I'm sorry-I swore you wrote W7 not L7. My bad. Anyway, what Notladstyle was getting at was JL is one of very few companies whose amps actually produce the wattage numbers that they claim. Hifonics-not so much. Even though the TMA amps are produced overseas, JL has the MOSFETS and power supplies "hot rodded" as they call it so they will produce stated numbers just like their higher end stuff. The way it was explained to me-the TMA amps are somewhat remniscent of the old Rockford iron amps (remember-the ones that ran so hot they would burn carpets but they lasted forever).
I would stick with the TMA amps but of course I am a little biased. The bang for the buck factor is great. Just my experience...