alright, i cant take this anymore. the SINGLE w7 10 sounds AMAZING on my 500/1, but it just doesnt cure my want/need for MORE as usual lol. so im trading my 2 jl w7 10s for 2 15s and 2 15s only... reason being i still have my custom box for 2 15s that is 7.5 cubes tuned to 31hz....... anyways my w7 10s are single 3 ohm (run at 1.5ohm together) and are in M.I.N.T.Y.Y.Y condition. great sounding subs and get loud on low wattage. as stated above, only reason im getting rid of them is because i need more ( only have one installed). i do only have one installed in a custom ported box and i love it. i have a short video below you can see...... price is $500+shipping or trade for 2 15s and i will throw in my jl 500/s for the right subs... NO KICKER,ROCKFORD,ECT. (would love some more ssa subs ) one installed VIDEO: click on image below