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View Full Version : How does this work?



95ZJ
11-08-2006, 09:26 PM
http://cgi.ebay.com/Alpine-Type-R-12-SWR-1242D-Sub-HI-TECH-BOX-ENCLOSURE_W0QQitemZ250046201179QQihZ015QQcategoryZ 32823QQrdZ1QQcmdZViewItem?hash=item250046201179

I understand the tube concept, but why a port when it's such a small enclosure?

acold7dusta
11-08-2006, 09:27 PM
its a band pass

Immacomputer
11-08-2006, 09:27 PM
It's a 4th order bandpass.

EDIT: I lose. :(

95ZJ
11-09-2006, 09:26 PM
Ah, ok.

heyman421
11-09-2006, 09:34 PM
harmon kardon uses a similar design for their computer speakers' subwoofer