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C18-elf
General Specifications
Nominal Impedance 8 Ω
Power 800 Watt (rms)
SPL 1W@1M average sensitivity 96 dB
Frequency Response 30Hz - 100Hz
Dimension Ø x H (cm) 47.6 x 22.3
Net Weight 12.8 kg (28.2 lbs)
Shipping Weight 14.8 kg (32.6 lbs)
Packing Dimension H x W x D (cm) 49.5 x 49.5 x 27.5, (2.4cu.ft), 19.5" x 19.5" x 10.8"
Physical Specifications
Magnet type Ferrite
Voice Coil Diameter 101.6 mm (4 inch)
Thiele/Small Parameters
Resonance Frequency Fs 41 Hz
DC. Resistance Re 6.1 Ω
Coil Inductance Le 0.81 mH
Mechanical Q Factor Qms 6.76
Electrical Q Factor Qes 0.52
Total Q Factor Qts 0.48
BL Product BL 24.76 Tm
Effective Moving Mass Mms 198.64 g
Equivalent Cas Air-Load Vas 148.56 Liters
Effective Piston Area Sd 0.12 Sqm
Half-Space Efficiency Eff 2.01 %
Airgap Height Hag 10.0 mm
Voice Coil Height Hvc 26.0 mm
Voice Coil Overhang Xmax 8.0 mm