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Dayton Audio UM15-22 15" Ultimax DVC Subwoofer 2 ohms Per Coil
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About Dayton Audio UM15-22 15" Ultimax DVC Subwoofer 2
Quick Overview Dayton Audios Ultimax Series DVC subwoofers are purpose-built to move air and create clean, articulate, fast bass. Experience the apex of subwoofer design. Product Highlights Sweeps massive amounts of air! Over 1-1/2" of total cone travel 800 watts RMS power handling The latest in subwoofer technology Dual linear stiffness spiders limit distortion and rocking modes Dual 2 ohm, 2-layer copper voice coils Large vented pole piece and under-spider venting Product Manuals / Spec Sheets / Downloads Dayton Audio UM15-22 Specificiation Sheet Dayton Audio UM15-22 Data Files AddThis Sharing Buttons Share to FacebookFacebook Share to TwitterTwitter Share to MoreAddThis 2 Product Description The Ultimax Series of dual voice coil subwoofers, from Dayton Audio, are not for the faint of heart. Built using the latest in subwoofer technology, Ultimax subwoofers are the pinnacle of low frequency driver design. An Ultimax subwoofer tests the strength of your foundation with fast, articulate, gut-wrenching bass. Dual 2 ohm voice coils allow for stereo 2 ohm and mono 1 ohm wiring configurations when connecting to high current car audio and professional audio amplifiers to extract maximum power. For home audio applications, simply wire the voice coils in series for a benign 4 ohm load for greater amplifier compatibility. To improve power handling, increase thermal management, and reduce power compression, Dayton Audio designed the Ultimax Series with large black anodized formers and vented pole pieces, under-spider ventilation, and two-layer copper voice coils. Over 1-1/2" of travel (3/4" Xmax) is kept completely linear through the use of dual spiders that also limit distortion and rocking modes. "Tall-boy" rubber surrounds with integrated gaskets maintain driver surface area during extreme excursion moments. Thick, one-piece Nomex honeycomb covered cones are covered with woven, heavy-duty glass fibers creating ultra-still cones that resist deformation. A large copper sleeve and copper pole cap in the motor reduce energy storage from inductance, with the side benefit of lowering distortion for "faster" response. Large dual-stacked, high-energy magnets handle the heavy lifting and bring Qts down to a level where Ultimax subwoofers can be used in vented or sealed cabinets and enclosures. Cabinet recommendations: • Sealed 3.1 cubic ft. (net internal) with 3 lbs. of Acousta-Stuf polyfill, f3 of 35 Hz with a 0.707 Qtc alignment • Vented 6.0 cubic ft. (net internal, not including driver or port volume) with 6 lbs. of Acousta-Stuf tuned to 18 Hz with two 4" diameter by 26" long flared ports for an f3 of 22 Hz. Larger cabinets and lower tuning frequencies are possible. Note: All parameters derived with voice coils wired in series. Product Details Speaker Series Ultimax Series Model Number UM15-22 List Price $259.99 Color Black Unit of Measure Each UPC 844632099267 Warranty - Parts 5 Years Warranty - Labor 5 Years Product Shipping Weight (lbs.) 28 Speaker Type Subwoofer Power Handling (RMS) 800 watts Power Handling (max) 1 600 watts Continuous Program Power -- Impedance 4 ohms Sensitivity 86.5 dB @ 2.83V/1m Frequency Response 15 - 1 000 Hz Voice Coil Diameter 63.5 mm Magnet Weight -- DC Resistance (Re) 3.4 ohms Voice Coil Inductance (Le) 1.31 mH Resonant Frequency (Fs) 19.5 Hz Mechanical Q (Qms) 2.4 Electromagnetic Q (Qes) 0.59 Total Q (Qts) 0.47 Diaphragm Mass Inc. Airload (Mms) 279.4 g Moving Mass Of Diaphragm (Mmd) -- Mechanical Compliance of Suspension (Cms) 0.24 mm/N Surface Area Of Cone (Sd) 814.6 cm² Volume of Displacement (Vd) 1 548 cm³ BL Product (BL) 15.4 Tm Compliance Equivalent Volume (Vas) 224.3 liters Maximum Linear Excursion (Xmax) 19 mm Drivers Mechanical Losses (Rms) -- Cone / Diaphragm Material Nomex Cone Entry / Exit Diameter -- Surround Material Rubber Voice Coil Wire Material Copper Voice Coil Former Aluminum Basket/Frame Material Cast Aluminum Magnet Material Ferrite Overall Outside Diameter 388 mm Overall Depth 226 mm B
