Dayton Audio UMII18-22 Ultimax II 18″ DVC Subwoofer 2 Ohm Per Coil
Overview:
Introducing the UMII18-22 Ultimax II 18″ Carbon Fiber Cone subwoofer from Dayton Audio – the next evolution of low frequency excellence. Building upon the legendary reputation of its predecessor, this subwoofer has what it takes to deliver an exceptional listening experience. With improved excursion capability, lower distortion, higher power handling, better efficiency, and increased output, this driver was purposefully engineered to provide mind-blowing bass that will leave you breathless. Discover unparalleled bass immersion with the UMII18-22 subwoofer, delivering precision and power for those in pursuit of the ultimate sound.
Key Features:
- 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 ±28 mm xmax, you can expect powerful and deep bass response, taking your audio experience to the next level
- Equipped with a 4-layer 3″ flat wound voice coil that can handle a staggering 1,200 watts RMS, you can expand the boundaries of audio excellence
- 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
Product Details:
Brand | Dayton Audio |
Model | UMII18-22 |
Unit of Measure | Each |
Weight | 47.6 |
Product Specification:
Nominal Diameter | 18″ |
Bolt Circle Diameter | 17.6 |
Power Handling (RMS) | 1200 Watts |
Power Handling (MAX) | 2400 Watts |
Impedance | 4Ω |
Frequency Response | 20 to 500Hz |
Sensitivity | 90.7dB 2.83V/1m |
Voice Coil Diameter | 3″ |
Thiele Small Parameters:
Resonant Frequency (Fs) | 22Hz |
DC Resistance (Re) | 4.2Ω |
Voice Coil Inductance (Le) | 1.15mH |
Mechanical Q (Qms) | 2.53 |
Electromagnetic Q (Qes) | 0.67 |
Total Q (Qts) | 0.53 |
Compliance Equivalent Volume (Vas) | 8.77ft³ |
Mechanical Compliance of Suspension (Cms) | 0.124mm/N |
BL Product (BL) | 19.2T·m |
Diaphragm Mass Inc. Airload (Mms) | 420g |
Maximum Linear Excursion (Xmax) | 28mm |
Surface Area of Cone (Sd) | 1184cm² |
Materials of Construction:
Cone Material | Carbon Fiber |
Surround Material | Rubber |
Basket / Frame Material | Cast Aluminum |
Magnet Material | Ferrite |
Mounting Information:
Overall Outside Diameter | 18.5″ |
Baffle Cutout Diameter | 16.80″ |
Depth | 8.6″ |
# Mounting Holes | 8 |
Dayton Audio UMII18-22 Graphs/FRD/ZMA Data File
Dayton Audio UMII18-22 Ultimax II Specifications
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