Technical specifications

Nominal diameter 165 mm. 6.5 in.

Rated impedance 8 ohms.

Minimum impedance 7.1 ohms.

Power capacity* 125 w AES

Program power 250 w

Sensitivity 98 dB 2.83v 1m 2¹

Frequency range 150 - 8000 Hz

Voice coil diameter 38.5 mm. 1.5 in.

Magnetic assembly weight 2 kg. 4.4 lb.

BL factor 9.6 N / A

Moving mass 0.009 kg.

Voice coil length 7 mm.

Air gap height 6 mm.

Thiele-Small parameters**

Resonant frequency, fs 120 Hz

D.C. Voice coil resistance, Re 6 ohms.

Mechanical Quality Factor, Qms 6.8

Electrical Quality Factor, Qes 0.47

Total Quality Factor, Qts 0.44

Equivalent Air Volume to Cms, Vas 7 l

Mechanical Compliance, Cms 195 ìm / N

Mechanical Resistance, Rms 1 kg / s

Efficiency, ho (%) 1.7

Effective Surface Area, Sd 0.0140 m2

Maximum Displacement, Xmax 1 mm.

Displacement Volume, Vd 14 cm3

Voice Coil Inductance, Le 1 kHz 0.5 mH