Remarks:
As part of a new breed of loudspeaker from Bang & Olufsen, the original Beovox S45 was the first model to carry the ‘S’ prefix in this very popular range. It was originally designed as a three-way loudspeaker (type 6302) but was revised in 1983 as a two-way speaker system (type 6427).
Beomaster 2000, Beomaster 3400 and Beocenter 3500 were the recommended systems to power the original Beovox S45.
When it was revised in 1983, and looking similar to its larger Beovox S55 and S80 counterparts, the Beovox S45 (type 6427) was just a little narrower depth-wise. Inside its wooden cabinet was fitted with but two drivers: a 210mm woofer and a 25mm tweeter which for most people’s use was quite adequate and gave a rich, mellow sound. Because of their reasonable pricing and quality sound the Beovox S45 proved very popular over its production lifetime.
RMS power handling capacity : 45 W
Music power handling capacity: 75 W
Impedance: 4 - 8 ohms
Frequency response +4 -4 dB : 38 - 20,000 Hz
Frequency response +4 -8 dB: 60 - 20,000 Hz
Power at 96 dB SPL : 4 W
Sensitivity: 5 W
Distortion 250 - 1000 Hz <1.5%
Distortion 1000 - 2000 Hz <1 %
Distortion > 1000 Hz <1%
Woofer: 20,3 cm
Phase-link filler driver: 90 mm
Tweeter: 2.5 cm
Crossover frequencies: 2KHz
Angle of Dispersion: 120 degrees
Net volume: 16.1 litres
Gross volume: 29.5 litres
Dimensions W x H x D: 26.5 x 52.5 x 20cm
Weight : 7 kg
https://beo.zone/en/beovox-s45-passive-loudspeakers/