In principle, yes, if 4 ohms is selected for the setting. Since the efficiency is not apparent from the tech. Since the efficiency is not apparent from the technical data, a reservation must be made for large rooms and levels above 100dB.

General

Manufacturer: Quadral
Model: Rubin Mk II
Year of manufacture:
Made in: Germany
Colour: black
Dimensions: 900 x 225 x 265 mm (H x W x D)
Weight: approx. 15 kg
Original price 1992 approx.: 1000 CHF, 600 Euro

Technical data

Construction: 4-way bass reflex, floorstanding speaker
drivers:
woofer: 2x 170 mm
midrange driver: 1x 110 mm
tweeter: 1x 25 mm
Power handling (nominal/music): 120 / 200 Watt
Efficiency:
Frequency response: 30 - 22,000 Hz
Transitional ranges: 150 / 800 / 2,800 Hz
Impedance: 4-8 Ohm

Special features

amazingly good presence and natural sound. Well suited for classical music.