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Dayton Audio UM15-22 15" Ultimax DVC Subwoofer 2 ohms Per Coil

Brand:| Model: UM15-22
Product Video
Overview
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.
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
Part # 
295-514
Weight: 35.3 lbs.  
IN STOCK
List Price$259.99
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$199.80
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Part # 295-514
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Product Details

Dayton Audio UM15-22 15" Ultimax DVC Subwoofer 2 ohms Per Coil

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.

A knock-down 3.0 cubic foot subwoofer cabinet built specifically for the Dayton Audio Ultimax 15" subwoofer is available here. Save 50% off the price of the cabinet when you buy the cabinet and UM15-22 subwoofer (at regular price) together in this package only.

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 Specifications
  • Nominal Diameter15"
  • Power Handling (RMS)800 Watts
  • Power Handling (max)1600 Watts
  • Impedance2+2 ohms
  • Frequency Response15 to 1,000 Hz
  • Sensitivity86.5 dB 1W/1m
  • Voice Coil Diameter2.5"
Thiele-Small Parameters
  • Resonant Frequency (Fs)19.5 Hz
  • DC Resistance (Re)3.4 ohms
  • Voice Coil Inductance (Le)1.31 mH
  • Mechanical Q (Qms)2.4
  • Electromagnetic Q (Qes)0.59
  • Total Q (Qts)0.47
  • Compliance Equivalent Volume (Vas)7.92 ft.³
  • Mechanical Compliance of Suspension (Cms)0.24 mm/N
  • BL Product (BL)14.1 Tm
  • Diaphragm Mass Inc. Airload (Mms)279.4g
  • Maximum Linear Excursion (Xmax)19 mm
  • Surface Area of Cone (Sd)814.6 cm²
Materials of Construction
  • Cone MaterialNomex / Glass Fiber
  • Surround MaterialRubber
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerAluminum
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter15.28"
  • Baffle Cutout Diameter13.78"
  • Depth7.55"
  • Bolt Circle Diameter14.65"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume3.98 ft.³
  • Sealed F333 Hz
  • Vented Volume11.1 ft.³
  • Vented F317 Hz
Dayton Audio UM15-22 15" Ultimax DVC Subwoofer 2 ohms Per Coil
  • BrandDayton Audio
  • ModelUM15-22
  • Part Number295-514
  • UPC844632099267
  • Product CategorySubwoofer Drivers
  • Unit of MeasureEA
  • Product Rating
    (16 Reviews)
  • Weight35.3 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

Dayton Audio UM15-22 15" Ultimax DVC Subwoofer 2 ohms Per Coil
Dayton Audio UM15-22 15" Ultimax DVC Subwoofer 2 ohms Per Coil is rated 5.0 out of 5 by 17.
Rated 5 out of 5 by from The AbyssI am using two of these subwoofers in an 8 cu.ft. internal enclosure, powered by a crown xls2500 amplifier. All I can say is HOLY GOD! My subwoofer was built and tested at Meniscus Audio in Grand Rapids. This subwoofer feels my entire house with deep, rich and powerful bass well below 20 hz.
Date published: 2014-07-19
Rated 5 out of 5 by from Exceeds expectationsI had high expectations going into this. I thought if it is nearly as good as I expect I would be very happy. So I built a roughly 3 cft sealed box for it, stuffed it as recommended and bridged an inuke1000 into 4 ohms on this (VCs wired in series) and it blew me away. I have it coupled with an Epik Empire and a 10" sealed B&W in an 1800cft room, and this sub literally wipes the floor with both of those, put together.It is very musical, it sounds great and unobtrusive, but plays with authority when it is called for. It plays every genre with ease and hardly breaks a sweat. That is what surprised me the most. I thought I would be using the empire and the B&W for music, and just turning this on for movies, but it is on all the time.For movies, it digs deep and provides a scary amount of tight, punchy bass. I like it so much, I just ordered a second one, and am going to sell the 10" sub and run two of these with the epik empire. It is a good match for that sub if anyone is looking for multiples who owns one.I cannot imagine wanting more from a subwoofer. Here is the link to my build with pics and graphs.http://www.avsforum.com/t/1529850/mcstyvies-15-sealed-sub-build
Date published: 2014-05-14
Rated 5 out of 5 by from Far more than I expectedI put this in my eclipse gts in its recommended 3cuft box stuffed., firing up off the rear glass, and man, this thing. Produces krazy lows. And its like the lower note it plays, the louder it becones. The accuracy of this sub is great. Too. Ive owned stereo integrity, fi car audio, pioneer champion pro and this is the best bang. For the buck, esp any lower than 40hz.
Date published: 2014-04-21
Rated 5 out of 5 by from ULTIMAX is the ultimateJEEP! Car audio application: 2 ultimax 15s, box is 8.8 ft3 after sub, port, and bracing, tuned @ 32.5 hertz, wired in series / parallel for a 2 ohm load, way underpowered as my amp is running 1100 - 1300 watts / rms @ 2 ohms. This is REAL bass pullin off hair tricks with only 2 subs and 1200 watts rms... 20 - 45 hertz these subs are blowin the competition away, and with the only COMPARABLE subs being triple the money+++ and those needing 5000 watts rms +++ and that many watts needs H/O alternator wich is also big $$$$$. pound for pound and dollar for dollar there is not a better sub on the market. If you want STRONG , CLEAN , LOW , CLEAN , DEEP , CLEAN , SUPER LOUD and CRYSTAL CLEAN SUBS GET ULTIMAX and DONT waste your time or money on disappointing subs that dont have ultimate bass that plays to the max. I will never buy any other sub ever. in the near future i will get 2 more for my girls jeep, and even 2 more for my home theater... Ultimax # 1 sub for LOW LOUD and CLEAN.... The most bang for your $$$$$$$$$$$$$$$$$$$
Date published: 2014-04-16
Rated 5 out of 5 by from Good LordI have the 15 inch model in a sealed box in my trunk powered by a 1200 watt amp at 1 ohm. This thing slams. The bass hits low tight and clean. Absolutely would recommend this sub to anyone bass enthusiast or otherwise.
Date published: 2014-04-15
Rated 5 out of 5 by from Yes!Yes! That's all I can say about this thing. I just received this behemoth a few weeks ago, and other than weighing 30,000 pounds, it is an amazing sub. Simple to hook up. I have (2) of the Ultimax 15" subs and 3cu/ft box combo's, and I currently only have one hooked up. I could not imaging having both of them hooked up in the same room. I have this powered with the Dayton 1000w Rack mountable amplifier, and one of them in a 3cu/ft box has no problem putting out 20hz with authority and shaking pictures off the walls!
Date published: 2014-03-06

Product Q&A

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who own this product or have experience with it.
If your question requires design or troubleshooting information,
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Dayton Audio UM15-22 15" Ultimax DVC Subwoofer 2 ohms Per Coil

How do I wire this driver for a two ohm load?

Asked by: Jimbo85281
Unfortunately you can't. You can wire this three different ways, in parallel for a 1 ohm load, in series for a 4 ohm load or use a different amplifier/amp channel on each coil at 2 ohms.
Answered by: MattP
Date published: 2014-07-09

How would this work in a 3 cubic foot seal box on a pontoon boat? We listen to a lot of country and old Rock an Roll.

Asked by: Coony
This will work very well in that volume. The only issue you may have is overall output since a pontoon boat wont have much loading from walls to reinforce the output and low frequencies.
Answered by: MattP
Date published: 2014-06-20

Would one 1000w plate amp be sufficient to power two of these in an M&K style push pull configuration?

Asked by: Dave406
With one plate amp you would have to wire the woofers to 8 ohms and only get about 250 watts to each. You would be better off using either one 500 watt, or one 1000 watt amp per sub. The 1000 watt model is recommended.
Answered by: MattP
Date published: 2014-06-16

What is the f3-f10 of this driver in a 4 cubic foot sealed box?

Asked by: Jake37
The F3/F10 in that volume is 33/19 Hz respectively.
Answered by: MattP
Date published: 2014-05-05

Looking for a replacement - and hopefully an upgrade - to the stock driver in my AV123 MFW-15 subwoofer. Will this be effective as a drop-in replacement powered by a Crown XLS-1500? It will primarily be used for home theater. Thanks.

Asked by: red_5ive
Unfortunately I would not recommend this woofer in that enclosure. If you are looking for a replacement, the Dayton DVC385-88 would be the best option. If you are looking for an upgrade, about the only option that will still work in that enclosure would be the Dayton RSS390HO-4 although I cannot guarantee it will be a noticeable improvement.
Answered by: MattP
Date published: 2014-04-21

A pair of these speakers wired in series (8 ohms) or in parallel (2 ohms) would require an amplifier with how much power to do well in a home theater/music environment.  Would a Crown XLS 2500 amplifier's single channel be adequate?

Asked by: kishore
You would be much better off bridging the amplifier and running them at 8 ohms, which will provide the same amount of power as two ohms in stereo mode.
Answered by: MattP
Date published: 2014-04-07

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