Monitor IIA

Introduced: 1975
Dimensions: 105 x 38 x 33 cm
Bass: 1 x 30 cm
Mids: 1 x 3,8 cm dome, 1 x 2,5 cm dome
Highs: 1 x 360 WTL tweeter on the top
Suggested for amplifiers with: 45-250 Watts per channel
Frequency range: 22 Hz - 28 kHz
Crossover frequencies: 450 Hz, 5000 Hz, 10 kHz
Suggested price (pair): 898 $

A technical sheet with crossover schematics can be seen here.