EMINENCE PRIVATEJACK16 12-Inch Lead/Rhythm Guitar Speakers<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Nominal Basket Diameter: 12"， 304.8mm Nominal Impedance: 16 ohms Power Rating Watts: 50W Music Program: N/A Resonance: 101Hz Usable Frequency Range: 70Hz - 5.5kHz Sensitivity: 100.3dB </span></li><li><span class="a-list-item"> Magnet Weight: 38 ounce Gap Height: 0.31"， 7.92mm Voice Coil Diameter: 1.75"， 44.5mm THIELE and SMALL PARAMETERS Resonant Frequency (FS): 101Hz DC Resistance (Re): 14 </span></li><li><span class="a-list-item"> Front Sealing Gasket: Fitted as standard Rear Sealing Gasket: Fitted as standard Mounting Holes Diameter: 0.25"， 6.4mm Mounting Holes B.C.D.: 11.63"， 295.4mm </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/5195Y5dWndL.jpg" noproxy>