Hello everybody

I´m searching for a new JBL Midbass for my system. It is a 4 way system (2235 x 2, as a cornersub, 4,5 cft enclosure). Mid / high is a D.A.S M 401 / 2385 a + slots. Now I#m searching for a 12" Midbass in the region between 63 - 500 Hz. I'd like to build a closed cabinet, but maybe that wouldn't work down to 63 Hz. Has anybody ideas for the driver / cabinet???? Thanks for all answers.

Greetings Aktivkampi