Sound Sources And Amplifiers

A sound source that fulfills the standards for building acoustic measurements is required for professional use. Brüel & Kjær offers a complete range of sound sources for room and building acoustics, including our Tapping Machine, and 12-speaker omnidirectional OmniPower™ Sound Source. The sound sources are ideal with our range of Power Amplifiers and provide a flexible setup for any acoustic task with features such as wireless signal transmission for unhindered measurement range and flexibility.

  • OmniPower Sound Source

    Type 4292-L

    OmniPower Sound Source

    OmniPower Sound Source Type 4292-L is a a dodecahedral, high-power, omnidirectional loudspeaker designed to measure sound insulation and perform room acoustics measurements.

  • Type 4250 vvs front view



    リアルタイムに体積速度を現場で正確に計測するため特別な二つのマイクロホンを組み込んだ、すぐに使用可能な体積速度音源。 <br>タイヤやエンジン近傍などの密閉状態から、反射面からある程度の離れたオープンな状態まで、幅広い音響環境に適しています。

  • Smart power amplifier Type 2755

    Type 2755

    Smart Power Amplifier

    A powerful, compact, and lightweight power amplifier with an integrated signal generator and wireless remote-control capabilities. HBK 2755 is ideally suited for room and building acoustics measurements, as well as source path contribution (SPC) measurements driving HBK’s sound sources

  • measurement Amplifier Type 2735



    電気音響および汎用アプリケーション用に設計された、コンパクトで高性能な2×35 Wパワーアンプ。

  • Tapping Machine Type 3207

    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. 

  • Echo Speech Source Type 4720


    語音明瞭度測定ソフトウェア - エコースピーチ音源


  • Reference Sound Source Type 4204

    Type 4204

    Reference Sound Source

    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.