UM10-22 10" Ultimax DVC Subwoofer 2 ohm Per Coil
Dual 2 ohm, 2-layer copper voice coils
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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.
Nearly 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.
• Sealed 0.63 cubic ft. (net internal), f3 of 45 Hz with a 0.707 Qtc alignment
• Vented 1.75 cubic ft. (net internal, not including driver or port volume) tuned to 25 Hz with a 10" wide by 1" high slot port that is 24" long, which yields an f3 of 23 Hz
Note: All parameters derived with voice coils wired in series.
• Large vented pole piece and under-spider venting
• 500 watts RMS power handling
• Black anodized aluminum former and black pole improves heat dissipation
• Thick, one-piece Nomex honeycomb covered cone with woven heavy-duty glass-fiber
• Tall-boy rubber surround for extra-long linear excursion without reducing cone surface area
• Dual linear stiffness spiders limit distortion and rocking modes
|Speaker Series||Ultimax Series|
|Unit of Measure||Each|
|Warranty - Parts||5 Years|
|Warranty - Labor||5 Years|
|Product Shipping Weight (lbs.)||22.0000|
|Power Handling (RMS)||500 watts|
|Power Handling (max)||1,000 watts|
|Continuous Program Power||--|
|Sensitivity||84.8 dB @ 2.83V/1m|
|Frequency Response||25 - 1,500 Hz|
|Voice Coil Diameter||63.5 mm|
|DC Resistance (Re)||3.2 ohms|
|Voice Coil Inductance (Le)||1.28 mH @ 1 kHz|
|Resonant Frequency (Fs)||26.9 Hz|
|Mechanical Q (Qms)||3.08|
|Electromagnetic Q (Qes)||0.59|
|Total Q (Qts)||0.49|
|Diaphragm Mass Inc. Airload (Mms)||227g|
|Moving Mass Of Diaphragm (Mmd)||--|
|Mechanical Compliance of Suspension (Cms)||0.15 mm/N|
|Surface Area Of Cone (Sd)||327.8 cm²|
|Volume of Displacement (Vd)||622.8 cm³|
|BL Product (BL)||14.5 Tm|
|Compliance Equivalent Volume (Vas)||23.5 liters|
|Maximum Linear Excursion (Xmax)||19 mm|
|Driver's Mechanical Losses (Rms)||--|
|Cone / Diaphragm Material||Nomex Cone|
|Entry / Exit Diameter||--|
|Voice Coil Wire Material||Copper|
|Voice Coil Former||Aluminum|
|Dual Voice Coil||Yes|
|Basket/Frame Material||Cast Aluminum|
|Overall Outside Diameter||273.5 mm|
|Overall Depth||178 mm|
|Baffle Cutout Diameter||236.7 mm|
|Mounting Hole Diameter||--|
|Bolt Circle Diameter||--|
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