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Tube rolling with Quicksilver Mono 60s -- from KT77 to KT88? KT 120? etc.

Happy Turkey Day!  I have Quicksilver 60 Monos and I'm using Gold Lion KT77s. They sound great. The amp came with JJ KT88s and they were a bit bright/harsh. The GL 77s are better.

For variety's sake, I'm thinking of having another set to just try for variation. The monos can use KT77, KT90, KT88, KT120 or KT150 outputs.

I have heard the Gold Lion KT88s are great tubes, but I'd also be open to others (not more 77s, though).

Does anyone one have a sense of the kinds of sound changes might be brought by either KT90 or better KT88 or KT120 or KT150s?

If it matters, I'm using a QS Line stage and stand mount speakers, 8 ohm 87 db.

One thing I'm looking for (possibly) is a somewhat tighter bass, but I'd be open to hearing what other sonic changes might result from other tubes.

Thanks.

hilde45

Showing 2 responses by yogiboy

yogiboy's avatar
yogiboy
5,846 posts
 
@decooney
My friend has the QS 120 amps and he has used KT88 tubes with those amps. It states this in the QS M120 manual!
Mono 120 for web (quicksilveraudio.com)
yogiboy's avatar
yogiboy
5,846 posts
 
@decooney
Thanks for the information. I wonder why the manual says that the KT88 can be used? BTW, I use the KT88 with my QS Silver 70 amps and Mike told me that can also use the KT 150 if I wanted to give them a try. This is from the M120 manual! 
Tube Complement 1 - 12AU7, 1 - 12AT7 2 - KT88 or KT150
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