Donvito is correct. I got carried away on tubes and forgot the QSilvers. While you can generally go up from 6L6 to KT88 in an amp designed for the smaller tube, you can't always go down from a big tube to a smaller tube in an amp designed to work with a bigger tube. This is because the plate voltage among other specs won't tolerate lower powered tubes. The TS 7851A maxes at 500v anode while a KT77 can stand 800v. I suspect the QS may have 600v on hand and that rules out the smaller 6L6 class tubes.
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.
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.
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- 34 posts total
noromance4,705 posts11-28-2020 9:27amDonvito is correct. I got carried away on tubes and forgot the QSilvers. While you can generally go up from 6L6 to KT88. <<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>> Sure would be nice if he could though, that is a good valve bottom to top. I’ve always liked the 6L6, bottom to top in a push pull amp. Just the best for a full range valve, sure better than an EL34 or brit KT77s in the BASS region. I’m a Mac guy, they are magic in the ol Macs MC240s, and my Cary V12r or Six Pacs. Good valve.. The Mac wont stand for a cheap valve it will sound BAD, Those Carys, blow me away, cheap valves sound VERY good in those two .. I mean REAL good.. BUT for mids.. EL34 is just the best.. They are not the best bass valve, but they are not sloppy, in the bass region just lack authority. I like 6V6 too except they roll of a bit to quick on the top.. great late night listening valve. (Cary’s love um’) Here is the deal on KT 90s I used them in VTL, 300 DLs, and Cary’s. They sound SS almost, to friggin clinical for me, and they hate hard domes.. Boil your ears.. powerful mids, not smooth and silky like the 77s. I think they lack DEEP bass but they have super control. The 88 is deeper more dynamic, like the 6L6, Kinda Belch it out.. (TUBES) My oh my.. hands feel good. Regards |
- 34 posts total