Slates, on the more affordable front, the 6H23 NOS Russian Military tubes should give you what you're looking for. You can get them from Upscale Audio(get Platinum grade) or if you want the same tubes but the cryo version, the ATSI Advantage Tube Services sells them. Personally, I'd go for a regular version from Upscale. They sounded smoother, more natural with better bass and soundstage than both the Sovteks and the Upscale Audio EH6922 tubes I have. They are reall good tubes for the money.
Very close to the Mullard 6922 tubes I use in my LS-25.
If you want some good NOS tubes like the Mullard or Amperex, you can check out Brent Jessee Recording and Supply.
Very close to the Mullard 6922 tubes I use in my LS-25.
If you want some good NOS tubes like the Mullard or Amperex, you can check out Brent Jessee Recording and Supply.