1) High Quality Aluminum Super Tweeter 2) Competitive Manufacturer Price Aluminum Tweeter ( TW-601 )POWER: 50W RMS / 100 W MAX.IMPEDANCE: 4-8 OHMSFREQ,RESP: 1KHZ-25KHZS.P.L. (1W/1M): 106 DBMAGNET: Dia 70*15 * 2MOUNTING HOLE: Dia 73mmDIMENSION: Dia 90*88MMCARTON SIZE:49.5*22*20CM, 20PCS/CTN, G.W./N.W.: 16/14KGS Aluminum Tweeter ( TW-601 )