Putting together a complete system for my 2007 Tundra Crewmax and I am stumped on which subs to use. I am trying to decide between two JL 13TW5-3 slim 13.5" subs or two Alpine SWR-T12 slim 12" subs. The subs will be mounted in a custom enclosure behind my rear seat and powered by an Alpine PDX-M12 amp (1200 watts RMS). Promblem is that I've never heard either of the subs and have gone to numerous shops in my area to try to listen to both subs, but no shop (even the authorized retailers) has either sub hooked up in an enclosure for me to hear. Anyone out there hear either of these subs, or ideally both subs, so they can help guide me in the right direction? Thanks in advance.