Tubes for Rogue Audio Perseus Magnum Preamplifier

Easy recommendation. Mullard 12au7's. The difference between these and the stock tubes Rogue uses isn't subtle. Check out Vintage Tube Services. They match and grade all of their NOS tubes. Not cheap at $225 per pair, but well worth the upgrade.

@topten 

I know this is a very old thread but I am in the same boat right now and wondering what you came up with.  Thanks

@mr_m  +1