Acoustical Composites are products that combine both Noise Barrier & Sound Absorber materials. Typically, they offer the most significant overall noise reduction. Acoustical Composites are rated in both "NRC" and "STC" numbers. IES - 2000 offers two basic types of composite panels "BA" (Barrier/Absorber Composite) and "ABA" (Absorber/Barrier/Absorber Composite) IES-2000 Acoustical Composites: - Available in roll form with either bound edges or unbound edges - available as modular panels with grommets and velcro - acoustical jackets, die-cut pieces, custom fabrications - Transmission Loss ratings up to STC-32 - Sound Absorption ratings up to NRC-1.05
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