SEAS SW 250/1 L0019-04S

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.6dB
• Frequency response 30 - 500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 31Hz
• Mechanical quality factor QMS 6.42
• Electrical quality factor QES 0.46
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 11mm
• Maximum excursion before damage xlim 17.5mm
• Air volume displaced at xmax VD 381cm³
• Power handling P 150W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.2Ω
• Inductance (1kHz) LE 6.39mH
• VC Diameter 52mm
• Winding height HVC 32mm

Magnet

• Flux density B 0.66T
• Force factor Bl 14N/A
• Motor constant Bl/√RE 7.83N/√W
• Air gap height HAG 10mm
• Weight 5.8kg

Diaphragm

• Effective diameter 210mm
• Effective area SD 346cm²
• Moving mass MMS 139g
• Moving mass (without air load) MMD 135g

Suspensions

• Stiffness KMS 5N/mm
• Compliance CMS 200µm/N
• Equivalent volume to the compliance VAS 31L
• Mechanical resistance RMS 4.81N·s/m

Dimensions

• Nominal diameter 10″
• 250mm
• Volume occupied by the driver (estimated) 3L
• Net weight 6.7kg