Reference Standard II A / B

Introduced: 1981
Dimensions: 140,5 x 56,5 x 38 cm
Weight (system): 70 kg
Bass: 2 x 25 cm
Mids: 3 x EMIM
Highs: 3 x EMIT (one on the back)
Suggested for amplifiers with: 100-250 Watts per channel
Frequency range: 25 Hz - 32 kHz
Crossover frequencies: 175 Hz (B: 150 Hz), 800 Hz, 3000 Hz, 8000 Hz
Special: equalizer for bass drivers
Suggested price (system): 2.700 $

A technical sheet with crossover schematics can be seen here.

Here you can read a review of the RS II A from the german Stereo magazine. It is written in german as you can imagine.
page 1, page 2, page 3