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BAC - Bass Buster

Bass Buster bass absorber by Acoustical Surfaces
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Low-Frequency Sound Absorber

BAC Bass Buster is a high-performance low-frequency sound absorber. This recycled bonded cotton material has incredible sound absorption at low frequencies, helping keep the sound where you want it. This material is ideal behind acoustical fabric, perforated or slotted panel surfaces, and other studio pieces or wherever bass sound needs to be reduced and absorbed. Some other features of this product include:

  • Low Frequency – High Performance
  • Durable
  • User Friendly
  • Eligible for LEED™ Credits (more information)

Product Testing & Information

Product Specs


1.5 lb. density, recycled bonded acoustical cotton fiber.


Exceptionally good low frequency sound absorber. Ideal behind acoustical fabric, perforated or slotted panel surfaces.


This bass sound absorber is great for industrial, architectural or pro audio applications. Machinery and mechanical rooms. For harsh noisy environments that require high performance, low frequency noise reduction. Above acoustical ceiling grid systems. This low frequency absorber user friendly alternative to glass fiber insulations.




2′ × 4′ (Special sizes available upon request based on minimum quantities)




ASTM E84, Class A. Flame Spread: 23.


Adhesive, mechanical clips, friction fit.

Reverberation Demonstration

BAP – Bass Buster – Noise Reduction Coefficient
Frequency 125Hz 250Hz 500Hz 1KHz 2KHz 4KHz NRC
4″ 0.95 1.30 1.19 1.08 1.02 1.00 1.15

bapbasschart by Acoustical Surfaces