Bo3b

Thanks everyone for all the help! Learning but still have a couple questions... Both speakers seem to sound phenomenal but my untrained ears could easily be missing something - Is there a simple method for testing output fidelity to be as designed? And any cautions on actually using the speakers after 40 years of idle? Thanks again!

Looking for more information on what I think are original Heresy speakers. Consecutive serial numbers, 34R256 & 34R257 in H-WO style. Both generally in great shape and in working order. Are these the original model? Does the S/N indicate anything? OEM serviceable to replace old parts if needed? Online resource to learn more? Thanks, Bob J Rochester, NY