I've been around this site for several years now but never really posted because I could find all the answers I could ever need. Including buying a couple yardsale SA-8's...now to my history with Sundown.
I originally had a v1.5 in a box I built that I was never happy with. It was my first and a very simple box. Very rectangular and the port was too small...the things you learn with experience.
After that I bought a v.2 and a guy build a sonotube enclosure for me. It got down, dirty and loud but lacked the punch that my initial box had.
Until this point I had only had a rockford p500.1bd, which is definitely capable of thoroughly punishing an SA-8. Both 8's are dual 2's
I had some spare time a few weeks back and decided I wanted to build a box for both of them to go in the trunk of my neon. First off, I know the mismatch subs is probably some of my cancellation issues and I know the v2 is beating the v1.5 to death and found its mechanical limits when the gain is cranked too high. LOL. I bought a refurb kenwood amp that's supposed to do 1,000 @ 2ohms.
I know these things move a lot of air but I wouldn’t think they would move enough to cause me to have pressure related issues but what do I know really...
I ended up with a box about 1.6 cuft and tuned to 32ish. All MDF with a 3x12 slot port. Let me just say I'm happier than with the previous enclosure and it's mainly due to better SQ, these things continue to surprise me... for the record, I had two old kicker 10's sealed before and it's been years since I had them. I haven't had a real sub other than these 8's
Anyways, down to the meat and potatoes. It's the age old "My bass gets louder when I open the doors" dilemma...
Orientation 1: Subs and port originally pointed same direction. I tried pointing forwards and backwards(box only fits that way), up against the seat or all the way to the back of the trunk.
I got a pretty good increase in sound just by opening the drivers door, and more with both doors open.
Orientation 2: I ended up cutting up the side of the box to change the outlet of the port, the box right now is as far back as it’ll go. The port faces into the rear passenger corner of the trunk with the subs pointed to the rear.
Still an increase in sound when the doors are open but I believe it is better than it was with orientation 1
Other options? Or maybe someone has some other ideas?
1: Seal off the rear facing sub openings and mount them in the top with the port facing rear or side.
2: Build a ported box for my v.2 and corner load it and enjoy less bass and still better SQ without opening windows.
3: Buy a yardsale SA-10 and see what a bigger sub is like