PROSPEC Decibel Drop™, a high-performance viscoelastic damping compound, decreases the sound traveling to adjacent rooms. It is easy to install between layers of drywall, plywood or sub flooring in new and retrofit applications. PROSPEC Decibel Drop is ideal for use in commercial, broadcast/audio, home theater and multifamily interior spaces.

Offers exceptional damping properties
Superior performance in low frequencies
Easy to install between layers of drywall, plywood or sub flooring
Can be used on walls, floors and ceilings
Use in new construction or retrofit applications
Install on one or both sides of the wall
Class 1 fire-rated
Click on one of the links below to view assembly diagrams.

Assembly Diagrams: walls, floors, and ceilings
PROSPEC Decibel Drop with Hat Channel
PROSPEC Decibel Drop with Sound Clips and Hat Channel
Underlayment Alone
PROSPEC Decibel Drop Alone
Combination Ceiling Assembly
Separate Wall Studs Supporting Separate Ceiling Joists
Spring Hangers and Staggerd Stud Assembly
Noise Travel Paths Through Walls, Floors, and Ceilings
Noise Travel Paths With Decibel Drop Through Walls, Floors, and Ceilings

PROSPEC Decibel Drop with Hat Channel (Download PDF)

PROSPEC Decibel Drop with Sound Clips and Hat Channel (Download PDF)

Underlayment Alone (Download PDF)

PROSPEC Decibel Drop Alone (Download PDF)

Combination Ceiling Assembly (Download PDF)

Separate Wall Studs Supporting Separate Ceiling Joists (Download PDF)

Spring Hangers and Staggerd Stud Assembly (Download PDF)

Noise Travel Paths Through Walls, Floors, and Ceilings (Download PDF)

Noise Travel Paths With Decibel Drop Through Walls, Floors, and Ceilings (Download PDF)