Date: March 30, 2002 at 19:39:23 From:Adrian Mack, [dialup-196-59.wasp.net.au] Subject: Re: Using Different Ports for Tempest
An alternative to using adire audio ports is simply PVC pipe, available at any hardware store. If you were going to use a single port for your 194L Tempest subwoofer, I would reccomend using the largest diameter possible, so if you could fit a 4" diameter port by 17.6" long, that would be great. However if this will not fit in your enclosure, you could always use a 3.5" by 13.2" port and flare to slow down air speed and reduce port noise. Have you considered a passive radiator design? Two Adire PR-15 passive radiators would also work very well (and look VERY cool!) but do add a fair bit of cost to the system.