Kenwood KFC-W112S

SPEAKER FEATURES
Speaker Type: Subwoofer
Peak Input Power: 800W
Rated Input Power: 200W
Speaker Size: 300mm
Magnet Type: Ferrit
Terminals Silver Plated: Screw / slide type
Magnet Cover: No
Gasket Installation: one-way (Fixed)
Installation Capabillity: Sealed/ Ported

SPEAKER/WOOFER SPECIFICATIONS
Peak Input Power: 800W
Maximum Input Power: 400W
Rated Input Power: 200W
Woofer Cone material Injection: P.P. Cone
Speaker Basket: Steel
Speaker Surround: Urethane
Sensitivity: 90dB/W/m
Frequency Response: 28Hz ~ 800Hz
Subwoofer Impedance: 4Ω x 1
Dimensions (W x H x D): 328 x 328x 159.8mm
Mounting Depth: 138.6mm
Mouting Hole Diameter Ø: 274mm
Speaker Weight: 3270gr
Gross Weight: 4400gr
Weight of Magnet: 748gr

SUBWOOFER PARAMETERS
Nominal impedance (Z): 4Ω
DC resistance (Re): 3.7Ω
Resonant frequency (FSO): 28Hz
Mechanical Q factor (QMS): 9.49
Electrical Q factor (QES): 0.48
Total Q factor (QTS): 0.457
Voice coil inductance (LBM): 2mH
Voice coil diameter (d): 50mm
Force factor (BL): 12.8T/m
Peak excursion Xmax: 4mm
Moving mass (MMS): 109.9gr
Volume accoustic compliance (VAS): 95.4liter
Piston Area (SD): 0.0485m² 
Displacement: 3511cc
Sealed box volume: 35.4liter
Sealed Box Dimensions: 380 x 375 x 360mm ( 21mm thick MDF)(WxHxD)
Vented box volume: 42.5liter
Vented Box Dimensions: 380 x 440 x 360mm ( 21mm thick MDF)(WxHxD)
Vented box port diameter/length: Ø76mm / 178mm

ACCESSORIES
Screws (Parker-type) Ø 4 x 25mm, 8 pieces