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

Brand:|Model: UM15-22|Part # 295-514
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.
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Part # 295-514
  • 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 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 over $30 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
  • Impedance4 ohms
  • Frequency Response15 to 1,000 Hz
  • Sensitivity86.5 dB 2.83V/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)2.40
  • 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
  • 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
    (27 Reviews)
  • Weight35.3 lbs.
  • California Prop 65

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

View similar products to the Dayton Audio UM15-22 15" Ultimax DVC Subwoofer 2 ohms Per Coil
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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 27.
Rated 5 out of 5 by from UM15-22 Running "Free-Air" in a Infinity G35I installed a single UM15 in a free air application in a customer's Infinity G35 running off of an Alpine 1000 watt amp. The sub fires through the trunk access hole where the rear seat arm rest is. The Alpine is not stable at 1 ohm, so running at 4 ohm at 500-600ish watts. I was able to tie directly into the factory Bose sub for the signal line without using a signal converter which was nice. The sub is very clean, very smooth, and gets down and dirty on the low end. The customer is super happy and was able to keep almost their entire trunk space, which was a design requirement. He loves rap, hip hop, some techno and has told me that it plays it all effortlessly. Couldn't be happier and will definitely be using more of these great drivers.
Date published: 2016-02-08
Rated 5 out of 5 by from In a league all it's own.I purchased this sub with the idea of putting it in the box I made its about 5.0ft to go along with the Crown XLS 2002, what can I say this sub sounds fantastic, it gets low and really handles with detail.Watching "Pacific Rim" was awesome the giant Kaijus and Jaegers really come alive made me almost jump out of my seat,and watching the "Jurassic Park" movies when the T-REX started growling it sounded so real I am very happy with this sub.Thank you Dayton Audio.
Date published: 2015-12-28
Rated 5 out of 5 by from Loudest at the deepestI gave this sub everything it needed to succeed. 2100 watts from a crown xls 2000. Bass boost from a art 31 band eq. I used the 4 cubic foot blank baffle box sold here, a few pounds of poly fill, tight bond 2 glue... I feel I got amazing results. This sub can pulse, throb,thunder, and quake. I can't even run full tilt, I know some neighbor is gonna bang on the front door " turn that down! " this sub is ice cold 50 and below. It doesn't distort on any of the low notes. Kodoes for dayton for giving real world box recommend volumes. Other companies as a selling point say you can put their subs in tiny boxes, but for low frequencies it's just a waste of time. Any system can benefit from these.
Date published: 2015-11-14
Rated 5 out of 5 by from Well beyond expectation!"Car Application"I knew these had to be awesome subs but I had no idea they would surpass my expectations. I initially bought 2 JBL GTO1514D subs because of past experience and they sounded great in a ported box. Let me state that I'm an "ole skool" 80s bass head who's been converted to the deep, rich, digital bass that later became popular in the early 90s. I'm sure anyone who reads this is more than likely aware of and heard Basstronics' "Bass, I Love You" track. It sounded great on the JBLs, which were amp'd by an RF Prime R1200D. This amp made them come alive when playing that track and yielded some very deep, full bass that made me smile. I knew, however, my ultimate goal was to purchase 2 Dayton Audio UM15-22s and replace the JBLs in the same 7.2 cuft ported enclosure that housed the JBLs. I finally pulled the trigger and bought the first one. After 10 seconds of listening, I knew I was in trouble!First off, as robust as the R1200D was for the JBLs, it's severely under-powering just the one UM15. I already have an amp I plan to purchase based on reviews and some research because I'll need a ton more power for 2 UM15s! Even as under-powered as it is, it still sounds quite amazing, dare I say as good as but just a hair quieter than the 2 JBLs. I was only allowing it to, as I like to call it, "hum" because of the break-in period.Next, it's so rich, much like Swiss chocolate. I can not believe the potential of this sub where lows are concerned. I can already hear and feel its depth and I'm certain it will be even louder once more power is applied. I have been cautious about breaking it in properly so I can only imagine what it will sound like once it's completely functional. It's so crisp and clean and accurate for a 15" sub. I thought the JBLs got a little muddy and attributed that to "just being 15s". The UM15 has changed my perspective on that! I had a JL Audio 12W7 years ago and that was the best subwoofer I'd owned until now. It hit very, very hard, clean, loud, and very deep but it had more than enough power with the JL Audio 1000/1 pushing its limits. I believe this sub will surpass it once more quality power is applied.I will most definitely follow up with another review as things progress. Thanx Dayton for such a mind-blowing, ear numbing product! Purchase this power with no hesitation and please look back. It's a sexy looking sub!
Date published: 2015-10-27
Rated 5 out of 5 by from Insane!I am not normally a person to write reviews about products but this is definently one that needs the extra gratification. The look of the subwoofer alone was almost enough for me to give the beast a shot at my setup which is in my apartment in college (yes I have gotten 2 noise complaints already). I have done custom car and boat audio for over 6 years and have had my experience with many diverse speakers. This setup was something I put an extreme amount of time into and it turned out flawless. This subwoofer just absolutely SLAMS. I only have it ran off of a BEHRINGER NU1000 INUKE 1000 watt amp and you can tell that the subwoofer could EASILY take another 600 watts before it would even start to sweat. My buddy lives in the building next to mine and a floor up (approx. 30-40 yards) and we've tested the bass travel and when its running at full tilt the stuff on his walls would be shaking. Its very clean and is much more punchy then I expected it to be, which for me, is perfect because I listen to a lot of skrillex and dubstep (club music). As for the rest of the equipment the highs are crystal clear and practically make your ears bleed if you have it full tilt for more than 15 seconds. All in all the subwoofer is a beautiful piece of art and creates the deep bass atmosphere effortlessly.
Date published: 2015-06-05
Rated 5 out of 5 by from Great sub!Great sub for the $. I originally had this sub in a 2 cf. Sealed box. ( " small mistake") operating at 1 ohm at 2000 watts in my service van behind drivers seat. Two problems occurred, 1- box too small, & 2- dimming lights due to excessive current draw from amp. Before this sub was installed I had another 15" running at 2 ohms, & had no electrical issues. So , I called tech support, for a ported box design. I am not a fan of round ports, so I opted for a slot load port. After speaking with Herb in tech support, & working around the size of the enclosure, I ended up with a, 18.5"Wx1"Hx26"L port in a 3.2 This set up was more efficient than a sealed box, & I was able to wire the sub for a 4 ohm load, sacrificed power output from amp down to 700watts, reduced current draw on electrical system,& achieved good results. This sub is power hungry, so I plan on up grading amp for more power in the near future.Please keep in mind that this is in a work van, nothing fancy, just looking for added low frequencies. I would definitely buy another UM 15 if the need arises. My only complaint would be lack of voice coil impedance choices.
Date published: 2015-04-09
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Product Q&A

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

I originally decided on two ported UM12-22's for home theater use. I'm now considering using two UM15-22's or two UM18-22's in sealed enclosures instead. For home theater what would you recommend? Would a NU3000DSP be sufficient for the bigger speakers?

Asked by: AaronB
I personally prefer larger drivers when possible. The extra cone area really does make the lower bass more effortless. I think the i nuke 3000 would work well with either the 15 or 18. That has been a very popular setup.
Answered by: Chrisf
Date published: 2016-02-09

Why are there two different volume sizes gives in the description (3.1) and specs (3.98) cubic feet for a sealed system? thanks

Asked by: bob_m
I think the smaller of the two takes the driver and fill into account and the 3.98 is gross box volume without anything in it.
Answered by: BW28
Date published: 2016-01-31

I'm looking for 2) 15" drivers for a face to face isobaric of 3.22cuft internal. Box is sealed with 1.5" thickness walls. Drivers separated by 1.5" baffle. 

Asked by: Unit74
I'm not sure what your question is.
Answered by: BW28
Date published: 2016-02-04

I'm going with the 16 cubic ft box with 6" diameter by 18" long port.  What would be the displacement needed for port and driver?

Asked by: Brjmn
The woofer and port will displace roughly 0.5 cubic feet.
Answered by: MattP
Date published: 2016-01-25

Hi, I'd like to build a very small 3 ft^3 sub with this woofer, and thought about using passive radiators to extend the low end with minimal EQ. Would it work well with 2x 12" Scan Speak 30 W 00 (Xmax of 28mm)? I live in Germany, so limited options.

Asked by: one51
Unfortunately this will not work well in that volume with passives, and those would be too small. You would need a pair of high excursion 15's to work properly, but it would still not perform very well. In that volume you are better off sticking with a sealed design it will not require much EQ to reach below 20 Hz.
Answered by: MattP
Date published: 2016-01-11

How does this compare to a Titanic MKIII when used in your 3 cubic foot box? Currently have 2 MKIII's. Also, what power and EQ are recommended

Asked by: John1954
These will work very well in the same enclosures and will have a marginally lower F3 than the Titanics. Output will be similar overall, maybe a slight edge to the Titanic with a higher sensitivity. Power and EQ would be the same, our Dayton SPA1000 amps would be recommended.
Answered by: MattP
Date published: 2016-01-05
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