I bought a pair of the 10" BL's with the SPL option a few years ago, maybe 4. I have no use for them anymore as a burp only sub. Is there a way to change them to a musical and burp sub without having to change motors? I know the gap is pretty tight since it's a burp only sub, just not sure if it's as simple as buying a new recone or if it's more expensive.

Nope, your correct the only way to change the option is to get a new motor.

I was afraid of that. It's not worth the money for me to bother. Guess maybe I'll sell them off instead.

Price for the pair?

I'd get rid of them for maybe $425 shipped for the pair. They are both great subs, one surround had a small repair done, but you really can't tell and the dustcap on the same one has been re-glued. The 2nd sub is still mint. Both subs were ordered as dual 2's, one sub is really a dual 1.5 and the other is a dual 1.6.

I posted a thread with pics for them in the classifieds section of this forum.