Parameters Model No:CSL-10 Type: subwoofer Number of ways:1 Diameter: 10 ”-250mm Products Frame:Aliuminum Cone: Non-pressed Sensitivity (1W1M):87dB/m Nominal impedance:4/8 ohm RMS power handling:650W Model No:CSL-12 Type: subwoofer Number of ways:1 Diameter: 12 ”-300mm Products Frame:Aliuminum Cone: Non-pressed Sensitivity (1W1M):88dB/m Nominal impedance:4/8 ohm RMS power handling: 800W   Specifications Unpressed on-paper cone for smooth frequency response 2.5 ” aluminium voice coil for high efficiency and power handling Barium ferrite magnet for maximum energy transfer Rubber suspension for deep frequency response Extended vented pole piece Designed for small sealed and vented enclosures