Replace tubes in Black Ice 3502p

What differences should I expect to hear if I replace the 6550s in my Black Ice 3502p with kt150s?

tylersmith10-05-2020 2:40pm

wolf_garcia Details Discussions Posts This discussion Message User 6,695 posts 10-05-2020 at 05:04pm Copy Comment URL Report Comment Edit Delete I also had a 502p and you could stick nearly any power tube in that thing...I biased my KT 150s at 500mv and they sounded great, as did 6550s, KT120s, and KT88s. Certainly Jolida/Black Ice are still one serious bargain of a well designed tube amp.
jjss49 Details Discussions Posts This discussion Message User 6,612 posts 10-05-2020 at 09:30pm Copy Comment URL Report Comment Edit Delete kt150 will provide more power more linearity more headroom make sure your specific amp is able to handle the big bolder badder tubes... some can't, and the results then aren't pretty...
jsbw Details Discussions Posts This discussion Message User 14 posts 08-10-2021 at 07:52pm Copy Comment URL Report Comment Edit Delete Curious if you went ahead with the 150s. I have a 3502p myself--bought it a year ago. Swapped out the stock Tungsol 6550s with GL KT88s--great improvement. Considering a quad of KT77s. But man, I have developed QUITE the collection of 12ax7 and 12at7s and all their variants. :D