Jond,
Thanks for the response. Reason I ask is that I have read some posts regarding matching based on whether the amp has a high or low sensitivity rating. My current preamp, about 9 years old now is a N.E.W. P-3 (designed and built by Cary). It has 10db of gain and 400 ohms output impedance. Like you all this tech stuff is somewhat foreign to me. Dennis Had recommended a low cost upgrade to me that would allow me to use 6CG7s instead of 12AU7s in the pre-amp giving me an better sound. But I thought before I did that I'd look around for alternatives. A new Herron is probably out of my price range, but a used one could work. The match is the most important thing though.
Can anyone else out there weigh in on this? Thanks