Model REF500 & REF600 -Reference Sound Source

The REF500 (120/240V, 50Hz) and REF600 (120/240V, 60Hz) Reference Sound Sources are an excellent tool for providing accurate and repeatable reference sound levels. These sources offer extremely flat response over a broad frequency range and are ideal for use in such applications as sound power, sound absorption, and sound insulation measurements. The REF500/600 can be used for qualification tests on acoustical environments, sound absorption determination by the steady-state method and for Sound Power determination.