I wanna re-do my system again i know how to wire and shit now, lol. so i was thinking FI BTL 15 on a AQ2200D and then getting a bigger alt. How much louder would 1 15BTL be then 2 12 type R's on a alpine mrp-m1000 amp
You could do 2 15's but it would be your WHOLE trunk to do it properly. A single 18 may be doable if you built the box ported back or sides with the woofer firing up, though ideally I've had best luck in trunks with subs/port back and a bit of room between the box and the seat backs.I was thinking i would want to just have one HO alt so i don't think i'd wanna run much more then 3000. it would be in the trunk of my Lexus ES300 its not huge but i could fit 2 12s in a pretty big box. im not experienced in building a box but i have basic carp skills and there are those box plans in a sticky on here