Sound Sources / Loudspeakers and Amplifiers
A sound source that fulfills the standards is required for building acoustic measurements. Brüel & Kjær offers a complete range of sound sources for building acoustics measurements, including our Tapping Machine, and our 12-speaker omnidirectional OmniPower™ Sound Source. The sound sources are ideally matched with our range of Power Amplifiers, which have been specifically designed for acoustic applications, with features such as wireless signal transmission for unhindered measurement range and flexibility.
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Type 2735
A compact, highperformance, 2 × 35 W power amplifier designed for electroacoustic and general-purpose applications.
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Type 2734
Power Amplifier for building and room acoustics
A power amplifier designed to power sound sources in building and room acoustic field measurements.
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Type 3207
Tapping Machine / Impact Sound Source
Tapping Machine Type 3207 is an impact sound generator for measuring impact sound levels. The generator uses five hammers each weighing 500 g and operating at 2 Hz dropping from a height of 40 mm, giving an operating frequency of 10 Hz.
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Type 4204
Reference Sound Source is optimized for measuring room and building acoustics. It is also useful in the field of building acoustics to determine the sound absorption and sound insulation of a room.
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Type 4292-L
OmniPower Sound Source Type 4292-L is a a dodecahedral, high-power, omnidirectional loudspeaker designed to measure sound insulation and perform room acoustics measurements.
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Type 4720
Echo Speech Source quickly and easily performs speech intelligibility measurements in accordance with IEC 60268-16.
