The PR1821 is an 18" Passive Radiator designed for the SDX15 subwoofer. It features a cast aluminum frame and consists of an MDF disk/diaphram and large half roll surround.
Fs - 3.65HzQms - 67.72Vas - 1840LMms - 2100gCms - .9mm/NSd - 1200cmXmax - 3" P-P
