Kt120 Vs kt90 Sound characteristics

@stereo5 Maybe the second and third generation was better?

A short reply of yes, maybe.  Not totally sure but doing some quick research, if yours is the first generation, looking back found some audiocircle posts with members in 2013 liking the later Tempest amp with KT120s better compared to the early Chronos, sounding "strident". iirc, reading about this a few years ago -  there were  design and component improvements with the gen II, III, also noted several trying different 12au7, 12ax7 tubes in Chronos hoping to achieve a more lush sound.  I wonder if you call Rogue next week and ask if they could offer a means to upgrade yours to the later versions somehow.

Might be a worthwhile inquiry. Best of Luck.    

@decooney,

I tried a bunch of different signal tubes including NOS Mullard CV4003 tubes and some other exotic tubes.  Although it did change the flavor, that grain was always evident.  Unfortunately, I sold the amp when I bought a McIntosh MA6600 integrated which I use daily in my office system.  Next up will be to get a pair of Cornwall IV’s to try in the office system.  I’m currently using the new JBL 100 Century speakers in the office system with a single SVS sub.  While I love the sound, I have an itch to try the Cornwalls.  I use that system to try different speakers. 

Jbl l 100 great The cornwall will have added presence with that compression driver.

 both companies have been around for a while, post your findings

Thanks for the post

You must have a secluded office