Sonic Acoustic Attenuator

Maximum noise control for industrial settings

Contact our Team
Home > AcousTech Products > Acoustic Attenuators

Superior Noise Reduction

Reduces sound levels by 10 dB(A) to 50 dB(A) while maintaining airflow efficiency.
Let’s Talk

Key Applications

  • Cooling towers
  • Power stations & Energy Facilities
  • Water & Wasterwater Treatment Plants
  • Ventilation systems
  • Compressor Stations

Sonic
Attenuator
Performance

  • Noise Reduction from 10 dB(A) to 50 dB(A) – Effectively lowers sound levels across various environments.
  • Minimal Pressure Loss – Maintains airflow efficiency while reducing noise.
  • High-Temperature Applications – Suitable for extreme environments where traditional materials may degrade.
  • Easy Integration – Seamlessly fits into existing duct and ventilation systems.
  • Podded or Unpodded Options – Available to suit different noise reduction and airflow requirements.
Let’s talk

Key Benefits

  • Durable Construction

    Made from galvanised steel or aluminium with internal fibreglass or foam linings for enhanced noise absorption.

  • Customisable Designs

    Available in cylindrical and rectangular configurations, with podded or un-podded options to suit various applications.

  • Tested & Certified

    Compliant with ISO 7235:2023, ensuring optimal acoustic performance and minimal pressure drop.

  • Versatile Applications

    Ideal for HVAC systems, tunnels, data centres, and industrial machinery, meeting strict noise control standards.

Photo & Video Gallery

  • Download the Sonic Acoustic Attenuators Brochure for Superior Noise Control

    AcousTech’s Sonic Acoustic Attenuators provide industry-leading noise reduction, ensuring compliance with OHS regulations and protecting workers and surrounding environments from excessive noise. Engineered for durability and performance, these attenuators offer:

    • Noise reduction from 10 dB(A) to 50 dB(A)
    • Minimal pressure loss for efficient airflow
    • High-temperature resistance
    • Seamless integration into duct systems

    Whether controlling machinery noise, mitigating sound in data centers or managing HVAC acoustics, Sonic Acoustic Attenuators deliver effective solutions tailored to your needs.Download the brochure

    now to explore specifications, configurations, and expert recommendations!

    Let’s talk

  • Sonic Attenuator Construction

    • Heavy-Duty Materials – Manufactured from galvanised steel or aluminium for durability in harsh environments.
    • Acoustic Linings – Internal fibreglass or foam layers enhance noise reduction.
    • Custom Designs – These are available in cylindrical or rectangular configurations to suit different applications.
    • Circular Silencers – Designed for suction pipelines, offering efficient airflow with minimal resistance.
    • Rectangular Attenuators – Ideal for large-scale HVAC systems, ensuring optimal noise control in rectangular air channels.
    • Podded Cylindrical Silencer
      • Enhanced Noise Reduction – The internal pod disrupts sound waves, increasing absorption and reflection.
      • Efficient Airflow – Maintains airflow while reducing unwanted noise in HVAC systems.
    • Un-podded Sonic Acoustic Attenuator
      • Alternative Noise Control – Uses airflow direction changes, turbulence, and specialised internal geometries.
      • Durable Metal Construction – Made from galvanised steel or aluminium with perforated surfaces for effective sound diffusion.
    • Accessories
      • Acoustically & Thermally Rated Expansion Joints – Custom-manufactured to fit attenuator casings.
      • Exhaust Stacks – Built to withstand environmental loads.
      • Fabrication Compliance – Manufactured to AS4100 and AS1554 standards.

  • Sonic Attenuator Testing & Compliance

    • ISO 7235:2023 Certified – Rigorously tested for acoustic performance (insertion loss).
    • Tapered Splitter Design – Ensures minimal pressure drop while achieving high noise reduction.
    • Airflow Efficiency – Tested to maintain system performance with minimal resistance.

  • How to Specify Sonic Acoustic Attenuators

    • Specify AcousTech Sonic Acoustic Attenuators – Painted in Dulux Grey Nurse colour.
    • Determine Noise Reduction Needs – Designed to meet required insertion loss (dB) at specific frequency bands (125 Hz – 4 kHz).
    • Fabrication & Installation – Built to manufacturer specifications, with quantity and sizes referenced in project drawings.
Bringing silences to these brands

Resources

All Resources
  • Acoustic Attenuators & Silencers Brochure
    Learn More

Get
the
silent
treatment

Let’s Talk