Atma-Sphere in CO?


I'm looking to listen to one of Ralph's amps.  I'm in Denver and have Coincident PREs and a pair of Coincident's wonderful 300b Frankenstein's if anyone's interested in doing a comparison.  Obviously the speakers won't travel, but I'd be willing to pack up the amps and do some driving.

Will probably catch AS at RMAF, but would also love to do a home based A/B comparison...
128x128cal3713
@tomic601 Thanks for the heads up. I sent an e-mail yesterday and just got my invoice today. Can’t go wrong with a 45-day 100% refund trial period. Very curious to hear how they compare.

And @brownsfan I do happen to have a pair of old smoked glass RCA VT-231s so hopefully they help the M60’s play nicely in the system.
@brownsfan btw, any word on which of those 6SN7s are most critical?  I think I have enough pairs of decent ones to replace the stock drivers, but only one pair of those smoked glass RCAs.
@cal3713 I think the amps you bought are MK 3s, so I am going to have to defer to Ralph.  Mine are MK 3.3, so what I know is not relevant to your amps regarding which positions are most impactful.  I can say that at least in my amp, tube rolling the drivers is noticeable.  Some like the old Sophias that were rebranded First Musics, and as I said, I found the 60's RCA GTBs to my liking. (I left the new stock Chinese tubes in the position that controls DC offset, since Ralph told me rolling that tube has little impact.  Not sure which tube in the MK 3 controls that function.)  When you get your amps, please share your thoughts on the amps per se and also anything on your preference in 6SN7s.