Mike, I recently bought a box from you for two 10" speakers. Would it be possible for me to put a port extending out of each chamber to tune the box? I was thinking of cutting a properly sized hole in each chamber and running PVC on the outside of the box (hard to explain). The subs (10W6) usually take .75ft per in a ported box, is there any way to rig up something? I miss that ported box sound. Thought that I would like the sealed route, but it just doesn't sound the same (obviously) as what I'm used to.

Any suggestions?

 

I also have a 10W7 if it would be easier to order a box and modify it instead. In your opinion, what would give the better overall sound? I listen to everything and this box sounds great with rock, but if I put rap or j*** or something with heavy, loose bass, it doesn't perform quite so well for that.

 

http://www.ajdesigner.com/speaker/ajvented.php

Download the software and use some science to cut holes in your box.

 

Good stuff, thanks Paul!

 

I've had a few people add ports to the 1-10" enclosure but I'm not sure if the 2-10" faceplate allows enough room to add ports.
I just went from a 1-10" ported to a sealed box and the ported box definitely was a looser bass. I listen to more rock/alternative so I like the sealed better. If you can fit a couple properly sized ports in there I would say try it out and it will probably give you what your looking for.

Mike

 

Does the port have to open in the direction the speakers are facing?

 

Nope not at all.

Have a look at the beautiful SVS line of subwoofers. Their lower ends ones are built in tubes with the bottom having the active subwoofer and the top having the port. Their box line has the subwoofer pointed straight down and the three vents arranged in a line on the back. I have one of these things and it sucks the air out of your lungs.

The most critical thing with a ported design is the diameter and lenght of the port. SVS gives you three ports and depending on how many are pluged with the supplied cores you can tune their sub-woofers for 16 Hz, 20 Hz, or 24 Hz each with a different response curve.

 

Sorry to go OT for a sec, but its rare to find another SVS fan outside of the HT forums. Schweet. I have had a PC-Plus (31") Cylinder for about 4 years now. Which are you running?

 

Good, b/c I was thinking of running the port on the outside of the box. This would give me the flexibility of running it out of the back of the box. I was worried about cancellation.

 

PB12-Ultra in oak ... I need another one as my listening room is some insane size like 45,000 cubic feet ... I did the measurements and calculations and the boyz at SVS recommended two. When I listen to a new movie or something like the Blue Man Group the whole house bumps like a Honda Cvic with a JL woofer.

 

Normally a port is kept as short as possible to avoid "cuffing" - the breathing of the air caused by the turblence as the air is pushed and pulled back and forth across the port's surfaces. Some ports will have flares and structures built-in to them to try to limit or control the noise.

A lengthy port is a transmission line and would be pretty difficult to fit inside a car ... let alone a tiny 350Z without a lot of lumber and twisting and turning.