Power RMS, W: 60
Impedance, Ohm: 4
Sensitivity (1 W / 1 m), dB: 88
Frequency range, Hz: 50 - 10000
Diffuser Material: Fiberglass
Qes: 0.54
Qms: 2.9
Qts: 0.52
Mounting Diameter mm: 144.6
Mounting Depth, mm: 64

Power RMS, W: 30
Impedance, Ohm: 4
Sensitivity (1 W / 1 m), dB: 88
Diffuser Material: Cloth
Mounting Diameter mm: 69
Mounting Depth mm: 39.5

Maximum power, W: 70
Impedance, Ohm: 6
Sensitivity (1 W / 1 m), dB: 92
Frequency range, Hz: 1100 - 20,000
Diffuser Material: Silk
Mounting Diameter mm: 51.7
Mounting Depth, mm: 20