Shortman Vivi B52 18" 1800w RMS 8Ω Driver


Shortman Vivi B52 18" 1800w RMS 8Ω Driver


General Characteristics

Nominal Overall Diameter: 460 mm

Nominal Voice Coil Diameter: 127 mm (5 Inches)

Flux Density: 1.18 T

Top plate thickness 12mm

Winding depth 28mm

Overall Diameter 487mm

Mounting Holes 8 -7mm/6-7mm

Bolt Circle Diameter 440mm/470mm

Baffle Cut Out Diameter 416mm

Overall Depth 192mm

Weight: 19.5 Kg

Thiele-Small Parameters

Resonance Frequency Fs 33 Hz

DC Resistance Re 5.2 Ω

Mechanical Q Factor Qms 7.47

Electrical Q Factor Qes 0.229

Total Q Factor Qts 0.222

Mechanical Moving Mass Mms 281 g

Mechanical Compliance Cms 0.78 mm/N

Force Factor BL 36.5 Tesla/m

Equivalent Acoustic Volume Vas 169.71 It.

Maximum Linear Displacement Xmax ±11 mm

Effective Piston Area Sd- 1.23m3

Half Space Efficiency Eff 2.77%

Electrical Characteristics

Nominal Impedance 8 Ω

Sensitivity@1W/1m 98 d B

Frequency response  30 – 2000 Hz

Constructive Characteristics

Magnet Ferrite

Voice Coil Winding Copper

Voice Coil Former Kapton

Cone Paper

Surround Treated Cloth

Dust Dome Paper

Basket Cast Aluminium

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