View Full Version : Quick question - ported box.
06-18-2003, 02:38 AM
Hi guys. I'll be building a ported box for 2 audiobahn 10" this weekend, and I have a question. The Vas for this particular sub is .85 cuft, displacement is .10, which gives .95cuft per chamber. Since I'm porting this box, should I increase the cuft per chamber? Would appreciate some numbers :D . Also, this box will be for SPL, tuned at 40-45hz. Round or Square ports, which would be better?
06-18-2003, 02:50 AM
the bigger the box the better for ported boxes.
06-18-2003, 03:43 AM
ok, thanks for the reply. Any suggestions on how many cuft per chamber?
06-18-2003, 03:43 AM
vas is not a number you want to be looking at, unless you know what it means, and how to implement it alongside the other T/S parameters...
which audiobahn drivers are you talking about..
give me model numbers and year.
06-18-2003, 03:45 AM
The model - AW100Q
Year - 2002
06-18-2003, 03:47 AM
try 1.6 cubes before the drivers displacement, but after the port displacement... tune to 33 hz, and use a common chamber...
06-18-2003, 03:51 AM
Just to be clear, 1.6 cuft total volume, or per sub? 33hz would be right for an SPL box?
Seems I was way off, but thats why we seek advice from those that know :) . One last thing, just out of pure curiosity, why use a common chamber?
06-18-2003, 11:41 AM
that's a little low for a pure SPL box, but a good spot to use for a daily driver to get them loud.
use a common chamber because it's the only way to make sure you ahve them both tuned to teh same spot...
06-19-2003, 12:23 AM
Wonderbread - thank you sir for the help :D. I'm planning to use 2 3"dia round ports, proper length for 33hz... that ok?
06-19-2003, 12:37 AM
should be ok...
im a fan of teh slot port, but it should be fine...
06-19-2003, 12:41 AM
hmmm now that you mention it, a slot port would be easier with a common chamber. I'll look into that. If it's within my ability, I'll go for it. Thanks again.
06-19-2003, 12:42 AM
06-25-2003, 12:41 AM
Just an update..... Box is built, ports are tuned, subs installed, and to be honest, I'm impressed. These are low end audiobahns, and the general consensus is they **** for SQ, but they're not half bad. On the SPL side of things, they are LOUD, VERY LOUD. I didn't expect this, but hey, it's a nice surprise. I'm really VERY picky about my mids/highs, but I'm fairly easy to please on the low end.
I'm going to credit the recommendations from Wonderbread (and the nice gain from my jeep cherokee:D ) for this awesome success. Thank you very much, Wonderbread:D
06-25-2003, 12:55 AM
its good to be appreciated once in a while... most of the time im dead wrong, so this time i'm very happy with myself... go team! lol
PS - we would all like to see pics if you can get some!