BSWA VSS058 Low Frequency Volume Source

Low frequency volume source is omni sound source of volume speed which source diameter must be close to the wave length.

VSS058 low frequency volume source was developed by BSWA for reciprocity method of noise transfer function or acoustic transfer function reciprocity test, TPA (Transfer Path Analysis) test and acoustic excitation test such as sound insulation test, material absorption coefficient test, SEA (Statistical Energy Analysis) test. The frequency response can cover 50Hz to 800Hz. The sound pressure level at 1 meter away is up to 98dB.

VSS058 embedded an internal reference microphone to monitor the volume speed output. The reference microphone is pre-polarized microphones MPA251 which can be calibrate by CA111 sound calibrator.
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VSS058 has a high power loudspeaker. The output power level is up to 200W continuous. The metal shield before loudspeaker can protect again the damage to diaphragm.

Key features of VSS058

  • Frequency response: 50Hz~800Hz
  • 200W continuous sound power output
  • Up to 98dB sound pressure level (1 meter away)
  • Internal reference microphone (can be calibrate)
  • Light weight, made of aluminum alloy and ABS
  • SPEAKON audio connector
  • Universal excitation source, removable front cover
  • Metal shield to protect speaker diaphragm
  • Sturdy metal handle, M10 thread help to fix

Typical areas of application:

  • Reciprocity method of noise transfer function or acoustic transfer function reciprocity test
  • TPA (Transfer Path Analysis) test
  • Acoustic excitation test such as sound insulation test, material absorption coefficient test, SEA (Statistical Energy Analysis) test

Data Sheet & Product Information

Specifications - Technical Information

Frequency Response:
  • 50Hz~800Hz
Sound Power Output:
  • 200W continuous
Impedance:
  • 8 Ω
Sound Pressure Level:
  • 98dB (1 meter away)
Reference Microphone:
  • MPA251 (ICP power), sensitivity: 10mV/Pa
Input Connector:​
  • SPEAKON audio connector
Sound Source Dimensions (mm):
  • W380xH480xD340
​Package Dimensions (mm):
  • W600xH650xD450
Weight (without Package):
  • 15.8kg
Weight (with Package):
  • 31kg