WTLC

Introduced: 1976
Dimensions: 104 x 28 x 28 cm
Bass: 2 x 20 cm (one firing on the floor)
Mids: 2 x 3,8 cm (one on the back)
Highs: 1 x 360 WTL tweeter on the top
Suggested for amplifiers with: 20-200 Watts per channel
Frequency range: 35 Hz - 28 kHz
Crossover frequencies: 500 Hz, 2000 Hz, 8000 Hz
Suggested price (pair): 658 $

A technical sheet with crossover schematics can be seen here.