3. Single Subwoofer SQ
  5. Ultimax II UMII10-22

Ultimax II UMII10-22

500 Watt

Ultimax II UMII10-22

Technical Highlights

  • RMS power 500 Watts, impedance 2+2 Ω, peak power 1,000 Watts.
  • Frequency response 25–500 Hz, resonant frequency 39 Hz, excursion 20 mm.
  • DC resistance 4 Ω, voice coil 63.5 mm, sensitivity 87.2 dB.
  • More technical details
€232.75
€239.00 €232.75
2% discount with credit card

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ProductUltimax II UMII10-22

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€232.75
€239.00 €232.75

More power than Ultimax II UMII10-22 here!

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The Ultimax II UMII10-22 from Dayton Audio is a 10-inch (25 cm) Subwoofer with dual 2 Ohm voice coils. The construction features a thick, one-piece Nomex honeycomb cone with woven, durable fiberglass and an aluminum basket, complemented by two linear stiffness spiders. The voice coil measures 63.5 mm and is made of dual-layer copper, with a maximum excursion of 20 mm. Technical specifications include a sensitivity of 87.2 dB, an impedance of 2+2 Ω, a DC resistance of 4 Ω, a resonance frequency of 39 Hz, and a frequency response of 25–500 Hz. The dimensions are 266 mm outer diameter, 184 mm total depth, and 236 mm cutout diameter, with 8 mounting holes of 6.5 mm each. Additional parameters include a diaphragm area of 345 cm², a displacement volume of 689 cm³, a force factor of 13.4 Tm, and an equivalent volume of 21.2 liters.

Features
  • 10-inch (25 cm) Subwoofer
  • Thick, one-piece Nomex honeycomb cone with woven, durable fiberglass
  • Two linear stiffness spiders
  • Two 2 Ohm voice coils made of dual-layer copper, 63.5 mm diameter
  • Aluminum basket/frame
  • Optimized for sealed and vented enclosures
  • Impedance 2+2 Ohm
  • RMS power 500 Watts
  • Peak power 1,000 Watts
  • Maximum excursion 20 mm
Technical Specifications
  • Woofer Series: Ultimax II DVC
  • Woofer Type: Subwoofer
  • Nominal Diameter: 254 mm
  • Power Handling (QMW): 600 Watts
  • Sensitivity (SPL at 1 m/2.83 V): 87.2 dB
  • Frequency Response: 25–500 Hz
  • Voice Coil Diameter: 63.5 mm
  • DC Resistance (Re): 4 Ω
  • Voice Coil Inductance (Le): 0.74 mH
  • Resonance Frequency (Fs): 39 Hz
  • Mechanical Q (Qms): 2.67
  • Electrical Q (Qes): 0.73
  • Total Q (Qts): 0.57
  • Moving Mass (Mms): 134 g
  • Suspension Compliance (Cms): 0.126 mm/N
  • Diaphragm Area (Sd): 345 cm²
  • Displacement Volume (Vd): 689 cm³
  • Force Factor (BL): 13.4 Tm
  • Equivalent Volume (Vas): 21.2 liters
  • Basket/Frame Material: Aluminum
  • Outer Diameter: 266 mm
  • Total Depth: 184 mm
  • Cutout Diameter: 236 mm
  • Mounting Holes: 8
  • Mounting Hole Diameter: 6.5 mm

Immediately available 10" (25cm) Subwoofer

    Frequently Asked Questions about Ultimax II UMII10-22

    How loud can the Dayton Audio Ultimax II UMII10-22 Subwoofer be operated?

    The Dayton Audio Ultimax II UMII10-22 Subwoofer features an RMS power of 500 watts and a peak power of 1,000 watts, allowing for impressive volume levels. The sensitivity of the subwoofer is 87.2 dB measured at 1 m/2.83 V. The maximum excursion of the diaphragm is 20 mm, contributing to powerful bass reproduction in both sealed and vented enclosure variants. This means you can achieve volumes that satisfy even demanding audio projects, despite variable damping. With its high power handling, the subwoofer is capable of mastering extreme bass requirements with ease.

    What frequency ranges does the Dayton Audio Ultimax II UMII10-22 cover?

    The frequency response of the Dayton Audio Ultimax II UMII10-22 ranges from 25 Hz to 500 Hz, covering a particularly wide bass range. With a resonance frequency of 39 Hz, the subwoofer produces deep, powerful bass tones, ideal for demanding audio projects. The construction features a thick Nomex honeycomb cone with fiberglass, allowing for precise and clear bass reproduction. The linear stiffness spiders maintain control over the diaphragm, ensuring a balanced frequency response across the entire spectrum. These technical features make the subwoofer particularly attractive to audio enthusiasts.

    How can I best install the Ultimax II UMII10-22 Subwoofer in a car?

    The Dayton Audio Ultimax II UMII10-22, with an outer diameter of 266 mm and a cutout diameter of 236 mm, can be easily integrated into most trunk areas. The overall mounting depth of 184 mm and the mounting holes with a diameter of 6.5 mm provide versatile installation options. When installing, ensure that the voice coils are wired in parallel to meet the specific impedance of 2+2 Ohm. This allows for even power distribution across the 63.5 mm voice coil, achieving optimal sound effects without distortion.

    Is the Dayton Audio UMII10-22 Subwoofer suitable for sealed or vented enclosures?

    The Dayton Audio Ultimax II UMII10-22 is designed for both sealed and vented enclosures. With an equivalent volume (Vas) of 21.2 liters and a sealed aluminum basket, it offers flexible installation options. A sealed enclosure provides precise bass sound, while a vented enclosure emphasizes the deep bass range, ideal for music with intense bass tracks. A thick Nomex honeycomb cone further contributes to adaptability, while the linear stiffness spiders support the diaphragm in all configuration modes. Thus, the sub offers versatile use in the DIY sector.

    What technical parameters influence the bass performance of the UMII10-22?

    Various technical parameters influence the bass performance of the UMII10-22 Subwoofer from Dayton Audio. With a force factor (BL) of 13.4 Tm, the voice coil generates powerful magnetic forces. The displacement volume (Vd) of 689 cm³ and the moving mass (Mms) of 134 g also affect the bass dynamics. The DC resistance (Re) of 4 Ω, combined with the voice coil inductance (Le) of 0.74 mH, optimizes the diaphragm's response speed to electrical signals. Finally, the resonance frequency (Fs) of 39 Hz and the compliance of the suspension (Cms) of 0.126 mm/N ensure tight yet intense bass.

    What materials are used in the construction of the Dayton Audio UMII10-22?

    In the construction of the Dayton Audio UMII10-22, high-quality materials are used to ensure maximum performance and durability. The aluminum basket/frame not only provides stability but also improves heat dissipation. The diaphragm cone made of Nomex honeycomb material combined with fiberglass-reinforced material ensures high strength and reduces unwanted vibrations. These materials guarantee precise bass reproduction. The dual-layer copper voice coils with a diameter of 63.5 mm increase heat resistance and durability, while two linear stiffness spiders allow control over diaphragm movement.

    What Thiele-Small parameters does the Dayton Audio UMII10-22 have?

    The Dayton Audio UMII10-22 Subwoofer features specific Thiele-Small parameters that define its audio performance. The mechanical quality (Qms) is 2.67, the electrical quality (Qes) is 0.73, and the total system quality (Qts) is 0.57. These parameters ensure a balanced resonance frequency (Fs) of 39 Hz and efficient control of the moving mass (Mms) of 134 g. The equivalent volume value (Vas) of 21.2 liters and the compliant suspension (Cms) of 0.126 mm/N also contribute to acoustic optimization, making the subwoofer ideal for demanding audio users.

    How does the force factor affect the sound of the Dayton Audio Ultimax II UMII10-22?

    The force factor (BL) of the Dayton Audio Ultimax II UMII10-22 is defined as 13.4 Tm, which has a significant impact on sound quality. The high BL value means that the voice coil generates strong electromagnetic forces necessary for precise and powerful sound reproduction. Control over the diaphragm movement is improved, minimizing distortion. Combined with the dual-layer copper voice coil and the 63.5 mm diameter, the Subwoofer produces dense, clean bass that remains intact at high volumes. These parameters are integral to high-quality audio playback performance.

    What installation requirements should be considered when using the UMII10-22?

    When installing the Dayton Audio UMII10-22, several technical aspects should be taken into account. The cutout diameter of 236 mm and the overall depth of 184 mm are crucial for cabinet planning. The 8 mounting holes with a diameter of 6.5 mm facilitate secure installation. The Subwoofer is suitable for sealed and vented enclosures, which should be factored into the design considerations. It is also important to ensure that the impedance of the dual 2-ohm voice coils is taken into account. These technical requirements ensure a structured and effective installation of the Subwoofer for optimal functionality and performance.

    Why is fiberglass advantageous in the construction of the Dayton Audio UMII10-22?

    The use of fiberglass in the construction of the Dayton Audio UMII10-22 offers significant acoustic and structural advantages. The cone membrane, made from a thick, one-piece Nomex honeycomb material with woven, durable fiberglass, ensures high strength while being lightweight. This material combination allows for faster and more precise movement of the cone, resulting in distortion-free reproduction of low frequencies. Fiberglass enhances structural integrity, minimizing mechanical deformations and thus maintaining tonal neutrality. This creates an optimal balance between stiffness and damping, refining bass reproduction.

    Manufacturer information/responsible person

    Audio Components BV
    Koen Pronk, Martijn Ouwerkerk
    Peizerweg 97a
    9727AJ Groningen
    Netherlands


    Contact: info@audio-components.com

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