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Anechoic Wedges

Anechoic Wedges

Anechoic Wedges are advanced acoustic treatments specifically designed to absorb sound waves across a broad frequency spectrum, creating an environment free from echoes and reverberations. These wedges are crafted from high-density acoustic foam, precision-cut into wedge shapes to maximize sound absorption efficiency.

NRC
1.0
Thickness
Wedge depth calculated from the target cut-off frequency
Panel size
Custom, to chamber specification
Size tolerance
±5%
Density
32 to 50 kg/m³
Material
High-density acoustic foam

Enquiries answered within 48 hours. BOQ, specification and drawing support for project quantities.

01 / The product

Anechoic Wedges

Ideal for use in anechoic chambers, recording studios, testing laboratories, and research facilities, Anechoic Wedges are engineered to meet the most demanding acoustic requirements. Their unique wedge design traps and dissipates sound energy, preventing sound reflections and external noise interference.

With their exceptional sound absorption capabilities, Anechoic Wedges ensure accurate sound measurement, recording, and analysis, making them indispensable for precision acoustic applications.

  • Why Choose Anechoic Wedges?

    Anechoic Wedges are the gold standard for sound absorption and acoustic isolation in highly controlled environments. Their precision-engineered wedge design, high-density acoustic foam, and customizable sizes make them essential for applications requiring absolute sound clarity and accuracy.

    Anechoic Wedges – Precision in Sound Absorption, Excellence in Acoustic Control.

  • Key Benefits

    • Maximum Sound Absorption: Eliminates echoes and reverberations across a wide frequency range.
    • Precision Design: Wedge-shaped profile maximizes sound absorption efficiency.
    • High-Density Acoustic Foam: WEnsures superior performance and durability.
    • Noise Isolation:Blocks external noise interference for accurate testing and recording.
    • Customizable Sizes: Available in standard and tailor-made dimensions.
    • Lightweight Design: Easy to install and handle.
    • Fire-Resistant Material: Built with fire-retardant acoustic foam.
    • Low Maintenance: Dust-resistant and easy to clean.
  • Applications

    • Anechoic Chambers: Eliminate all sound reflections for precise sound measurement.
    • Recording Studios: Achieve crystal-clear recordings with zero reverb.
    • Testing Laboratories: Enable accurate acoustic measurements and experiments.
    • Broadcast Studios: Ensure noise-free audio and voice recordings.
    • Home Studios: Optimize small spaces for professional-level sound quality
    • Research Facilities: Used in advanced sound wave and frequency analysis experiments.

    How Anechoic Wedges Work:

    • Sound Wave Entry: Sound waves enter the wedge-shaped foam structure.
    • Energy Dissipation: The sound energy is absorbed and dissipated within the foam material.
    • Echo Elimination: No sound waves are reflected back, eliminating echoes and reverberation.
    • Acoustic Precision: Creates a pure, controlled acoustic environment for accurate testing and recording.

02 / Specifications

Technical specifications

MaterialHigh-density acoustic foam
Manufactured byMMTPL (Mahabir Multi Tech Private Limited), Palwal Plant, Haryana, India
Panel sizeCustom, to chamber specification
ThicknessWedge depth calculated from the target cut-off frequency
Density32 to 50 kg/m³
NRC1.0
Acoustic test standardASTM C423
Fire ratingUL 94 Class HS1 fire retardant available on request; standard grade supplied non-FR
ColoursCharcoal Black, European Blue, MMT Orange, Stone White, Wine, Fire Red
Size tolerance±5%
InstallationDirect adhesive application or mounting system
Country of originIndia
Absorption rangeMid to high frequency; wedge depth sets the low-frequency cut-off
CustomisationMultiple sizes, shapes and configurations
  • Material

    High-Density Acoustic Foam

  • Standard Wedge Depth

    Customizable based on frequency absorption requirements

  • Absorption Range

    Effective across mid to high frequencies

  • Fire Retardancy

    Fire-resistant as per safety standards

  • Installation Method

    Direct adhesive application or mounting system

  • Customization

    Available in multiple sizes, shapes, and configurations

  • Maintenance

    Vacuum on a low setting to remove dust. Do not wet-clean or compress the wedge tips.

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Frequently Asked Questions

Who manufactures an anechoic foam wedge in India?

MMTPL (Mahabir Multi Tech Private Limited) manufactures it at its Palwal plant in Haryana, India, and supplies studios, offices, cinemas and industrial sites in India and 25+ export markets.

What is the NRC of an anechoic foam wedge?

NRC 1.0, measured to ASTM C423. That is effectively total absorption at the tested frequencies, which is what an anechoic chamber requires. The wedge depth, not the NRC, sets how low in frequency the chamber stays anechoic.

What density is the foam?

The foam is high-density open-cell polyurethane at 32 to 50 kg/m3, which is what gives it absorption at mid and high frequencies rather than just at the top end.

How is anechoic wedge depth calculated?

Wedge depth sets the low-frequency cut-off of the chamber. It is calculated from the lowest frequency the chamber must be anechoic at, so the depth is specified per project rather than sold as a stock size.

Is the foam fire rated?

Standard grade is supplied non-FR. A UL 94 Class HS1 fire retardant grade is available on request, which is what most institutional, government and tender projects specify.