Markaudio PLUVIA-7HD Gold Full-range Woofer

Woofer Type : Full-Range Woofer
Nominal Diameter : 4''
Power Handling (RMS) : 20 Watts
Impedance (Z) : 8 Ohms
Sensitivity : 85.7419 dB 1W/m
Frequency Response : 20 - 40,000 Hz
DC Resistance (Re) : 5.4000 Ohms
Voice Coil Inductance (Le) : 0.1652 mH
Resonant Frequency (Fs) : 72.5494 Hz
Mechanical Q (Qms) : 3.1446
Electromagnetic Q (Qes) : 0.7173
Total Q (Qts) : 0.584
Diaphragm Mass Inc. Airload (Mms) : 3.8390 g
Moving Mass Of Diaphragm (Mmd) : 3.6373 g
Mechanical Compliance of Suspension (Cms) : 1.2536 mm/N
Surface Area of Cone (Sd) : 0.0050 m2
BL Product (BL) : 3.6297
Compliance Equivalent Volume (Vas) : 4.4227 L
Maximum Linear Excursion (Xmax) : +/- 4 mm
Cone / Diaphragm Material : Magnesium alloy
Surround Material : Rubber
Basket / Frame Material : Polymer
Magnet Material : Ferrite
Overall Outside Diameter : 122.3 mm
Overall Depth : 71.5 mm
Baffle Cutout Diameter : 100 mm
Bolt Circle Diameter : 112 mm
# Mounting Holes : 5
Mounting Hole Diameter : 5 - 3.1 mm