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        Ultimax UM18-22 Subwoofer audio components

        Ultimax UM18-22 Subwoofer audio components


        Dayton Audio Ultimax UM18-22 Subwoofer audio components

        25 reviews
        5 from 5
        25 reviews
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        € 413,18€ 499,95 Out of stock10+ expected on 02-02-2024
        • -5% Purchase 4 for only € 474,95 per piece
        • -10% Purchase 8 for only € 449,96 per piece

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        Product description

        Dayton Audio’s Ultimax Series DVC subwoofers are purpose-built to move tons of air and create clean, articulate, fast bass. Experience the apex of subwoofer design!



        • 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


        Product details

        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!

        Feel Maximum Power On The Road

        The Ultimax UM18-22 18" Subwoofer delivers more than enough power to rock the road ways. The sub is a perfect pick to add massive low end to your mobile audio speaker build. If you are looking for fast, articulate bass that really fills your car, look no further than the UM18-22.


        Build Your Own Personal Cinema

        Not only is the UM18-22 great for car audio, it fits perfectly at home in your theater or listening room. The detailed response and low end strength lets you feel the rumble in your movies and gives you a concert-like music listening experience.

        Cabinet Recommendations

        • Sealed (home theater/music): 4 cubic ft. (net internal, not including driver volume) produces an f3 of 33 Hz with a 0.85 Qtc alignment
        • Vented: 6 cubic ft. (net internal, not including driver or port volume)  produces an f3 of 22 Hz. Larger cabinets and lower tuning frequencies are possible.


        Note: All specifications are derived with voice coils wired in series.

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        Article number
        Woofer Series
        Ultimax Series
        Woofer Type
        Nominal Diameter
        Power Handling (RMS)
        1,000 watts
        Power Handling (max)
        2,000 watts
        Impedance (Z)
        4 ohms
        Sensitivity (SPL at 1m / 2.83V)
        88.6 dB
        Voice Coil Diameter
        75 mm
        DC Resistance (Re)
        Voice Coil Inductance (Le)
        Resonant Frequency (Fs)
        Mechanical Q (Qms)
        Electromagnetic Q (Qes)
        Total Q (Qts)
        Diaphragm Mass Inc. Airload (Mms)
        Mechanical Compliance of Suspension (Cms)
        Surface Area of Cone (Sd)
        1,219 cm²
        Volume of Displacement (Vd)
        2,681.8 cm³
        BL Product (BL)
        Compliance Equivalent Volume (Vas)
        144.7 liters
        Maximum Linear Excursion (Xmax)
        Cone / Diaphragm Material
        Nomex Cone
        Surround Material
        Dual Voice Coil
        Basket / Frame Material
        Cast Aluminum
        Magnet Material
        Overall Outside Diameter
        Overall Depth
        Baffle Cutout Diameter
        # Mounting Holes
        Sealed Volume
        3 cubic ft. (net internal, not including driver)
        Sealed F3
        28 Hz with a Qtc of .8
        Vented Volume
        4 cubic ft. (net internal, not including driver or vent ) tuned to 22 Hz, with 2 flared vents 4" diameter by 32" long
        Vented F3
        24 Hz

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        5 of 5
        By Johan on 15 November 2023
        5 of 5
        Fantastic 18'' sub drivers I purchased two of them & built my own ported boxes to house them into the sub base that these things produce will certainly put a smile on your face. I am over the moon with these subwoofer drivers the base is tight controlled and articulate far better than I ever imagined and much louder deeper than my previous 15'' subdrivers which I sold to purchase the Dayton 18''. You have to hear them in your room to apprecia...

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        By [email protected] on 10 August 2023
        Show more
        Ultimax UM18-22 Subwoofer audio components
        € 413,18
        € 499,95
        Ultimax UM18-22 Subwoofer audio components
        Out of stock
        10+ expected on 02-02-2024
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