Quick Overview The Dayton Audio DC130B-4 5-1/4" woofer is a 4 ohm, round frame version of the popular Classic Series DC130 drivers. Product Highlights Sturdy, easy-to-countersink round steel frame 4 ohm impedance offers alternative load possibilities Coated paper cone provides smooth response and reduced cone breakup Suitable for sealed or vented enclosures Large diameter flat spider and good Xmax for clean bass Aluminum VC former and vented pole piece for high power handling Product Manuals / Spec Sheets / Downloads Dayton Audio DC130B-4 Specification Sheet Dayton Audio DC130B-4 Data Files AddThis Sharing Buttons Share to FacebookFacebook Share to TwitterTwitter Share to MoreAddThis Product Description One of the main design goals at Dayton Audio is to create loudspeakers that can achieve high levels of performance at reasonable prices. The Dayton Audio DC130B-4 5-1/4" woofer is a great example of this approach. It features a non-pressed treated paper cone, rubber half-roll surround, ASV voice coil, coated cloth dust cap, and excellent low frequency response. OPTIMUM CABINET SIZE * Sealed Volume 0.1 ft.³ Sealed F3 120 Hz Vented Volume 0.22 ft.³ Vented F3 72 Hz * Enclosure volume/F3s based on BassBox "optimum" calculations Product Details Speaker Series Classic Series Model Number DC130B-4 List Price $25.99 Color Black Unit of Measure Each UPC 844632093982 Warranty - Parts 5 Years Warranty - Labor 5 Years Product Shipping Weight (lbs.) 2.05 Speaker Type Woofer Nominal Diameter 5.25" Power Handling (RMS) 40 watts Power Handling (max) 80 watts Continuous Program Power -- Impedance 4 ohms Sensitivity 92.1 dB @ 2.83V/1m Frequency Response 50 - 5 000 Hz Voice Coil Diameter 25.4 mm Magnet Weight 11 oz. DC Resistance (Re) 3.2 ohms Voice Coil Inductance (Le) 0.5 mH @ 1 kHz Resonant Frequency (Fs) 51.8 Hz Mechanical Q (Qms) 2.52 Electromagnetic Q (Qes) 0.41 Total Q (Qts) 0.35 Diaphragm Mass Inc. Airload (Mms) 9.4g Moving Mass Of Diaphragm (Mmd) -- Mechanical Compliance of Suspension (Cms) 1 mm/N Surface Area Of Cone (Sd) 91.6 cm² Volume of Displacement (Vd) 22.9 cm³ BL Product (BL) 4.89 Tm Compliance Equivalent Volume (Vas) 12.3 liters Maximum Linear Excursion (Xmax) 2.5 mm Drivers Mechanical Losses (Rms) -- Cone / Diaphragm Material Coated Paper Entry / Exit Diameter -- Surround Material Rubber Voice Coil Wire Material Copper Voice Coil Former Aluminum Basket/Frame Material Steel Magnet Material Ferrite Overall Outside Diameter 145 mm Overall Depth 67.8 mm Baffle Cutout Diameter 120 mm # Mounting Holes 4 Mounting Hole Diameter -- Bolt Circle Diameter -- Product Weight --