3-Point Acoustic Wedges - Obsidian

High-performance 6″ interior acoustic wedges in Obsidian, utilizing Basotect® Ecobalanced Melamine Foam for superior low-frequency control and Class A fire-rated safety.

Part Number: TA-007-OBSIDIAN
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Engineered for environments where low-frequency management is critical, Techlite® 3-Point Wedge Acoustic Panels in Obsidian combine bold architectural geometry with measurable acoustic results. Designed at a full 6-inch thickness, these wedges deliver exceptional broadband absorption, with low-frequency performance that stands apart. For architects, this enables confident specification in performance-driven spaces; for interior designers, it offers sculptural depth with functional intent; and for sound engineers, it provides quantifiable data aligned with recognized testing standards.

Tested in accordance with ASTM C 423-17 Standard Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method, the 6″ wedge profile achieves a Noise Reduction Coefficient (NRC) of 1.25 and demonstrates 58% absorption at 125 Hz—a critical range for controlling bass buildup and room boom. This level of low-frequency absorption makes the panel especially effective in studios, theaters, conference facilities, educational spaces, and other interior environments where speech clarity and tonal balance are essential.

Manufactured utilizing Basotect® Ecobalanced Melamine Foam, these panels provide lightweight installation, dimensional stability, and long-term acoustic reliability. The material is Class A fire-rated per ASTM E 84, supporting life-safety compliance in commercial interiors. Additionally, Basotect® Ecobalanced Melamine Foam supports sustainability objectives and may contribute toward LEED credits through environmental transparency and responsible material sourcing.

Obsidian Coloration & Visual Character

Obsidian is a deep, dark charcoal acoustic foam with subtle blue undertones. Depending on lighting conditions, it can range from a rich charcoal gray to a dark navy hue—and when installed in high ceilings or low-light environments, it presents as visually black.

The result is an acoustic material that integrates seamlessly into contemporary architecture while delivering the performance Techlite® is known for. For applications requiring an ultimate, rich black appearance, Obsidian panels may be coated utilizing Techlite®’s proprietary paint system.

[Pictured Right: Obsidian foam color under various interior lighting]


 

Sound Absorption Coefficient [Sabins / ft²]

Finish Thickness [in] 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz SAA NRC Mounting Type
White 1.50 0.17 0.28 0.84 0.99 1.03 1.04 0.78 0.80 A
2.00 0.23 0.48 1.08 1.19 1.16 1.11 0.97 1.00 A
3.00 0.45 0.87 1.26 1.07 1.06 1.10 1.05 1.05 A
Light Grey 1.50 0.17 0.28 0.86 0.99 1.02 1.02 0.79 0.80 A
2.00 0.20 0.51 1.05 1.05 1.03 1.05 0.91 0.90 A
3.00 0.36 0.90 1.24 1.04 1.02 1.09 1.05 1.05 A
Obsidian
(Official test results pending; performance expected to align with TECHLITE® light gray melamine foam.)
1.50 0.17 0.28 0.86 0.99 1.02 1.02 0.79 0.80 A
2.00 0.20 0.51 1.05 1.05 1.03 1.05 0.91 0.90 A
3.00 0.36 0.90 1.24 1.04 1.02 1.09 1.05 1.05 A
Absorption results tested in accordance to ASTM C 423-09a

Sound Absorption

Sound Absorption Testing to ASTM Standard C-348-85 indicates a better than 90% absorption coefficient at a frequency of 2000 Hz when using 2” thick TechLite® foam. Combined with a Class A fire rating, excellent thermal insulating value, its light weight and low toxicity, TechLite® is an excellent choice for your application.

*The information contained in this data sheet derives from accredited laboratory tests, but without warranty. The physical properties are typical values and intended for reference only. They are not specifications. Recommended uses are based on testing, but it is always recommended the customer evaluate the product suitability under their actual process conditions.

Additional Information

Benefits and Highlights

  • Open-cell, fiber-free
  • Very lightweight
  • Easy install with construction adhesive
  • Architecturally pleasing
  • Acoustically-tested in accordance with ASTM C423-17 for Sound Absorption
  • ASTM E 84 Class A (Official test results pending; performance expected to align with TECHLITE® light gray melamine foam.)
  • Highly sound-absorptive (NRC)
  • LEED points
 

Specifications

  • Size 12" x 12", Custom
  • Color Obsidian
  • Coating Option Pitch Black
  • Thickness 6", 8", Custom
  • Material Basotect® EcoBalanced Melamine Foam
  • Min. Service Temp. -40°F
  • Max. Service Temp. 350°F
  • Density: 0.53 +/- 0.09 lb/ft3
  • Fire Rating: Official test results pending; performance expected to align with TECHLITE® light gray melamine foam. ASTM E 84 Class A | Flame Spread Index = 10 / Smoke Developed Index = 55