i have 3 Jl audio w3v3d4 12's wired in parallel in my custom crown box. these 12's are seeing 800rms daily and sound godly. the box give each 12 about 1 to 1.3 cbft per chamber. only one terminal is used for easy install. these subs say they handle 500w rms but obviously handle more. they are dual 4 ohm and wired down to 1 ohm.
all 3 subs are in 10/10 condition for performance and 2 of them are at 9.5/10 for cosmetics for small cone damage nothing serious that affects the sound.
Price: 550 for all 3 and box (buyer pays shipping)
Shipping and Miscellaneous Item Information:
depends on shipped local pick up is preferred due to the fact that its a big heavy box