AJ, unfortunately i cannot comment on the JBL vs Axioms here, but i can put forth that in putting together a new basement system, it deserves a new audio setup as well.
I say give in to finding something new, unless of course you are not as interested in audio as a hobby and just want to find something good. In either case, Axioms are a good purchase and will no doubt present a different sound character than the JBLs.

"Those who preach the myths of audio are ignorant of truth."