Recommended Speaker List for Atma-Sphere OTL Amplifiers.

I think that the impedance curve is more important than the sensitivity. The DeVore 0/96s are a superb match and this comment is based on hours of actual listening experience. A friend and myself built a pair of M60s and have never heard a better amp on the DeVores. We compared the M60s to VAC, Audio Note and Mastersound. 

Vandersteen 5 series, Quatro series, Treo's with Sub 3s  have an easy impedance for most any tube or OTL design.
The unique 100  HZ high pass unloads the heavy lifting for the main amp and allows the speakers internal solid state amp to take care of the bass frequencies, in room compensation adjustments takes out your room / placement issues dramatically improving transparency and clarity of the whole system.
JohnnyR
 Vandersteen dealer

..and to pile on a bit, the Vandersteen way preserves the transfer function of the main amplifier, which is part of the point of this thread....

How does Tannoy & atmasphere match up? Especially in the bass department......

Very well is the short answer.

I have used the MA-1s amp with the Vandersteen Treos without subs and they sound great!