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Ultimax UM8-22 Subwoofer

€219,95

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Dayton Audio Ultimax UM8-22 Subwoofer

5 reviews

Brand: Dayton Audio

Show all Subwoofer

8" | 2+2 Ω

€ 181,78€ 219,95 6 In stock10+ expected on 31-05-2024

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Five-year warranty
45-day cooling-off period to return

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Product description

Dayton Audio's Ultimax Series DVC subwoofers are purpose-built to move air and create clean, articulate, fast bass. Optimized for small enclosures and with over 1-1/4" of throw, the UM8-22 8" subwoofer is perfect for providing deep bass without taking up much space. Experience the apex of subwoofer design.

Highlights

16 mm xmax makes this one of the highest excursion 8" subwoofers on the market
Thick, one-piece Nomex honeycomb covered cone with woven heavy-duty glass-fiber
Tall-boy rubber surround for extra-long linear excursion without reducing cone surface area
Dual linear stiffness spiders limit distortion and rocking modes
300 watts RMS power handling
Black anodized aluminum former and black pole improves heat dissipation
Dual 2 ohm, 2-layer copper voice coils

Product details

Dayton Audio UM8-22 8" Ultimax DVC Subwoofer 2 Ohms Per Coil

If you want outrageous amounts of bass, you gotta move some air

The Ultimax Series of dual voice coil subwoofers, from Dayton Audio, are not for the faint of heart. Built using the latest in subwoofer technology, Ultimax subwoofers are the pinnacle of low frequency driver design. An Ultimax subwoofer tests the strength of your foundation with fast, articulate, gut-wrenching bass.

The versatility you need for mobile, home, or pro subwoofer excellence

Dual 2 ohm voice coils allow for stereo 2 ohm and mono 1 ohm wiring configurations when connecting to high current car audio and professional audio amplifiers to extract maximum power. For home audio applications, simply wire the voice coils in series for a benign 4 ohm load for greater amplifier compatibility.

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

To improve power handling, increase thermal management, and reduce power compression, Dayton Audio designed the Ultimax Series with large black anodized formers and vented pole pieces, under-spider ventilation, and two-layer copper voice coils.

Over 1-1/4" of travel (.67" Xmax) is kept completely linear through the use of dual spiders that also limit distortion and rocking modes. "Tall-boy" rubber surrounds with integrated gaskets maintain driver surface area during extreme excursion moments. The thick, one-piece Nomex honeycomb cone is covered with woven, heavy-duty glass fibers creating an ultra-stiff surface that resists deformation.

A strong motor takes you to wherever you want to be

A large copper sleeve and copper pole cap in the motor reduce energy storage from inductance, with the side benefit of lowering distortion for "faster" response. Large dual-stacked, high-energy magnets handle the heavy lifting and bring Qts down to a level where Ultimax subwoofers can be used in vented or sealed cabinets and enclosures.

Cabinet recommendations:

Sealed 0.35 cubic ft. (net internal), f3 of 49 Hz with a 0.8 Qtc alignment
Vented 0.75 cubic ft. (net internal, not including driver or port volume) tuned to 30 Hz with a 10" wide by 1" high slot port that is 30" long, which yields an f3 of 30 Hz

Note: All parameters derived with voice coils wired in series.

Specifications

Article number: UM8-22
Woofer Series: Ultimax Series
Woofer Type: Subwoofer
Nominal Diameter: 8"
Power Handling (RMS): 300 watts
Power Handling (max): 600 watts
Impedance (Z): 2+2 ohms
Sensitivity (SPL at 1m / 2.83V): 84.2 dB
Frequency Response: 30 - 800 Hz
Voice Coil Diameter: 2"
DC Resistance (Re): 4.2Ω
Voice Coil Inductance (Le): 0.73mH
Resonant Frequency (Fs): 34.3Hz
Mechanical Q (Qms): 2.47
Electromagnetic Q (Qes): 0.87
Total Q (Qts): 0.64
Diaphragm Mass Inc. Airload (Mms): 81.2g
Mechanical Compliance of Suspension (Cms): 0.27mm/N
Surface Area of Cone (Sd): 211.2 cm²
Volume of Displacement (Vd): 359.1 cm³
BL Product (BL): 9.2T·m
Compliance Equivalent Volume (Vas): 16,7 liters
Maximum Linear Excursion (Xmax): 16 mm
Cone / Diaphragm Material: Nomex Cone
Surround Material: Rubber
Voice Coil Wire Material: Copper
Voice Coil Former: Aluminum
Dual Voice Coil: Yes
Basket / Frame Material: Cast Aluminum
Magnet Material: Ferrite
Overall Outside Diameter: 209"
Overall Depth: 143.4"
Baffle Cutout Diameter: 197.5"
# Mounting Holes: 8
Sealed Volume: 0.35 cubic ft. (net internal)
Sealed F3: 49 Hz with a 0.8 Qtc alignment
Vented Volume: 0.75 cubic ft. (net internal, not including driver or port volume) tuned to 30 Hz with a 10" wide by 1" high slot port that is 30" long
Vented F3: 30 Hz

Reviews

5 reviews

Review this product

5 of 5

Sound imports are fantastic I swapped a JL 8w3 that had a blown coil for a Dayton UM8-22 and this thing thumps could even be better than the JL at less than half the price.

By Luke on 1 April 2024

4 of 5

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By Christoph on 28 January 2023