Quick Overview The aluminum cone on this driver is extremely rigid yet well damped, making the bass and midbass region very clean and low in distortion. Product Highlights Great looking and sounding woofer Cosmetic stamped steel frame Flat frequency response in passband region Impressive output capabilities when used in MTM designs Very low distortion Product Manuals / Spec Sheets / Downloads Dayton Audio DA115-8 Specification Sheet Dayton Audio DA115-8 Data Files AddThis Sharing Buttons Share to FacebookFacebook Share to TwitterTwitter Share to MoreAddThis 1 Product Description The aluminum cone on this driver is extremely rigid yet well damped, making the bass and midbass region very clean and low in distortion. When used with a well-designed crossover, an extremely flat frequency response can be achieved that is clean well into the midrange region. OPTIMUM CABINET SIZE * Sealed Volume 0.04 ft.³ Sealed F3 125 Hz Vented Volume 0.13 ft.³ Vented F3 68 Hz * Enclosure volume/F3s based on BassBox "optimum" calculations Product Details Speaker Series Specialty Drivers Series Model Number DA115-8 List Price $20.99 Color Black Unit of Measure Each UPC 844632081675 Warranty - Parts 5 Years Warranty - Labor 5 Years Product Shipping Weight (lbs.) 2 Speaker Type Woofer Nominal Diameter 4" Power Handling (RMS) 20 watts Power Handling (max) 40 watts Continuous Program Power -- Impedance 8 ohms Sensitivity 84.9 dB @ 1W/1m Frequency Response 60 - 15 000 Hz Voice Coil Diameter 25 mm Magnet Weight -- DC Resistance (Re) 6.4 ohms Voice Coil Inductance (Le) 0.70 mH Resonant Frequency (Fs) 60 Hz Mechanical Q (Qms) 2.6 Electromagnetic Q (Qes) 0.49 Total Q (Qts) 0.41 Diaphragm Mass Inc. Airload (Mms) 6.6g Moving Mass Of Diaphragm (Mmd) -- Mechanical Compliance of Suspension (Cms) 1.1 mm/N Surface Area Of Cone (Sd) 53.1 cm² Volume of Displacement (Vd) 0.0133 cm³ BL Product (BL) 5.70 Tm Compliance Equivalent Volume (Vas) 4.4 liters Maximum Linear Excursion (Xmax) 2.5 mm Drivers Mechanical Losses (Rms) -- Cone / Diaphragm Material Aluminum Cone 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 115.6 mm Overall Depth 57.3 mm Baffle Cutout Diameter 93 mm # Mounting Holes 4 Mounting Hole Diameter -- Bolt Circle Diameter -- Product Weight --