PylePro Model : PSI04Sound Isolation Dampening Speaker RiserSound Dampening Speaker Riser - Studio Speaker Acoustic Platform Sound Isolation (7.5'' x 9.1'' -inches)Features:Includes (1) Studio Monitor Riser PlatformLab-Tested Sound Dampening Acoustic IsolationAssists in Achieving Optimal Audio PerformanceHigh-Density, Engineered Durable Foam Reduces Vibration & Unwanted Audio ResonanceStabilizes and Isolates the SpeakerEffectively Absorbs Bass RecoilAnti-Slip Rubber Speaker Base PadIntegrated 'CNC' Machined Thick Steel Top-PlateUniversal Compatibility: Works with Virtually All Speaker TypesWorks with Studio Monitors, Subwoofers, Loudspeakers, Shelf SpeakersUsed by Musicians, Instrument Players, Performers, Sound Engineers, DJs, MCs, etc.Perfect for On-Stage or In-Studio UseTechnical Specs:Constructed from High-Density Engineered Foam, Steel Top-PlateTop Riser Height: 2.3'' -inchesBottom Riser Height: 1.5'' -inchesMaximum Speaker Weight Capacity: Up to 44.6 lbs.Total Unit Dimensions (W x D x H): 7.5'' x 9.1'' x 2.3'' -inchesThe Pyle Sound Dampening Speaker Riser helps to achieve optimal audio performance. The lab-tested and engineered foam isolator platform helps to eliminate unwanted levels of audio resonance while promoting the flow of 'clean' speaker sound projection. Speaker stabilization, noise-isolation and sound dampening absorption give your audio frequencies free-flow ability, with more natural bass clarity. High-density foam construction and universal speaker compatibility effectively stabilize and reduce recoil for any audio application -- whether on stage or in the studio. Fill your acoustic environment with accurate audio reproduction with the Pyle Sound Isolating Speaker Dampener.