Dodd Preamp Question

I use the Dodd with NOS Amperex 7308's. They're not cheap, but boy do they sound fantastic. I never even installed the JJ's, so I can't comment in regard to break-in with those tubes. In my experience, the changes of this pre during breakin were not significant. My guess is that at 50 hrs. you pretty much know the character of the pre with those tubes. The Sixmoons review of the Dodd with stock tubes is pretty much in line with your assessment. I agree with Mrjstark that Mullards would be a good choice if you're seeking more warmth. The Amperex are ever so slightly on the warm side of neutral, but maintain a wonderful clarity.

Amperex tubes are worthy recommendation.
Cruz is right about their characteristics and it could prove to be good starting point in fine tuning your system in the right direction.

P.S
I've also used Amperex Bugle Boys in my Dodd and they were quite good as well. Not as "middle-rangey" as Mullards but proportionaly balanced throughout the frequencies with touch of exitement and sparkle.

Good tube comments above. I currently use a pair of Tungsrams,which are kind of a poor-man's Amperex. The Mullards will be warmer, too much so for my personal preference. The Dodd will let you hear the differences in each of these tubes. IMO, the JJ's aren't bad, but definitely are tonally on the cool side. It's worth trying a few different kinds. I'm guessing you'll be very happy once you do. Cheers,
Spencer

I now have NOS Mullards and Siemens CCa (the best of ALL 6922 variants according to many in the know).

I'll try both and report back.

With the stock tubes the Dodd is very good but just occasionally exhibits a bit of treble glare/hardness.

Ok, well, the Siemens are so good I don't know if I'll put the Mullards in. Better all-around. Glare definitely gone. One of those no-doubt, don't-have-to-listen-hard changes.