Nominal Diameter: 547mm/ 21 inch
Frame: Aluminium
Magnet: Ferrite Ring
Magnet Diameter: 280mm
Nominal Impedance: 8 Ohm
Magnetic Gap Depth: 15mm
AES Power Handling: 1400W
Continuous Program Power: 2800W
Sensitivity 1W/1M: 96.1dB
Frequency Range: 31-1.8kHz
Voice Coil Diameter: 125mm/ 4.9 inch
Winding Material: CCAW
Former Material: GBF
Winding Depth: 27mm
Surround (Damper): NC
Cone and Dust Cap: Paper
Surround Material: Polycotton
Surround Design: Triple-roll
Rosonanco Frequency: Fs, 31Hz
DC Resistance: Re, 6 Ohms
Mechanical Factor: Qms, 8.701
Electrical Factor: Qes, 0.441
Total Factor: Qts, 0.419
BL Factor: BL, 26.773T.m
Effective Moving Mass: Mms, 264.903gr
Compliance: Cms, 95.553 µ M/N
Equivalent Cas Air Load: Vas 374.749L
Effective Piston Area: Sd, 1.66m²
? (Eta Zero): ?0, 2.60%
Overall Diameter: 549mm
Bolt Circle Diameter: 519mm
Baffle Cutout Diameter: 495mm
Depth: 240mm
Neight Weight: 21.2kg
Shipping Weight: 24.2kg