Check with Bob Crites, the guy made my Klipsch KLF 30's go from mid fi sound to some of the best speakers Ive owned at any price.
I'm not familiar with what mods are best for the Heresy II's, Bob should know. You won't be sorry for any upgrade through him. he knows his stuff and has a good ear for his tweaks
I'm not familiar with what mods are best for the Heresy II's, Bob should know. You won't be sorry for any upgrade through him. he knows his stuff and has a good ear for his tweaks