PEX Dayton Audio UM18 22 18" Ultimax DVC Subwoofer 2 ohms Per Coil P5477565PEX-295-518 https://cdnimages.opentip.com/full/PEX/PEX-295-518.jpg Dayton Audio UM18 22 18" Ultimax DVC Subwoofer 2 ohms Per Coil Manufacturer Part Number: UM18-22Highlights18\" design for enormous air movementOver 2\" of total cone travel!1000 watts RMS power handlingDual mirror-imaged linear spiders ensure distortion-free excursionDual 2 ohm, 2-layer copper voice coilsLarge vented pole piece and under-spider ventingDayton Audio UM18-22 18\" Ultimax DVC Subwoofer 2 ohms Per CoilIf you want outrageous amounts of bass, you gotta move some airWith the UM18-22 Ultimax 18\" driver, Dayton Audio has taken everything about the respected Dayton Audio Ultimax subwoofers to the extreme! Providing over 2\" of peak-to-peak excursion, the Ultimax 18 sweeps over six liters of air with each stroke! Truly not for the faint of heart!An audio bulldozer with the finesse of a sports carLike 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 1,000 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.Built to produce massive low frequency output and keep on doing itThe huge 18\" Nomex honeycomb composite curved cone features woven fiberglass outer skins for the ultimate in rigidity and resistance to damage, while the \"tall-boy\" rubber surround with integral gasket supports extreme stroke with linearity and durability. Dual 8\" spiders are mirror-imaged, to keep the 2\" of excursion completely linear and provide cancellation of distortion due to compliance asymmetry, for ultra-low mechanical distortion even at the outer limits of travel. And it\'s all held in perfect alignment by a rigid cast aluminium 12-spoke frame, for stability in any mounting position.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 32 Hz with a Qtc of .78 • 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 31 Hz, f10 of 18 Hz with a Qtc of 0.72 • Sealed (music): 7 cubic ft. (net internal, not including driver) for an f3 of 31 Hz, f10 of 15.8 Hz with a Qtc of 0.62 • 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 Hz, 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. Product Specifications Nominal Diameter:18\" Power Handling (RMS):1,000 Watts Power Handling (max):2,000 Watts Impedance:4 ohms Frequency Response:19 to 500 Hz Sensitivity:88.6 dB 2.83V/1m Voice Coil Diameter:3\" Thiele-Small Parameters Resonant Frequency (Fs):19.50 Hz DC Resistance (Re):4.4 ohms Voice Coil Inductance (Le):2.22 mH Mechanical Q (Qms):3.82 Electromagnetic Q (Qes):0.62 Total Q (Qts):0.53 Compliance Equivalent Volume (Vas):7.49 ft.3 Mechanical Compliance of Suspension (Cms):0.10 mm/N BL Product (BL):23.8 Tm Diaphragm Mass Inc. Airload (Mms):655g Maximum Linear Excursion (Xmax):22 mm Surface Area of Cone (Sd):1,219 cm2 Materials of Construction Cone Material:Nomex / Glass Fiber Surround Material:Rubber Voice Coil Former:Aluminum Basket / Frame Material:Cast Aluminum Magnet Material:Ferrite Mounting Information Overall Outside Diameter:18.24\" Baffle Cutout Diameter:16.75\" Depth:9\" Bolt Circle Diameter:17.40\" # Mounting Holes:8 Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion) Sealed Volume:4.22 ft.3 Sealed F3:31 Hz Vented Volume:11.79 ft.3 Vented F3:16 Hz Dayton Audio UM18-22 18\" Ultimax DVC Subwoofer 2 ohms Per Coil Brand:Dayton Audio Model:UM18-22 Part Number:295-518 UPC:848791001062 Product Category:Subwoofer Drivers Unit of Measure:EA Weight:44.3000 lbs. 5477565 848791001062 70.54lbs 0.00 0.00 0.00
Dayton Audio
385.54 2022-09-20 In Stock
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Dayton Audio UM18-22 18" Ultimax DVC Subwoofer 2 ohms Per Coil

Brand Dayton Audio
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Upc: 848791001062
SKU: PEX-295-518
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Product Description

Manufacturer Part Number: UM18-22

Highlights
  • 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


Dayton Audio UM18-22 18" Ultimax DVC Subwoofer 2 ohms Per Coil
If you want outrageous amounts of bass, you gotta move some air

With the UM18-22 Ultimax 18" driver, Dayton Audio has taken everything about the respected Dayton Audio Ultimax subwoofers to the extreme! Providing over 2" of peak-to-peak excursion, the Ultimax 18 sweeps over six liters of air with each stroke! Truly not for the faint of heart!

An audio bulldozer with the finesse of a sports car

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 1,000 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.

Built to produce massive low frequency output and keep on doing it

The huge 18" Nomex honeycomb composite curved cone features woven fiberglass outer skins for the ultimate in rigidity and resistance to damage, while the "tall-boy" rubber surround with integral gasket supports extreme stroke with linearity and durability. Dual 8" spiders are mirror-imaged, to keep the 2" of excursion completely linear and provide cancellation of distortion due to compliance asymmetry, for ultra-low mechanical distortion even at the outer limits of travel. And it's all held in perfect alignment by a rigid cast aluminium 12-spoke frame, for stability in any mounting position.

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 32 Hz with a Qtc of .78 • 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 31 Hz, f10 of 18 Hz with a Qtc of 0.72 • Sealed (music): 7 cubic ft. (net internal, not including driver) for an f3 of 31 Hz, f10 of 15.8 Hz with a Qtc of 0.62 • 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 Hz, 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.
Product Specifications
  • Nominal Diameter:18"
  • Power Handling (RMS):1,000 Watts
  • Power Handling (max):2,000 Watts
  • Impedance:4 ohms
  • Frequency Response:19 to 500 Hz
  • Sensitivity:88.6 dB 2.83V/1m
  • Voice Coil Diameter:3"
Thiele-Small Parameters
  • Resonant Frequency (Fs):19.50 Hz
  • DC Resistance (Re):4.4 ohms
  • Voice Coil Inductance (Le):2.22 mH
  • Mechanical Q (Qms):3.82
  • Electromagnetic Q (Qes):0.62
  • Total Q (Qts):0.53
  • Compliance Equivalent Volume (Vas):7.49 ft.3
  • Mechanical Compliance of Suspension (Cms):0.10 mm/N
  • BL Product (BL):23.8 Tm
  • Diaphragm Mass Inc. Airload (Mms):655g
  • Maximum Linear Excursion (Xmax):22 mm
  • Surface Area of Cone (Sd):1,219 cm2
Materials of Construction
  • Cone Material:Nomex / Glass Fiber
  • Surround Material:Rubber
  • Voice Coil Former:Aluminum
  • Basket / Frame Material:Cast Aluminum
  • Magnet Material:Ferrite
Mounting Information
  • Overall Outside Diameter:18.24"
  • Baffle Cutout Diameter:16.75"
  • Depth:9"
  • Bolt Circle Diameter:17.40"
  • # Mounting Holes:8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume:4.22 ft.3
  • Sealed F3:31 Hz
  • Vented Volume:11.79 ft.3
  • Vented F3:16 Hz
Dayton Audio UM18-22 18" Ultimax DVC Subwoofer 2 ohms Per Coil
  • Brand:Dayton Audio
  • Model:UM18-22
  • Part Number:295-518
  • UPC:848791001062
  • Product Category:Subwoofer Drivers
  • Unit of Measure:EA
  • Weight:44.3000 lbs.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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