Date: August 11, 2000 at 12:30:37
From: Richard Greene, [ncache1.ford.com]
Subject: An awful 12" sub driver or mediocre 12" woofer

The fs of 34Hz. is too high for a sub driver The xmax of 4mm is too low for a sub driver or even a plain old woofer The Q is also too high for me - others might disagree. Don't waste your money. You can't build a good speaker with a cheap driver like this. You could build a sub for a small room (150 square feet or less) stereo system with this 12" driver (probably two drivers)where the limited xmax would not be a problem and room gain/corner placement would help below 30 Hz. I built a small room sub with a 15" Pioneer DVC driver and only 3mm xmax -- but it's almost worthless for use in a medium-size or large room.