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KT88 in Rogue ST-100 amplifier

Anyone experimented with the KT88 tubes in the Rogue ST-100 in place of the stock KT120?
Any thoughts? What was the change? Did you notice the decrease in power? Change in resolution, details,  dynamics, soundstage, etc.?
Speakers are Martin Logan Montis with powered woofers. Preamp is Pass Labs XP-12. 
thanks!

128x128audphile1
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audphile1 OP
5,290 posts
 
I was trying to get some feedback here to determine if I’m missing anything. Looks like the answer is no. I did swap 12au7 and 12ax7 with good results. 
melm
1,082 posts
 
What did you swap the 12au7 and 12ax7 tubes to? What changes did you hear? Thanks.
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audphile1 OP
5,290 posts
 
Gold Lion - more refined and relaxed presentation than the stock JJs. More open, better soundstage. 
Brimar 12AU7 (combined with GL 12ax7) - more extentended, more texture in the bass. Smooth and sweet up top. RCA Cleartop 12au7 (combined with GL 12ax7) - more top end extension, slightly more relaxed mids, tighter bass. 
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