UM18-22 18" Ultimax DVC Subwoofer 2 ohm Per Coil
18" design for enormous air movement
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Like the rest of the Ultimax series, the UM18-22 plays it clean, low, fast, and LOUD. Designed to excel in either sealed or vented enclosures, it features an ultra-powerful triple stack of high-grade ferrite ceramic magnets for ultra-high force and exceptional control, plus dual aluminum shorting rings above and below the magnetic gap for minimized inductance, “faster”-sounding bass response, and perfect magnetic symmetry. The voice coil diameter has been increased to 3 inches, for even more thermal dissipation area that allows the 18” model to withstand 1000 watts of punishing bass power continuously without thermal fatigue. Dual 2-ohm voice coils allow for stereo 2 ohm operation, or mono operation in 1 ohm or 4 ohm configurations, for true design flexibility.
Put your home’s construction to the test with the phenomenal bass output of this 18” beast!
Car audio recommended alignments:
• Sealed 3 cubic ft. (net internal, not including driver) for an f3 of 28 Hz with a Qtc of .8
• Vented 4 cubic ft. (net internal, not including driver or vent ) tuned to 22 Hz, with 2 flared vents 4" diameter by 32" long, for an f3 of 24 Hz
Home theater/stereo recommended alignments:
• Sealed (home theater/music): 4 cubic ft. (net internal, not including driver) for an f3 of 27 Hz, f10 of 18 Hz with a Qtc of 0.7
• Sealed (music): 7 cubic ft. (net internal, not including driver) for an f3 of 26 Hz, f10 of 15.8 Hz with a Qtc of 0.76
• Vented (home theater): 8 cubic ft. (net internal, not including driver or vent) tuned to 20 Hz, with 3 flared vents 4" diameter by 28.5" long, for an f3 of 18 Hz
• Vented (infra-sub): 12 cubic ft. (net internal, not including driver or vent) tuned to 15.5, with 3 flared vents 4" diameter by 32" long, for an f3 of 15 Hz
• Infinite Baffle: Approved (reaction force cancellation recommended)
Note: All specifications are derived with voice coils wired in series.
Check out this UM18-22 review!
(848791001062)
• 18" design for enormous air movement
• Over 2" of total cone travel!
• 1000 watts RMS power handling
• Dual mirror-imaged linear spiders ensure distortion-free excursion
• Dual 2 ohm, 2-layer copper voice coils
• Large vented pole piece and under-spider venting
| Speaker Series | Ultimax Series |
|---|---|
| Model Number | UM18-22 |
| Color | Black |
| Unit of Measure | Each |
| UPC | 848791001062 |
| Warranty - Parts | 5 Years |
| Warranty - Labor | 5 Years |
| Product Shipping Weight (lbs.) | 44.3000 |
| Speaker Type | Subwoofer |
| Nominal Diameter | 18" |
| Power Handling (RMS) | 1,000 watts |
| Power Handling (max) | 2,000 watts |
| Continuous Program Power | -- |
| Impedance | 4 ohms |
| Sensitivity | 88.6 dB @ 2.83V/1m |
| Frequency Response | 19 - 500 Hz |
| Voice Coil Diameter | 75 mm |
| Magnet Weight | -- |
| DC Resistance (Re) | 4.4 ohms |
| Voice Coil Inductance (Le) | 2.22 mH @ 1 kHz |
| Resonant Frequency (Fs) | 19.5 Hz |
| Mechanical Q (Qms) | 3.82 |
| Electromagnetic Q (Qes) | 0.62 |
| Total Q (Qts) | 0.53 |
| Diaphragm Mass Inc. Airload (Mms) | 655g |
| Moving Mass Of Diaphragm (Mmd) | -- |
| Mechanical Compliance of Suspension (Cms) | 0.1 mm/N |
| Surface Area Of Cone (Sd) | 1,219 cm² |
| Volume of Displacement (Vd) | 2,681.8 cm³ |
| BL Product (BL) | 23.8 Tm |
| Compliance Equivalent Volume (Vas) | 212 liters |
| Maximum Linear Excursion (Xmax) | 22 mm |
| Driver's Mechanical Losses (Rms) | -- |
| Cone / Diaphragm Material | Nomex Cone |
| Entry / Exit Diameter | -- |
| Surround Material | Rubber |
| Voice Coil Wire Material | -- |
| Voice Coil Former | -- |
| Basket/Frame Material | Cast Aluminum |
| Magnet Material | Ferrite |
| Overall Outside Diameter | 18.5" |
| Overall Depth | 9" |
| Baffle Cutout Diameter | 17" |
| # Mounting Holes | 8 |
| Mounting Hole Diameter | -- |
| Bolt Circle Diameter | -- |
| Product Weight | -- |
| SKU | 848791001062 |
| Model # | UM18-22 |
| Barcode # | 848791001062 |
| Brand | Dayton Audio |
| Shipping Weight | 26.2440kg |
| Shipping Width | 0.533m |
| Shipping Height | 0.356m |
| Shipping Length | 0.533m |
| Shipping Cubic | 0.101174000m3 |
Dayton ultimax 18
By: Mike on 21 October 2015I purchased this driver about 9 months ago. It is an incredible speaker. I have it in a 10cft box tuned to 15hz. IT NEVER struggles and will shake the walls when asked. I highly recommend it. Give it 2000watts and it will scare you.
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