STP Bronner SPL Extreme

Technology Line: Special Line

Sheets per Box: 10 sheets

Thickness: 4 mm

Sheet Dimensions: 250 x 400 mm (Total coverage: $1\text{ m}^2$)

Key Specs: Ultra-rigid, professional-grade composite competition damper. Hardens outer panels significantly to prevent acoustic pressure loss, emphasizing low frequencies and stabilizing high-SPL subwoofer setups.

Best Application: High-end car audio doors, SPL subwoofer enclosures, boot floors, and roofs.