UM15-22 15" Ultimax DVC Subwoofer 2 ohm Per Coil

Sweeps massive amounts of air!

RRP $641.34
SAVE $2.34 (0%)
In Stock

Calculate Shipping

Dayton Audio's Ultimax Series DVC subwoofers are purpose-built to move air and create clean, articulate, fast bass. Experience the apex of subwoofer design.



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.








• 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


Speaker Series Ultimax Series
Model Number UM15-22
Color Black
Unit of Measure Each
UPC 844632099267
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight (lbs.) 28.0000
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) 2.40
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
Driver's Mechanical Losses (Rms) --
Cone / Diaphragm Material Nomex Cone
Entry / Exit Diameter --
Surround Material Rubber
Voice Coil Wire Material Copper
Voice Coil Former Aluminum
Dual Voice Coil Yes
Basket/Frame Material Cast Aluminum
Magnet Material Ferrite
Overall Outside Diameter 388 mm
Overall Depth 226 mm
Baffle Cutout Diameter 350 mm
# Mounting Holes 8
Mounting Hole Diameter --
Bolt Circle Diameter --
Product Weight --


SKU 844632099267
Model # UM15-22
Barcode # 844632099267
Brand Dayton Audio
Shipping Weight 20.5550kg
Shipping Width 0.514m
Shipping Height 0.305m
Shipping Length 0.514m
Shipping Cubic 0.080637000m3
Assembled Length 0.514m
Assembled Height 0.305m
Assembled Width 0.514m

Be The First To Review This Product!

Help other The Loudspeaker Kit users shop smarter by writing reviews for products you have purchased.

Write a product review

comments powered by Disqus

Others Also Bought

More From This Category