General view

Sonosphere S 124

Electronica

Year
Unknown
Category
Audio
Type
Speaker enclosures
Documentation score
1/5
Last edited
03 OCT 2026

Specifications

Output power
2.5 and 10 VA (2 types)
Impedance
4, 5 or 8 Ω
Frequency response
350 Hz (or 150 Hz) – 15,000 Hz
Features
resonance 350 Hz; volume 2 L; sphere diameter 124 or 174 mm
Weight
1.5 kg

Sources: [1]

Description

The Sonosphere S 124 is a sonosphere – a spherical speaker enclosure – made by Electronica in Bucharest [1]. The S 115 and S 124 sonospheres are recommended for car sound; they are made of black or coloured plastic and have a circular loudspeaker [1].

From 1955 all Romanian radios and television sets had loudspeakers made in Romania, at Radio Popular and then Electronica; more than 20 million were made [1]. In 1989 the works could make, to order, 18 types of circular loudspeakers (from 0.2 W subminiature types to 10 W), 11 elliptical types, 28 types for outdoor use (megaphones, loudhailers, horn loudspeakers), 6 types of speaker enclosures, 2 types of headphones and 6 types of sonospheres [1]. Membrane technology was much improved after a Philips licence was bought in 1968 [1].

Documents

No documents available yet.

References

  1. [1]D. F. Lăzăroiu, N. Millea et al. – „Electronica românească. O istorie trăită”, vol. I, AGIR, section II.6 „Componente, subansamble și ansamble conexe”, II.6.1 „Evoluția fabricației de difuzoare”, pp. 233–234, 242