Caleb's SQ "Re"build log.

[winkychevelle 10+ year member]

That vent is going to act like a port so you might need to do a few calculations before deciding on how long itll be. Even if the port doesnt add the benefit of using the rearwave on certain frequencies it will change the way the speaker reacts thus changing the front wave.

a bigger pipe would negate that though. With a 8 inch mid I would use a 4inch pipe

 

[calebkhill 10+ year member]

It's approximately 4" coincidentally. I'll measure how long tomorrow.

But how does length go into play? It'll be playing 60-80hz - 250-300hz.

 

[calebkhill 10+ year member]

Actually, it's probably near 6"

 

[Jroo 10+ year member]

Quick question about the fiberglass isulation. I was told to never use it because it would retain water in places especially like doors. Anybody heard anything like that before?

 

[trumpet 5,000+ posts]

It's approximately 4" coincidentally. I'll measure how long tomorrow.But how does length go into play? It'll be playing 60-80hz - 250-300hz.

Building a vented enclosure for speakers is based on the same math that you'd use for a subwoofer enclosure, unless you're going to use one of the vague "rules of thumb" for port area. The amount of air in the port dictates the tuning. Cross sectional area of the pipe x length.

 

[trumpet 5,000+ posts]

Quick question about the fiberglass isulation. I was told to never use it because it would retain water in places especially like doors. Anybody heard anything like that before?

If it could be exposed to moisture it should be sealed in plastic. The standard covering we use is 1 mil paint drop cloth plastic cut to fit and sealed with clear packing tape. It's thin enough to allow sound to pass through it, at least the frequencies we need to affect.

 

[calebkhill 10+ year member]

Building a vented enclosure for speakers is based on the same math that you'd use for a subwoofer enclosure, unless you're going to use one of the vague "rules of thumb" for port area. The amount of air in the port dictates the tuning. Cross sectional area of the pipe x length.

So cross sectional length x length of pipe = ??

 

[calebkhill 10+ year member]

A layer of mat and vinyl wrap, these should be good to go. I'm considering using Velcro to hold the panel in place.

Then on to the amp rack... All that's left of the amp rack is mounting the plexiglass, carpeting the inside and mounting the amps.

Flush to carpet

Tiny gap. May bondo it, but i don't think it's enough to cry about.

Nice fit with the rail panel

Somewhat decent fit with the a pillar. Again i don't think it's enough cry about.

 

[winkychevelle 10+ year member]

Looks good man

 

[captainobvious! 10+ year member]

standard fiberglass insulation is not suitable for areas exposed to moisture. You shouldn't have it in the car, especially in the doors. You'll be dealing with water retention, leading to rust...and possibly even worse- mold.

If you want to use a product like this, you need something that does not retain water and is mold resistant like Roxul safe n' sound. Roxul Safe'n'Sound