Eighteen Sound 12W750 8Ω

8Ω

Subwoofer

Nominal diameter	12″ / 300 mm
Resonance	49 Hz
Q factor	0.28
Sensitivity	96 dB
Linear excursion	± 8 mm
Program Power	1200 W

Eighteen Sound 12W750 8Ω Subwoofer

Specifications

Sensitivity (1W, 1m, infinite baffle) SPL1W 96dB
Frequency response 50 - 4600Hz

Thiele & Small parameters

Resonance frequency (free air) fS 49Hz
Mechanical quality factor QMS 7.00
Electrical quality factor QES 0.30
Total quality factor QTS 0.28

Large signal parameters

Maximum linear excursion xmax 8mm
Air volume displaced at xmax VD 425cm³
Power handling P 600W
Program power Pmax 1200W

Voice Coil

Nominal impedance Z 8Ω
DC resistance RE 5.2Ω
Inductance (1kHz) LE 0.95mH
VC Diameter 75mm
Winding material Aluminum

Magnet

Force factor Bl 18N/A
Motor constant Bl/√RE 7.89N/√W
Material Ferrite

Diaphragm

Effective diameter 260mm
Effective area SD 531cm²
Moving mass MMS 57g
Moving mass (without air load) MMD 48.4g
Material Weather protected

Suspensions

Stiffness KMS 5.41N/mm
Compliance CMS 185µm/N
Equivalent volume to the compliance VAS 73L
Mechanical resistance RMS 2.51N·s/m

Dimensions

Nominal diameter 12″
300mm
Overall diameter 310mm
Baffle cutout diameter 280mm
Overall depth 148mm
Flange thickness 11mm
Mounting depth 137mm
Volume occupied by the driver (estimated) 3.1L
Net weight 7.5kg

Eighteen Sound 12W750 8Ω SPL

Eighteen Sound 12W750 8Ω Dimensions

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