each sub's rms is 350... which means if you were to run 2 of those subs you need an amp that puts out at least 600-650 watts.
340 watts for 2 total subs wont cut it.
but anyways, your gain should be set according to the voltage output of your HU.
the easy way to do it is to turn all your gains at zero, and then turn up your volume 3/4 up and then turn the gain up until you start to hear your subs distorting. then turn the gain down a notch. at tha point, it should be fine.
your bass boost is really just up to you. doesnt matter really. its preference on how much bass you want.
no prob. i would reccommmend getting a diff amp. like a audiobahn a8002t for $115 off of ebay. and it puts out 800 watts. that would be good for your subs. alot louder then if you were to run it off of that dual amp.
yah but i need to make money i have 2000 right now but i want 5000 for my new system..But these subs Can hit hard!! i had tested them on a 1200 watt rms 2 channel amp and it sounded GREAT..