Tube favorites for Modwright LS100?

I have about 100 hours on the LS100 which I understand requires at least 400 hours of break-in to reach their intended sound. Have liked the sound of the NOS Tungsol and Sylvania as they and the amp have been working themselves in, but decided to go ahead and pick up a pair of the Black Treasure CV181s. Will say that with only about an hour on these tubes they already offer more top to bottom detail than the Tungsol's. Will look forward to trying the Sophia's at some point.

Anyone try the Synergy HiFi/Create 6SN7's and/or 5AR4 in the LS100?

I am auditioning a LS100 with stock tubes.

I find the top end a little hot, bright, slightly harsh.

My reaction may be due to my age and too much rock and roll in my youth, my hearing is down quite a bit at 10,000 hz and higher.

Do you think upgraded tubes for the LS100 will tame the top end or just add bass and expand the sound stage.

Thanks

I purchased the LS100 w/o the ability to audition and went right to using a NOS rectifier and the Black Treasure cv181 based upon prior experience with the latter's KT88s and am very pleased - that said the amp needs about 450 hours or so of break and to my ears continually improved over that period

I've had my LS100 for about 18 months now. It does require 400-500 hours to fully break-in.

I would really recommend that you swap out the rectifier and the 6SN7 tubes. I have tried MANY different tubes and found the Shuguang Black Treasure CV181 and the Mullard 5AR4 to be the best FOR ME. The Sophia Electric 6SN7 tubes are really nice also.

So, between full break-in and new tubes, I'm pretty sure the LS100 will be what you are looking for. Of course, I'm biased because I LOVE mine!!!!

There are several threads here on Audiogon and on Audio Circle that talk about tube rolling in this unit.