Does anyone own or heard either Focal 40A's (16" Access sub older..cheaper option) or the Focal Utopia 27WX (11" Subwoofer much more expensive option) and what are your thoughts about trying to put two of either subwoofer behind the seat of a 1996 Ford F-350 CrewCab. I am looking for a decent subwoofer to use in a tight space. Someone suggested that I take a serious look at Focals. (Although I will have to buy them online because no one in this city carries them). The subwoofers will be powered by a JL Audio A1800.

The next part of my question is would it help the JL amp to pick up a Soundstream BX-15 Digital Bass Reconstruction processor. The head unit I have is an Alpine IDA X-001.

Thanks for any help you can provide as I really don't know anything about either of these options.