Thread: Venting trunk

I was thinking about venting my subs from my trunk, between the two 6x9's I have to both reduce distortion from the 6x9's when the subs are up (I don't hear any really, but I feel it's there in the midbass) and possibly increase spl a little.

I've only got 2 layers of dynamat on my trunk lid, still have to hit the sides and lid with a few more, but I was thinking about just cutting a hole in the rear deck between the 6x9's where there's already a square cut out from the sheet metal. Then just put some speaker grill cloth with small bracers (in case someone tosses something on my rear deck) over the hole.

I also was thinking of isolating the rear of my 6x9's with baffles, but they'd have to be big enough to not restrict the movement of the 6x9's. I've heard too small of a baffle will really cut down on the bass output because of the limited airspace.

Specs:
JVC AVX-640 HU

2 Infinity Kappa 6.5" coaxial's in front doors
2 Infinity Kappa 6x9" coaxials in rear deck
Powered by a 90Wx4 Infinity Reference amp

2 12" Rockford Fosgate P3's (cool ass '11 model with the weird dimple in the cone)
Powered by a Rockford Fosgate 1000-1bd amp

Just tryin' to get everything in check before I mount two 3.5" JL's on the a-pillars and start with some real EQ's to get everything loud, yet clean.

Old thread but I figured I'd bump it up since I just got over a case of pneumonia and I'm finishing the dynamatting/foaming of my trunk tonight.

Pep boys apparently has cheap foam baffles, so I may get two and just cut a small hole in each on the side. Isolates them to a point while still keeping an "infinite" airspace to some extent. I'll cut them on the outer edges (closest to the side of the car) since the opening letting air out of my trunk will be in the center.

I think I have to remove the 6x9's to mount the baffles unfortunately, anyone else HATE, like F*&%$#@ HATE removing the rear deck cover on 04+ GP's? I cut up my hands on the retaining clips every time, not to mention how many fricken turns those bolts take to remove. Even with a ratchet it feels like a lifetime...

Whoops.

You want to make a bandpass box basically.

Because in order to minimize that effect, you'll have to model your sub to see how large of a hole you'll need.