Pair of Deaf Bonce Apocalypse 6.5 Inch Midrange Speakers, 520 Watts 4 Ohm AP-M61SE This listing includes: (2) Deaf Bonce 6.5 Inch AP Midrange Speakers -M61SE Speaker specifications: Nominal diameter: 6.5" Nominal impedance: 4 Ohm Maximum power handling: 260 watts RMS power handling: 130 watts Sensitivity (1w/1m): 101.5dB Frequency response: 100Hz ~ 15.5KHz MOTOR: Voice coil diameter: 1.25" Winding material: CCAW Cone Material: Pressed Paper Envelope Material: Cloth Basket Material: Stamped Steel Magnet Material: Ferrite Small Thiele Parameters: Equivalent Volume : Vas - 6.8L Free air resonance: Fs - 112Hz Total factor: Qts - 0.51 Force factor: BL - 6.15 Dimensions per speaker: Total diameter : 6.69" (170mm) Front Mount Deflector Cutout: 5.86" (149.5mm) Mounting Depth: 2.83" (72.5mm) Overall Depth: 3.07" (78.5mm)