Quantum Jr

Introduced: 1978
Dimensions: 63 x 37 x 30 cm
Bass: 1 x 30 cm
Mids: 1 x 3,8 cm
Highs: 1 x EMIT
Suggested for amplifiers with: 25-200 Watts per channel
Frequency range: 40 Hz - 32 kHz
Crossover frequencies: 600 Hz, 4000 Hz
Suggested price (pair):  778 $

Click below for the owners manual.
page1, page 2, page3

You can view a brochure of the Quantum Jr here.
page 1, page 2

A technical sheet with crossover schematics can be seen here.