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      Dayton Audio UM8-22 8" Ultimax DVC Subwoofer

      € 165,25€ 199,95 10+ In stock: delivery time 1-4 business days
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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
      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

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      Reviews

      5 from 5Based on 2 reviews
      Review this product
      5 of 5
      Wat een geweldig spul, een ieder zou een subwoofer moeten hebben
      By Steven M. on 23 June 2020
      5 of 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
      UM8-22 8" Ultimax DVC Subwoofer
      € 165,25
      € 199,95
      UM8-22 8" Ultimax DVC Subwoofer
      10+ In stock: delivery time 1-4 business days
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