Comes with 4 panels
Low Price Sonex Junior Acoustic Tile Panels Have Thousands of Uses...
Sonex. To acoustic experts the name practically defines low cost, highly effective acoustic treatments. You've seen Sonex before on album covers, loudspeaker literature, in books on acoustics, etc. It's also the recording industry standard for deadening studios, master sound labs, etc.
Sonex panels are made of open-cell poly foam cut into scientifically-proven acoustically absorbant shapes with up to 300% more surface area than flat acoustic material such as cork or acoustic ceiling tiles.
Easy to install Sonex Juniors are 24" by 24" by 2" thick acoustic foam tiles conveniently packed four to a box. Juniors install easily in a wide variety of applications from listening room walls and ceilings to inside cabinets to damp noise from motors, pumps, etc. Juniors mount easily with tacs, double-stick tape, velcro, or construction adhesive (not included).