servoeyes said:
Hey everybody...I just wanted to know what people have done in the past and see what worked best. I'm planning on putting 1-2 10" subwoofers in my trunk, and am interested in ideas for the firing direction, affect on SQ, etc. I'm trying to save as much space as possible and get great SQ.
I'm finishing up an install in my g/f's 2000 Corolla which, as far as trunks and bass goes, very similar to a Protege sedan install. I've also helped others with small sedans...
There are basically 3 tried-and-tested ways to do a small sedan install:
1) remove the spare and place the subwoofers firing upwards
pros: looks cool, leaves plenty of trunk space
cons: no spare; unless you have a nice grill, you can't put anything in the space you saved; acoustical energy is lost in the trunk lid.
2) under the rear deck, facing the back of the car
pros: deep, deep bass. low freq. waves bounce off the rear and combine with waves not bouncing off the rear and double the intensity. still looks cool.
cons: very little midbass intensity. people with this config are crying for 8" mids in the doors or something to supplement it. You will contemplate over and over again if you should remove the rear speakers to let more bass in.
3) under the rear deck, facing into the cabin
pros: flat bass response, sounds great with everything except maybe gangsta rap that requires option 2 above. no intensity is lost in the trunk. your license plate doesn't rattle like on option 2.
cons: not nearly as much deep bass as above. May require more power to cut through the seat. only pratical for sealed enclosures as ported enclosures must be able to breath. doesn't look as cool as option 1 or 2 unless you fold down your seat to show others or you create a plexi back piece. passengers complain that their heart keeps jumping beats.
additional info: this option only works if the front of the box is sealed from the trunk. in other words you need to create a baffle that fills the opening between the trunk and the cabin, then you should dynomat the rear deck.
Out of these three options, I chose #3 for my g/f's corolla because she listens to soundtracks and pop music such as DMB. The deep bass wasn't as important as the mid bass. I used a single 10" Image Dynamics IDQ with 200watts from a PPI amp and it sounds great. It punches tight on bass drum kicks and has enough volume to play hip-hop the way it was meant to be played.
I'll post pictures soon.