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    Dayton Audio UM8-22 8" Ultimax DVC Subwoofer

    € 164,95 Out of stock: delivery time is 3-6 weeks
    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... Show more
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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
    2+2 ohms
    Sensitivity
    84.2 dB @ 2.83V/1m
    Frequency Response
    30 - 800 Hz
    Voice Coil Diameter
    2"
    DC Resistance (Re)
    4.2 ohms
    Voice Coil Inductance (Le)
    1.14 mH
    Resonant Frequency (Fs)
    31.6 Hz
    Mechanical Q (Qms)
    2.51
    Electromagnetic Q (Qes)
    0.75
    Total Q (Qts)
    0.58
    Diaphragm Mass Inc. Airload (Mms)
    74.5g
    Mechanical Compliance of Suspension (Cms)
    0.33 mm/N
    Surface Area of Cone (Sd)
    211.2 cm²
    Volume of Displacement (Vd)
    359.1 cm³
    BL Product (BL)
    9.1 Tm
    Compliance Equivalent Volume (Vas)
    21.30 liters
    Maximum Linear Excursion (Xmax)
    16.0 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 from 5Based on 2 reviews
    Review this product
    5 van 5
    Wat een geweldig spul, een ieder zou een subwoofer moeten hebben
    By Steven M. on 23 June 2020
    5 van 5
    Excellent build quality and packaging. Just running in prior to measuring and starting the enclosure building. So impressed, I’ll be ordering a couple more soon.
    By Robert M. on 8 October 2019

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    UM8-22 8" Ultimax DVC Subwoofer
    € 164,95
    UM8-22 8" Ultimax DVC Subwoofer
    0 In stock: delivery time is 3-6 weeks
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