Dear Lisnr and Jig, Read this review from Stereophile: http://stereophile.com/historical/605fisher/
A restored 500C will at worst compete with the Lehman and Line 3, plus you get a very good sounding amplifier in the bargain. I would not assume that the sonics are "vintage" in any way. Unless you have very power hungry speakers, the 500C would seem to be worth a try. But you have not told us what other amp you own.
A restored 500C will at worst compete with the Lehman and Line 3, plus you get a very good sounding amplifier in the bargain. I would not assume that the sonics are "vintage" in any way. Unless you have very power hungry speakers, the 500C would seem to be worth a try. But you have not told us what other amp you own.