Eighteen Sound 12W700

8Ω

Subwoofer

Nominal diameter	12″ / 300 mm
Resonance	58 Hz
Q factor	0.36
Sensitivity	96.2 dB
Linear excursion	± 6.5 mm
Program Power	700 W

Eighteen Sound 12W700 Subwoofer

Specifications

Sensitivity (1W, 1m, infinite baffle) SPL1W 96.2dB
Frequency response 55 - 4200Hz

Thiele & Small parameters

Resonance frequency (free air) fS 58Hz
Mechanical quality factor QMS 3.93
Electrical quality factor QES 0.37
Total quality factor QTS 0.36

Large signal parameters

Maximum linear excursion xmax 6.5mm
Air volume displaced at xmax VD 345cm³
Power handling P 450W
Program power Pmax 700W

Voice Coil

Nominal impedance Z 8Ω
DC resistance RE 5.7Ω
Inductance (1kHz) LE 1.48mH
VC Diameter 75mm
Winding material Aluminum

Magnet

Force factor Bl 17.7N/A
Motor constant Bl/√RE 7.41N/√W
Material Ferrite

Diaphragm

Effective diameter 260mm
Effective area SD 531cm²
Moving mass MMS 51g
Moving mass (without air load) MMD 42.2g
Material Weather protected

Suspensions

Stiffness KMS 6.76N/mm
Compliance CMS 148µm/N
Equivalent volume to the compliance VAS 55L
Mechanical resistance RMS 4.73N·s/m

Dimensions

Nominal diameter 12″
300mm
Overall diameter 315mm
Baffle cutout diameter 282mm
Overall depth 147mm
Flange thickness 16mm
Mounting depth 131mm
Volume occupied by the driver (estimated) 3.3L
Net weight 8.2kg

Eighteen Sound 12W700 SPL

Eighteen Sound 12W700 Dimensions

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Closed Box Simulator·

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