Hey guys i just got a new Lexus is250 and planning on starting my system with adding a sub. i will be making a custom box for what ever i decide on. would like opinions on some decisions. i am attempting to stay with the SQ range i like a little volume but im sure any upgrade will give me the sound i am looking for in that respect. Sub choices so far: fi q10 aa Chaos 10 2x kicker l7 8 amp choices: kicker IX1000.1 Possiably a mcintosh mcc302 (dont know if the money would be worth it) or if there is a better priced alternative relaly need help here ok now heres the limits guys im not rich but i will spend anything for a good setup.. i will be devoting more to the front stage later on as i said earlier starting with sub. i want to avoid adding a second battery or alternator. i have been looking at some sundown amps yet all seem to recommend batteries and alt's dont really want that.