We have for sale Owens Corning 703 fiberglass unfaced acoustic panels in both 2 inch and 4 inch thickness.  These panels are 2 foot by 4 foot and can be easily modified using a serrated knife or best an electric carving knife.  These are the industry standard for sound capture and control.  The 2" panels are for high and mid range sound control and the 4" panels are for bass control.  Typically these panels are finished with a fabric cover.  We can provide guidance on finishing and installing the panels as well as a visit to our music room where the panels have been installed for over 5 years.   We have some panels new in boxes and some panels that have some finish work.  Price $15 per panel.  Contact Rob 850-570-9325