Active 3-way loudspeaker - 2:

The prototype loudspeaker system is housed in a 90 cm (36 in) high enclosure, details of which are shown in this article. The drive unite are a 200 mm (8 in) 4 n woofer, a 50 mm (2 in) 8 n mid-range untt. and a 25 mm (I in) 8 n tweeter.