re sounding raspy and pretty nasty lately. 
Issue is I’ve only had Thiels (03a and then my current 3.6s) for the last 33 years and haven’t done any serious listening to other speakers! ! Now that my 3.6s need work - and given possibly having to do significant work if crossovers need attention - and only CSS still servicing them, I’ve actually been thinking about listening to some other speakers (sorry guys!).  I’m curious if the “improvements” that the dealers, that Ive recently spoken to, say have occurred in the last 20+ years