As a Cary dealer, I feel that the 03 is very good preamp in stock form(especially at it's current price point). However, it will really come alive with a little tube rolling.
I've had great luck with Mullards and RCA's. Do a quick little search online and you should be able to find several different great options depending on what type of sound you would like to end up with.
I've had great luck with Mullards and RCA's. Do a quick little search online and you should be able to find several different great options depending on what type of sound you would like to end up with.