I've never thought my 325's were too bright but I've also used them on warmer sounding amps. The LD1+ had warm tubes and my Cmoy is on the warm side as well. I don't think you'll be disappointed with your purchase. Keep in mind, the 325's respond well to modding if you are brave enough to crack them open. It's very well worth it IMO. Changes them by a decent amount for the better.
What sort of modding are we talking about? Punching holes in them?
I'm on the verge of a purchase and you've got me interested now :P