where did you buy your subs from? if they were purchased from a big box store with a box,
you got a generic box. The right box will help. which way are the speakers firing? If your subs are close to the trunk lid opening firing against the plastic panel, your good. This helps the speakers load, which means more sound and feel. Ported boxes are very nice if tuned right. I tune are boxes for what the customer plans on doing or wants out of his or her system.
If your running the factory head unit, with a line out converter that could be part of the problem. Factory amped cars such as Bose, Pioneer, JBL, Infinity, and so on will drop frequencies once the volume starts going up. Also see what your crossover settings are on the amp. With sealed boxes I usually set the crossover at 70-100 range.
If you want to get the best out of your stereo buy a nice headunit. If your down with the stealthy factory look buy an Audiocontrol LC6i, or DQ8. Perfect stuff for factory integration.
If you have any questions on wiring or aftermarket stuff just ask. I have been running and installing for a stereo shop for 8 years. I also only run one down firing Alpine S-type 10" in a 1 cubic foot box. Not square in shape. Alpine M-450 amp, Pioneer Avic D-3 headunit, Alpine Reference Type-X 6.5"s in the doors on F-450, and zero rear fill. If you are in the Lansing, MI area look me up. Skory Autosounds... Ask for Jesse
ha, wow, nice but im nowhere near MI im in GA, my boxes are pieces of crap and im going to get 2 new ones and seperate the speakers and put them to where the amp can be placed on the floor of the trunk in the middle of the speakers instead of on the speaker box itself because it rattles so damn much.
and i dont have a factory box because i had a friend make it for me and whenever i was installing the speakers in the first place i put a couple of holes into the box that i didnt mean to and i ended up having to seal those holes and i relized after i sealed a couple of those holes that my friend is an idiot and didnt seal the inside of the box so air was getting out of the cracks where the pieces of plywood met, so i ended up sealing those on the outside for a quick fix but basically my box is falling apart, thus the getting/making (whichever is cheaper) of 2 new ones.
and the boxes have to be back near my rear seats so im able to get to my spare tire. because god help me if i actually depend on my tires not going flat because stupid crap happens to me all the time.
i definatly dont have a line out converter because i use the high frequency input, which im not sure if it makes to terribly much of a difference but the whole, "stealthy factory look buy an Audiocontrol LC6i, or DQ8" im really trying to do this the cheapest way possible and thats already $50+ to get those boxes and i have other expenses so yeah, im a cheap bastard
and as for my settings on the amp, i have everything set to where its just barely below begining to distort. i spent about an hour tweaking it.
so is buying/making two boxes to seperate the speakers going to make any difference? because then i could just make/buy a dual box if it really matters
and i tried securing the speakers better and it helped me feel them a bit more, but i still want a wee bit more from them because i know they can do better.