SB 12

Omnidirectional sound sources
SB 12 is a omnidirectional sound source with 12 speakers installed on a quasi-spherical structure resembling a dodecahedron. The product is suitable for building acoustics-related tests, such as reverberation time and airborne sound insulation measurements.

Specifications

Parameters
Standard	ISO 140-3, ISO 140-4, ISO 3382, GB/T 19889.3, GB/T 19889.4
Diameter	285mm (including speaker), 280mm (spherical body)
Rated Impedance	6ohm
Rated Power	250W (continuous)
Frequency range	125Hz ~ 12.5kHz
Sound power level	120dB (pink noise); at least 100dB per 1/3 octave from 125Hz to 2.5kHz
Audio interface	speakON audio interface
Loudspeaker unit	Rubidium magnet loudspeaker, 4-inch diameter, 8Ω, 50W