IF YOU ARE ORDERING THIS ENCLOSURE FOR 6.5" SPEAKERS, PLEASE MEASURE YOUR SPEAKERS FIRST. THE LARGEST SPEAKER THIS BOX WILL ACCEPT IS 6.5" IN DIAMETER. IF YOUR SPEAKER IS LARGER THAN 6.5" IN DIAMETER PLEASE DO NOT ORDER. VOICEBOX BY MENACE AUDIO - EMPTY 4 HORN BOX FOR 2" COMPRESSION DRIVER HORNS