I agree with running all new equipment, especially a single 12 in a low-tuned ported enclosure. It will blend nicely with your mids due to the natural rolloff in bass reproduction in the higher frequencies, and give you one hell of a smile when ya crank it on a song with some nice looowwwww notes. Just my opinion.
PS: for the sake of clarity, my comments about the sub blending and the low tuned enclosure are based upon the assumption that the time will be taken to acquire/build a properly designed enclosure based upon the driver's TSPs.
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