I'm sure it was the bracing, cement and fiberglass that added clarity.My ears told me. I finally built my 3 way- 2 enclosures, heavy dampened, heavy braced, cement and fiberglass ballasted. Electronic X overed 3 amped, put in comparison with the jbl l100t , the jbl seemed to play behind a mattress. Clarity was lost detail was lost. I dumped them. Only kept the woofers. Fire place was happy.
