OEM JBL Selenium 6W4P 6" Woofer Selenium Part # 264-422 Model: 6W4P JBL Selenium 6W4P 6" Woofer This woofer offers excellent performance in the mid frequency range and is great for sound reinforcement in nightclubs, dancing halls, auditoriums, bands, or for use in studio monitors. Features epoxy painted reinforced steel frame, impregnated foam surround, and impregnated long fiber paper cone. Product Details Brand Selenium Model 6W4P Part Number 264-422 Unit of Measure Each Weight 3.96 Product Specifications Nominal Diameter 6" Power Handling (RMS) 100 Watts Power Handling (MAX) 200 Watts Impedance 8? Frequency Response 80 to 9,000Hz Sensitivity 91dB 2.83V/1m Voice Coil Diameter 1.25" Thiele-Small Parameters Resonant Frequency (Fs) 76Hz DC Resistance (Re) 5.9? Voice Coil Inductance (Le) 0.57mH Mechanical Q (Qms) 6.7 Electromagnetic Q (Qes) 0.95 Total Q (Qts) 0.83 Compliance Equivalent Volume (Vas) 0.28ft Mechanical Compliance of Suspension (Cms) 0.32mm/N BL Product (BL) 6.34T·m Diaphragm Mass Inc. Airload (Mms) 16.9g Maximum Linear Excursion (Xmax) 2.3mm Surface Area of Cone (Sd) 238cm Materials of Construction Cone Material Paper Voice Coil Wire Material Copper Voice Coil Former Kapton / Polyimide Basket / Frame Material Steel Magnet Material Ferrite Mounting Information Overall Outside Diameter 6.54" Baffle Cutout Diameter 5.63" Depth 2.9" # Mounting Holes 4 Parts Express Staff Recommended Enclosure Volume Sealed Volume 0.4ft Sealed F3 80.8Hz Vented Volume 0.6ft Vented F3 57.1Hz