My friend and I are debating between the brands. I like RE, he likes JL. In overall quality, sound, price, SPL/SQ, which is the better brand for subs. I usually get a 12" but im speaking overall. COMMENT NOW!!!!
Overall both companies are A+. JL being more expensive of course. I believe with both companies you should stay away from the lower line of subwoofers ( JLw3 and lesser ) RE SE's being as low as i'd go with RE. It all depends on how many watts and how many subs you want, also your budget and cargo space, eletrical as well.
As far as SQ/SPL
JL: spl= w7....the w7 in JL box is supposed to be sex.. sq= w6