Atma-Sphere in CO?

Well, I left the M-60s on for about a week and then compared again to my my Franks. As Ralph had intuited, they did improve and narrow the gap between the two amps.  Once again, I was impressed by the bass control and grainless sound.  As before, however, the Frankensteins performed better on 3-dimensional sound and naturalness of voices and instruments.  I wish I could just magically combine the two amps, but in the end decided to return the M-60s to The Music Room. 

@tomic601 I'll probably be taking them up to Broomfield next Wednesday.  For other potential buyers, they do come with VT-231 Ken Rads and RCA smoked glass tubes  I think the 6SN7GTBs are Sylvanias.  They should really advertise that in the ad...  

@cal3713
It sounds like these amps were used- any idea what version they are? The current version is Mk3.3 (older versions can be updated with full warranty reactivation).

@atmasphere I never found out from TMR. They had the 6sn7s in the 2x2 configuration, but had rounded edges on the power supply cover.  

Would love to hear a fully updated version at some point in the future, but only have funds for the units themselves at this point.

 @atmasphere I saw in listing by TMR advertised as mk3

If it had rounded corners on the power supply cover its a Mk3 at least.
Any idea of the condition of the tubes? The main reason we've found that people let go of our amps is that they don't realize how far downhill the tubes have gotten. The second reason is that they buy a new speaker to which the amp is not compatible. In your case, that is no worries as your speaker (or its predecessor) was designed with M-60s that Israel used to own.