Acoustic Research 6.5" Speaker Foam Surround Repair Kit - 6.5 Inch Fits Acoustic Research AR, 3pi, 8B, 8BX, 8LS, 10, 112, 122, 162 (Spirit), 1210069, 1210073, 1210074, 1210133, 1210074-1A, 1210075, 1210078, 1210078-1A, 1210091, 1210158-4, 12100730, 12101301, 12101584, 19B, 35BX, 44BX, 50-T, 55BX, 6BX, 8B, 8BX, 8BXI, 8LS, Connoisseur, Connoisseur 40, L63, M4, S40, S50, SAT660, Spirit 112, Spirit 122, Spirit 162, STC Subwoofer, TSW100, TSW110, TSW313, TSW315, TSW410, TSW510, TSW610, TSW710, TSW810, TSW910, W-170CP (380045) and others that match the measurements Same surrounds that professional reconers use; not cheap Chinese imitations! Complete 2 speaker foam surround installation kit - 6.5 inch Easy to follow step-by-step installation instructions and videos FREE phone support at 1-800-397-9575 and FREE shipping within the U.S.