AquaSonic™PHCH Low Frequency Super Absorber
AquaSonic™ PHCH Low Frequency Super Absorber is a thin, high-stiffness composite sandwich panel engineered for broadband lowfrequency absorption.
It incorporates perforated metal skins, corrugated internal partitions, and micro-perforations to form multiple Helmholtz resonators, achieving nearperfect absorption in the 100–600Hz range ideal for submarines, marine vessels, acoustic chambers, and industrial enclosures
AquaSonic™ PHCH Low Frequency Super Absorber
The AquaSonic™ PHCH Low Frequency Super Absorber is a high-performance acoustic solution specifically engineered for broadband low-frequency sound absorption. Designed as a thin, high-stiffness composite sandwich panel, it integrates perforated metal skins, corrugated internal partitions, and micro-perforations to form multiple Helmholtz resonators. This advanced construction enables near-perfect absorption in the 100–600 Hz range, making it ideal for submarines, marine vessels, acoustic chambers, and industrial enclosures.
Customizable and Tunable
AquaSonic™ PHCH panels are highly customizable to meet specific acoustic requirements. Panel thickness, facesheet properties, perforation patterns, and corrugation parameters can be adjusted to target specific frequencies and bandwidths. Materials can be selected from GFRP carbon fiber, marine-grade metals, or other composites, providing flexibility for both acoustic performance and aesthetic needs.
Mechanical and Environmental Strength
Built to endure the harshest environments, AquaSonic™ PHCH panels offer exceptional stiffness and structural integrity while remaining lightweight. They are impact-resistant, corrosion-resistant, and designed for marine and industrial applications. These panels maintain their performance in demanding conditions, making them reliable for long-term use.
Applications
The versatility of AquaSonic™ PHCH panels allows them to be used in a variety of marine and industrial settings, including:
Ship and submarine hull linings
Engine room soundproofing
Crew cabins and living quarters
Bulkhead and deck acoustic insulation
Naval, commercial, and luxury marine vessels
Performance and Durability
AquaSonic™ PHCH panels achieve peak low-frequency absorption, with normalized thicknesses designed to target the 100–600 Hz range. The panels employ viscous friction in micro-perforations to maximize energy dissipation, ensuring quiet and comfortable environments even in high-noise zones. Their advanced design allows for long-lasting performance with minimal maintenance, providing an eco-conscious and efficient solution for demanding acoustic applications.
For marine vessels or industrial environments where low-frequency noise control is critical, AquaSonic™ PHCH Low Frequency Super Absorbers offer a highly effective, tunable, and durable solution, delivering exceptional sound absorption and long-term reliability.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Code | PSAS-UAP512 |
| NRC | Up to 0.90 (in submerged application) |
| Material Composition | Closed-cell elastomeric foam + marine-grade polymer skin |
| Panel Thickness | 10 mm to 50 mm (customizable) |
| Density | 160–200 kg/m³ |
| Water Absorption | < 0.5% by volume (ASTM C272) |
| Hydrostatic Pressure Resistance | Up to 50 bar |
| Thermal Operating Range | –10°C to +85°C |
| Flammability Standards | IMO FTP Code Part 2 & 5, UL94 V-0 |
| Surface Finishes | PVC-coated, glass-cloth, or customized skin |
| Color Options | Navy Grey, Deep Blue, Custom |
| Installation Methods | Adhesive bonding or mechanical fasteners |
| Available Formats | Pre-cut panels, rolls, modular kits |
Key Highlights
| Category | Details |
|---|---|
| Customization & Tuning |
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| Mechanical & Environmental Strength |
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Why Choose AquaSonic™ PHCH Low Frequency Super Absorber?
The AquaSonic™ PHCH Low Frequency Super Absorber is engineered for ultra-efficient low-frequency sound absorption using a microperforated facesheet and precision-tuned corrugated core. With absorption peaks reaching up to 0.99 at ~580 Hz (60 mm variant), it delivers exceptional performance while maintaining a subwavelength profile—just 1/10 of the wavelength at resonance.
Its construction features:
Panel Thickness Options: 20mm, 40mm, 60mm
Facesheet Thickness: 1–4mm with customizable microperforations (0.4–1.3mm)
Corrugation Layer: ~1mm thickness with additional perforations
This configuration enables broadband absorption across ~290 Hz to ≈1160 Hz, covering over two octaves with α > 0.5. The panel’s lightweight composite build (4–8 kg/m²) ensures easy handling while allowing tuning through thickness, hole size, material type, and perforation geometry.
Designed for durability and adaptability, AquaSonic™ PHCH offers:
High structural rigidity comparable to honeycomb sandwich panels
Impact resistance suitable for load-bearing environments
Corrosion-resistant materials for marine and industrial use
Customizable materials (GFRP, carbon fiber, or marine-grade metal options)
Installation is flexible with adhesive bonding or mechanical fixing, and perforation patterns can be tailored for both acoustic performance and aesthetics.
Ideal applications include:
Marine vessels and offshore environments
Industrial acoustic enclosures
Research and testing facilities
Engineered low-frequency noise control systems
If you require a high-performance, tunable, and durable low-frequency absorber, AquaSonic™ PHCH delivers unmatched efficiency with long-term reliability.
We work closely with you to customize EchoStop™ panels that perfectly fit your space’s acoustic needs and design preferences, ensuring optimal sound control and a seamless aesthetic.
Our team provides professional acoustic consultation and detailed design planning to integrate panels effectively, maximizing both performance and visual appeal.
Certified installers ensure your acoustic panels are fitted precisely and securely, delivering flawless results that enhance sound quality and durability.
EchoStop™ panels require minimal upkeep. With simple cleaning and periodic checks, your acoustic solution will maintain its performance and appearance for years to come.
