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Power Tubes for Rogue Cronus Magnum?

I have a regular Cronus which I like a lot. It sounds really good with the EL34/6CA7/KT66/6L6 family of tubes. Not so good with 6550s.

According to Mark at Rogue the power supply and other upgrades in the Magnum edition match better with the 6550/KT88 family. It would be nice to be able to have that extra power at times. But I really like the sound of the Black Treasure 6CA7s and Genalex KT66s I use and want to know that they will still sound great in a Magnum before I upgrade.

So, has anyone with the Magnum used these tubes (or other EL34/KT66s) and how do they sound?

And how do they compare with whatever KT88/90/6550s you're using?

TIA

Rob
rpf
rpf OP
76 posts
 
Thanks Facten for your response: that is helpful info about the KT90.

There is a way to use KT88s, or other wide bottle power tubes in the Cronus: socket extenders. I use them now in order to employ 6CA7s and KT66s.
facten
2,741 posts
 
wasn't aware of those - any negative effect from having them in between?
rpf OP
76 posts
 
None that I could hear.
music1129
2 posts
 
Hello everyone, I'm new to the site and recently purchased a cronus magnum and wanted to know where I can purchase a set of 'socket extenders' that Rpf mentioned. Also can the KT 120's be used if the sockets are in fact extended?
facten
2,741 posts
 
might try tubemonger.com for extenders

suggest talking with Mark at Rogue directly re the KT 120s
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