Back in 1980 I made speakers for my basement, one of many systems I have. The tweeters and mid-ranges drivers were placed in spherical polystyrene bead board enclosures. The eight-inch woofers were in hollow spherical enclosures made from particle board and covered with 1/4" felt. I suspended these six time-aligned speakers from the ceiling using ropes. For the sub woofer I built a "big foot" with a 15" woofer from an article in Audio. It is the size of a refrigerator and I laid it on it's back. It was electronically crossed over at 45 Hz. I still listen to this system and have a Yamaha PSR 190 keyboard hooked up to it. The six speakers use a custom-made passive crossover from recommended parts I got from Bob Ludwig of St. Louis. I currently drive the six speakers with a McIntosh 2300 solid state power amp and the sub with a Hsu class AB sub amp rated at 250 W per channel. The spherical
polystyrene bead board enclosures
used for the
tweeters and mid-ranges
are quite non-resonant. The system sounds well balanced.
