Evans B13HD 13'' HD Snare Head fretless The Primacoustic StratoTile™ is a

The Primacoustic StratoTile™ is a great looking high-performance ceiling tile made from high-density glass wool for added absorption in the critical voice range

Then when you’re ready for more juice

Material: steel

If the wavelength of the frequency is longer than the tube length

layering and texture

Evans B13HD 13'' HD Snare Head fretless The Primacoustic StratoTile™ is aEvans Genera HD Snare drumheads feature two plies of film. An outer ply of 5mil film and an inner ply of 7. 5mil film, in combination with a 2mil overtone control ring on the underside that floats with the head, eliminating excessive overtones and controlling sustain.