Johns Manville Whispertone® Wallboard is a raw acoustical fiberglass board we use as a sound absorbing core for our fabric wrapped acoustical panels. We can manufacture panels for you using many of the Guilford of Maine fabrics listed on our website. Just let us know which fabric you want and how many panels you require. Should you wish to build your own panels, you may also purchase this acoustical board, any of our panel fabrics and mounting hardware.