Same power handling.
.4cuft larger enclosure(sealed) for the 13W6v2.
13W6v2 will move much more air
Eric Holdaway said of the W6v2 "...the best sounding subwoofer that I have tested for Car Audio & Electronics."
Grilles are available for the W6v2.
W6v2 was developed after the W7 so much of what JL learned from building the W7 went into the W6v2.
40% more effective piston area w/ 13W6v2.
3.1dB higher SPL 1watt/1meter for 13W6v2.
13W6v2 is 4 pounds lighter.
Xmax is almost the same.
13W6v2 is in stock.
In english-MORE BASS.