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Aesthetix Calypso, Tuberolling questions?

What results have owners of this preamp had with different tubes used. I'm running stock tubes into a pr. of Parasound JC-1 mono blocks now and the sound is very good. Would like to open up the treble a little if possible without messing up other areas. Any info on what people have tried and to what results would be of great help. Thank you
tom_hankins

Showing 2 responses by perfectionist

perfectionist
197 posts
 
I am using a Calypso with JC1's also. I've rolled Brimar-England, Tungsrams and GE Longplate 12ax7's, all from Upscale Audio. Still running stock Electro-Harmonix 6922's, have not rolled those. I listen mostly to rock, blues and some jazz fusion and chose the GE's.
I auditioned all of these tubes at the same time, and the GE were the best for me and my system. A great rock 'n roll tube, IMO. All of the above tubes were very quiet.
The stock Tesla's were decent, but a little closed in & rolled off in both directions,
again IMO.
perfectionist
197 posts
 
Barrelchief, in short, the Tungsrams just were not "right" in the bass department. The Brimars were sweet, but too laid back for rock. As kevin at Upscale Audio describes the the GE's as "light and bubbly, like a young blond." I agree with this assessment. More can be read on my tube roll in my thread on Calypso vs. Arc LS25...
http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1123175230&openfrom&1&4&&st0

Mechans, thanks for the tube info. And I agree, Sovteks suck.
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