I have a chance to purchase a beautiful pair of ADS SL-520s for $50 for the pair. I am currently running a pair of mid 1980’s Klipsch Heresys with a low 2a3 powered tube amp. Any opinions if this would be a improvement or a downgrade from the current heresys that I am running now. Thanks.
i still run a pair of l520s in my basement and love 'em--very resolving tweeter and great bass for such a small speaker. also very efficient and easy to drive--as stated above they're a different animal than the heresy, but i'd grab 'em for $50