Dayton Audio UMII10-22 Ultimax II 10″ DVC Subwoofer 2 Ohm Per Coil

Price: $169.98 - $152.99
(as of Oct 16, 2026 05:23:56 UTC – Details)

Product description

Dayton Audio UMII10-22 10″ Ultimax II DVC Subwoofer

Introducing the Dayton Audio UMII10-22 Ultimax II 10″ carbon fiber cone subwoofer – a compact powerhouse for all your bass needs. Built with cutting-edge technology, meticulous design, and a relentless pursuit of perfection, this subwoofer is here to redefine your audio experience. Offering deeper, cleaner, and more detailed bass with unrivaled authority, the UMII10-22 is engineered to bring your music, movies, and games to life like never before. With improved excursion capability, lower distortion, higher power handling capabilities, greater efficiency, and increased output, this subwoofer is an unstoppable force that will leave you breathless. No matter if you’re a home theater enthusiast, a car audio aficionado, or a devout audiophile, the Dayton Audio Ultimax II is the obvious choice for those who crave earth-shaking sound.

Don’t settle for less when it comes to bass – embrace the power, precision, and impact offered by the Dayton Audio UMII10-22. Elevate your audio experience and immerse yourself in a world of deep, thunderous bass that will shake you to your core. Upgrade your system today and feel the full potential of what exceptional subwoofer technology can deliver. The Dayton Audio UMII10-22 Ultimax II, the subwoofer that sets the new standard for bass performance.

Key Specs:

Nominal Diameter: 10″Power Handling (RMS): 600WPower Handling (MAX): 1,200WImpedance: 2Ω + 2Ω (Dual voice coils)Frequency Response: 25- 500HzSensitivity: 87.3 dB 2.83V/1mVoice Coil Diameter: 2-1/2″Maximum Linear Excursion: ±20 mm

Carbon Fiber Cone and High Roll Rubber Surround

With a remarkably high strength to weight ratio, Dayton Audio chose a single layer woven carbon fiber cone for the Ultimax II. This rigid diaphragm resists deformation from the stress of high displacement to ensure pistonic movement and extreme durability. Thanks to the low mass, this driver can reproduce every detail with accuracy and control. More than just a cosmetic touch, the cone is indexed for a smooth transition between the cone and surround adding extra rigidity on the edge to minimize unwanted resonances. Supporting the diaphragm is a high roll butyl rubber surround that has been optimized to allow extreme excursion without sacrificing cone area.

Additional Features

2-1/2″ Flat Wound Voice Coil

In order to reliably handle up to 600 watts RMS, the UMII10-22 is driven by a 2-1/2″ diameter, 4-layer, flat wound voice coil on a vented aluminum former. The flat ribbon wire has significantly more surface and contact area than round wire resulting in improved heat transfer and dissipation. The 4 layers put more windings in the magnetic gap while keeping the gap as tight as possible, improving motor strength and overall control. Additionally, the thick aluminum former plays a crucial role by efficiently drawing heat away from the voice coil, the first step to keeping the motor cool.

Optimized Motor with Extensive Venting

In order to ensure optimal performance and minimize distortion, the voice coil is driven by a FEA optimized magnet assembly. This assembly creates a powerful and symmetric magnetic field in the center of the voice coil allowing for identical forward and backward movement of the cone, even at maximum displacement. The top and back plates have been precisely machined with sculpted edges to effectively contain and transfer the magnetic force. To prevent overheating, the motor assembly and frame feature extensive venting, allowing heat to escape from the voice coil and former. This venting is achieved through various paths, including the voice coil former, sub-cone, under the spider, through the pole piece, and voice coil gap, ensuring efficient cooling and preventing power compression, even during long listening sessions.

Low Distortion Shorting Cap and Sleeve

To keep distortion at a minimum, the UMII10-22 incorporates an aluminum shorting sleeve and a thick aluminum pole piece cap. These elements play a crucial role in maintaining stability and consistency in the motor’s magnetic field as the voice coil moves within the magnetic gap. In addition, they ensure that the inductance remains linear throughout the entire stroke of the voice coil. This consistent motor force is instrumental in minimizing non-linearities and intermodulation distortion. Moreover, the shorting rings contribute to a reduction in the overall inductance of the voice coil, thereby enhancing the output capability in the mid-bass and upper bass frequencies.

Dual Spiders with Stitched Tinsel Leads

Achieving truly linear movement in high excursion drivers is of utmost importance. Even the tiniest rocking motion can be greatly magnified as the cone travels further away from its resting position. In order to avoid this issue, the UMII10-22 driver incorporates a dual spider system. The spiders are intentionally spaced as far apart as possible to ensure that the cone and voice coil move reliably in a pistonic manner. Furthermore, in order to prevent fatigue and breakage the tinsel leads have been meticulously stitched onto the top spider. This not only enhances the overall durability but also eliminates any possibility of contact between the leads and the cone or spider.

Additional Specs:

Nominal Diameter 10″ Bolt Circle Diameter 9.92 Power Handling (RMS) 600 Watts Power Handling (MAX) 1200 Watts Impedance 4Ω Frequency Response 25 – 500Hz Sensitivity 87.3dB 2.83V/1m Voice Coil Diameter 2.5″ Resonant Frequency (Fs) 39Hz DC Resistance (Re) 4Ω Voice Coil Inductance (Le) 0.74mH Mechanical Q (Qms) 2.67 Electromagnetic Q (Qes) 0.73 Total Q (Qts) 0.57 Compliance Equivalent Volume 0.75ft³ BL Product (BL) 13.4T·m

A large aluminum shorting cap and sleeve help keep inductance linear to guarantee minimal distortion
The rigid yet lightweight woven carbon fiber cone delivers quick, detailed, and accurate response
With ±20 mm xmax, you can expect powerful and deep bass response, taking your audio experience to the next level
Equipped with a 4-layer 2-1/2″ flat wound voice coil that can handle up to 600 watts RMS
The frame and motor include extensive venting ensuring efficient heat dissipation for consistent and reliable operation, while minimizing power compression
Dual spiders maintain cone linearity even at extremely high excursion levels, providing peak audio performance at all times
Optimized for compact sealed enclosures, but capable of exceptional low frequency extension in vented designs – offering you the freedom to create the perfect audio setup