Date: July 29, 2002 at 18:57:04 From: jonB, [oproxy3.rockwellcollins.com] Subject: pyramid super blue 12" 4ohm, $60 each
get four for $200 from parts express, put them all in a 12ft3 sized box sealed or sixth order ported tuning to 28hz 2x8"ports 24.5" long, move as much air as 2 18"s !!!!!!! Series parallel them for a 4 ohm load for 102db spl with 1 watt and can put 400 watts rms for a total of about 128db when ported sixth order for 28hz upnot including cabin gain or corner loading.