Enclosure Design Help! (1 Viewer)

[Miklsan K]

I ran this last week, but didn't get any feedback. Could you guys take another look? Thanks.
I have not done a DIY project for many years (since my younger car audio days!), but I think I am ready to dive in again. I want to experiment with a few projects first to get my feet wet. I have a couple of 15 inch drivers at my disposal that I would like to use for a subwoofer project. The specs are listed below. I have played around in LSPcad and it looks like I can get something in a managaeble 4-5 cu. ft. vented enclosure tuned pretty low. Could a few of you more experienced guys run these specs for me and suggest an alignment? I am looking for good performance below 60Hz, in a moderate room (11W x 19L x 9H) with a 200W plate amp. Ease of construction would be greatly appreciated. I appreciate your help.

Piston D 0.33 M
Re 3.25 Ohm
Vas 9.28 Ft^3
Fs 19.0 Hz
Qes 0.35
Qms 12.23
Qts 0.34
nO 0.49%
Efficiency 88.9 dB
Xmax 8.26 mm one way
Power 250W

 

[Chris Tsutsui]

Some simple instructions for a reinforced enclosure check out Adireaudio. They have different 15" sub designs, some vented and some not and the measurements/specs are posted.

I'd start with one of adires designs and modify it unless you plan on totally designing an enclosure yourself.

I don't think there will be someone here to design the sub for you, maybe if you tell us your preferences for ports, their size, volume, and tuning point.

 

[Pete Mazz]

Using both drivers in a single enclosure ~8 cu ft tuned to 18 looks good. If you want more "punch" tune to 25.

Pete