Sub box questions/ideas (Mr Marv, et al?) >>>

Still noodling on the best approach to put a sub in my '06 DC, and I'm thinking about optimum sub placements. Some questions have fallen out of this noodling:

In general, do single-driver setups that fire forward sound pretty good in the DC? Or are there problems with standing waves/wave cancellation/interference with forward firing??

I ask because I'm thinking about alternative setups in which the driver fires toward the side wall or the back wall...but still keeping it all compact enough to fit behind the rear seat.

Ideas I was thinking about include using an 8" driver in a ported box firing toward the side wall (set back from the wall several inches). It would be a tight squeeze but I think it could be done.

Or alternatively, a very shallow 10" driver in a sealed low-profile wedge box firing toward the back wall (set back 2" from the rear wall--not enough room for much more of a gap than that).

Would either of these alternatives be worth trying, in the hunt for optimal acoustics? Or do forward-firing enclosures seem to sound fine??

 

My forward firing single 10" in a sealed enclosure sounds great. Actually, I was surprised at how well it worked out. My enclosure is placed in the center directly behind the rear seat with my amp rack behind the right rear passenger side. That way I could still utilize the storage bin behind the left rear passenger seat.

 

Excellent, thanks for the feedback. You actually answered another question I had, too -- I was wondering if it was okay (acoustically speaking) to have the driver centered along the back seat rather than offset to one side. Sounds from your post like it sounds just fine with it centered.

 

I have a dual 10 setup and have had no noticable issues with standing waves.

 

Unfortunately there is not enough room to fire an 8" sideways nor a 10" to the rear (not even a shallow mount due to the brace across the rear wall) unless you don't mind leaving your seat down all the time. In any case these trucks have excellent bass response with the sub enclosure up against the rear wall firing forward.

 

Thanks for the replies G-sak, sooner, and Marv.

The reason why I was concerned with the potential for standing waves/wave cancellation with the forward-firing sub is that I noticed that the factory JBL sub sounds WAY better with the windows rolled down than with the windows rolled up, suggesting that the reflected waves off the window glass are interfering destructively (cancelling each other out). Figured there might be similar problems with other aftermarket subs.

Marv, you are right about the lack of space, I stand corrected. I have a buddy who has a 6.5" Bazooka behind the rear seat in his DC and for some reason I was thinking it was an 8" tube ... which is why I thought an 8" custom side-firing setup might be able to fit. No dice.

I appreciate all your help and advice. I really wanted to have you build a box for me but my budget right now is limited to <$300 for the whole setup (amp, box, sub, wiring, etc) so I'm thinking I'm gonna give this all a go myself. We'll see what happens!