2x surrounds. Radio Shack, Optimus, Realistic: T120, 400, 650, 660, 950, 1000, Pro X88, Pro 4000 Midrange, Mach 2 Midrange, Mach Two Midrange, C53, CS5, LS3, LX511, PRO X55AV, SP0152, 1218, 12126, 12110, 12128, 12134, 12135, 1260, 1261, 1265, 1290, 1296, 40-2042, 40-1130, 40-2047, 40-2082, 40-5035, 40-4078, 40-285, 40-5003, 40-5007, 40-5011, 40-5038, 40-4065, 40-5036, 40-5037, PRO-X880AV, 40-2084, etc.
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