I recently saw a modification for the Avantgarde Duos where it replaced the oem mounting hardware for the horn tweeter and midrange enclosures. The kit allowed the horn enclosures to be isolated by what looked like to be an extension spring and 2 threaded bolt; one attached to the steel u tube frame and the other to the enclosures. My only problem is i can't remember where i saw it.
Any help would be appreciated.
