Date: March 29, 2002 at 17:08:54 From: dkiley, [user-112vcjl.biz.mindspring.com] Subject: Re: port length
It's a two way speaker. The internal volume is 31076 cubic cm. The tuning frequency is not stated as such in the plans, but the free air resonance of the sub is 27Hz. Hope this helps. Thanks for your quick response!!!!!!!