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🎵 Feel the bass, own the room — Ultimax II redefines power and precision.
The Dayton Audio UMII12-22 Ultimax II 12" DVC Subwoofer features a robust 800W RMS power capacity, a precision-engineered ±22 mm xmax excursion for deep bass, and a lightweight woven carbon fiber cone for fast, accurate sound. Its advanced thermal management and dual spider design ensure durability and peak performance, making it ideal for both sealed and vented enclosures in home theater, car audio, and music production setups.







| ASIN | B0DBRMN5PF |
| Antenna Location | For Home Theaters, For Car Audio, For Music Production |
| Audio Driver Size | 12 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo, Surround Sound |
| Best Sellers Rank | #62,762 in Electronics ( See Top 100 in Electronics ) #324 in Car Component Subwoofers |
| Brand | Dayton Audio |
| Built-In Media | Speaker |
| Color | Black |
| Compatible Devices | Smartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop |
| Connectivity Technology | Wired |
| Control Method | Remote |
| Customer Reviews | 4.9 4.9 out of 5 stars (38) |
| Enclosure Material | Aluminum |
| Frequency Response | 22 Hz |
| Impedance | 4 Ohms |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 10"D x 10"W x 8"H |
| MP3 player | No |
| Manufacturer | Dayton Audio |
| Model Name | Dayton Audio UMII12-22 |
| Model Number | UMII12-22 |
| Mounting Type | Flush Mount |
| Number Of Circuits | 1 |
| Number of Items | 1 |
| Series Number | 2 |
| Speaker Maximum Output Power | 400 Watts |
| Speaker Size | 12 Inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | Home Theaters, Car Audio, Music Production |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 12 Inches |
| UPC | 848791010231 |
| Unit Count | 1.0 Count |
| Warranty Description | 5 Year |
| Warranty Type | Full |
| Water Resistance Level | Not Water Resistant |
| Woofer Diameter | 12 Inches |
C**N
Amazing subwoofer will blow your mind. buy it. buy it. buy it! do not hesitate!!!!!!
OK so I am loving this subwoofer. I currently am living with someone that runs two parts express knockdown flat pack sealed 15 inch boxes which is the exact same door 15 inch set up that I am currently about to do. He is running UM – 15–22 gen ones supposedly the gen 2’s sound better can handle a little bit more power. And is overall a better sub I haven’t heard it, but I love the look of both models. I am in love with the sound coming from the first generation subwoofer along with the Behringer NX 6000 D that we are both running all around is an amazing sub it digs deep it sounds absolutely amazing. It’ll blow your mind on DIY builds it functions amazing you can throw a lot of power at it and they will not blow. They will blow your mind in my opinion. The best bang for the book there is to buy if you run the right DSP settings, which it is a pain in the ass, but you can get them to sound absolutely phenomenal and cranked them to outrageous levels without bottoming out or distortion. They are all around a durable sub and I very much like them. I am super super super impressed. I cannot wait to buy a second one and get them to installed in my boxes and running. I will update this with videos very soon.!!!!
A**S
best for the money
this is the absolute best subwoofer you can get for 120$ if your chasing deep chest felt lows and low end extension. not an spl built driver but it still does get pretty loud too. you won't find a better option from any popular brand for 120$. buy it. absolutely digs the lows in my 29hz tuned box.
E**N
The best keept secret!!!
Very low distortion even at high cliping. Sounds great in the prefab ported skar box. Highly recommended. Very musical bass..Great build quality. Alot more high end then kicker or skar.
D**B
Nice upgrade to an existing subwoofer unit.
Purchased to replace an older blown driver of lesser quality. The original ported cabinet was in good shape and is in a commercial building so I didn't want to be called again for service. I picked this based on previous success with Dayton Audio drivers. This unit is 3 types the quality and weight of the one it replaced. The enhanced performance was noticeable as well however that really became obvious after about 6 hours of break in playing a playlist with heavy bass on each tune at normal volume. Again this driver is very heavy with is indicative of good quality.
J**K
Just a customer providing feedback
Upgraded from a decent 100$ sub. This has the excursion needed to reveal the feeling and musicality of the bass note as the artist intended. Very pleased. It would be good if a dual coil 4ohm was available as my other mono block isn’t 1ohm stable.
S**Y
Great for the pride point
Used for car audio for my case, sounds phenomenal, has no mechanical noise, I have it in an infinite baffle/ trunk baffle setup. Going roughly 8-months strong
P**L
Well made quality subwoofer.
Terrific sound quality. Looks and sounds amazing.
C**S
Looks cool, sounds great.
Great sounding woofer. I went with the Parts Express recommend sealed enclosure and paired it with the Dayton SPA500 amplifier. One of the keys to this woofer in my opinion is to let it break in properly. It was a little weak the first few of days of play but it definitely woke up after the break in period! Definitely a good value if are into building your own speakers.
Trustpilot
2 days ago
5 days ago