Free Air Resonance: 87.73 Hz
Nominal Impedance: 4 Ohms
Sensitivity 2.83 v @ 1 meter: 87.3
Outside Diameter: 129 mm basket + 149.2 mm ears
Mounting Hole Diameter: 120 mm
Mount Depth: 62.4 mm
Point Source Tweeter
Bi Amp 12 dB crossover
Maximum Linear Excursion: ± 5.5 mm