i brought myself a stealth shelf, sounds gay i know, and that enables me to use 6 x 9 with out sacrificing my original shelf. As for
JBL's they are not a premium speaker but that is reflected in the price. I'n my opinion i would pay i bit more and go for an alpine or
kenwood set up. look in your local free ads you will be amazed at the amount of ice for sale. i picked up two kenwood 6 x 9 for
£15 in spanking condition