Thanks, all. Time for me to talk to my tube guru.
C.
KT66s in place of KT88 tubes
I expect there will be a change in bias, and a reduction in power. But on the basis that lower power tubes generally produce more faithful sound, can one put KT66 tubes in an amp usually requiring two KT88s per channel? I'm thinking about a pair of Quad II/forty push-pull monoblocks.
Showing 3 responses by dogberry
@jjss49 Thanks. I was rather hoping using KT66 tubes in place of KT88 would make my amps sound a little more like the SET amps I used to have. And maybe, from your description (if I look at it in a positive light rather than the reverse) they would. But it would mean changing a number of components inside as they aren't set up to cope with such a swap unaltered. I shouldn't go making such changes anyway, right now. I'm waiting, and waiting, for MoFi to get some more Quad panels in stock so I can have my 2905 speakers rebuilt, and any dissatisfaction with the sound while I have stand-in speakers in use is not really a reason to make changes that won't be needed when I get my ESLs back in service. |
Oh, yes, I'm au fait with all that, and the 'more tubey' sound was what I had in mind. I know there will be a lot of internal changes to make, now, after talking to the guy I use to keep my Quads in repair (for example, he has already replaced the caps and resistors in them with better quality ones after some failed). I know a 15W amp sounds OK through these speakers as I used to use them with a pair of AES SE-811 amps. But rather than buy old Quad IIs and upgrade them, I was rather looking for a shortcut. To do the former would probably cost as much as buying a new pair of SET amps if I look around carefully. All the same, I'd better wait till I have my proper speakers back and decide then if there is any improvement to be made. Thank you for your helpful thoughts. |