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Dayton Audio Ultimax II UMII10-22 10" (25cm) Subwoofer

Dayton Audio Ultimax II UMII10-22 10" (25cm) Subwoofer

Technical Highlights

  • 500 watts RMS power, 1,000 watts peak power, for deep bass.
  • Two 2 ohm voice coils, flexible wiring, 4 ohms re.
  • 87.2 dB sensitivity, frequency response 25-500Hz, Xmax 20mm.
  • More technical details
Normal price €239,00
Normal price €239,00 Selling price €239,00
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Normal price €239,00
Normal price €239,00 Selling price €239,00

Ultimax II UMII10-22 by Dayton Audio

The Ultimax II UMII10-22 from Dayton Audio is a 10 inch (25 cm) subwoofer designed for impressive bass performance. Featuring a thick, one-piece Nomex honeycomb cone reinforced with durable fiberglass, this subwoofer offers high durability and minimal distortion. Equipped with dual 2-ohm voice coils, it provides flexible wiring options. The subwoofer can handle 500 watts RMS and up to 1,000 watts peak power, delivering deep, clean bass. Optimized for sealed and vented enclosures, the UMII10-22 delivers powerful low-frequency performance while its design minimizes distortion and maximizes efficiency.

Features

  • Thick, one-piece Nomex honeycomb cone with woven, durable fiberglass
  • Two linear stiffness spiders limit distortion and vibration modes
  • 500 watts RMS power handling and 1,000 watts peak power
  • Two 2-ohm dual-layer copper voice coils for flexible wiring configurations

Specifications

  • Woofer Series: Ultimax II DVC
  • Woofer Type: Subwoofer
  • Nominal Diameter: 10 inches
  • Power Handling (QMW): 600 watts
  • Impedance (Z): 2+2 Ω
  • Sensitivity (SPL at 1m/2.83V): 87.2 dB
  • Frequency Response: 25-500Hz
  • Voice Coil Diameter: 63.5mm
  • DC Resistance (Re): 4Ω
  • Voice Coil Inductance (Le): 0.74mH
  • Resonant Frequency (Fs): 39Hz
  • Mechanical Q (Qms): 2.67
  • Electrical Q (Qes): 0.73
  • Total Q (Qts): 0.57
  • Moving Mass (Mms): 134g
  • Suspension Compliance (Cms): 0.126mm/N
  • Effective Cone Area (Sd): 345cm²
  • Displacement Volume (Vd): 689cm³
  • Force Factor (BL): 13.4Tm
  • Equivalent Volume (Vas): 21.2 Liters
  • Maximum Excursion (Xmax): 20mm
  • Basket/Frame Material: Aluminum
  • Outer Diameter: 266mm
  • Total Depth: 184mm
  • Cutout Diameter: 236mm
  • Mounting Holes: 8
  • Mounting Hole Diameter: 6.5mm

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Frequently Asked Questions about Ultimax II UMII10-22


What performance specifications does the Dayton Audio Ultimax II UMII10-22 Subwoofer offer?

The Dayton Audio Ultimax II UMII10-22 Subwoofer has an RMS power handling of 500 watts and can achieve peak power of up to 1,000 watts. The dual 2-ohm voice coils made of dual-layer copper allow for flexible wiring configurations, making it easy for you to make adjustments to your audio system. With a sensitivity of 87.2 dB at 1m/2.83V, it delivers powerful bass reproduction. The nominal impedance is 2+2 Ω, which supports compatibility with various amplifiers. The frequency response ranges from 25 Hz to 500 Hz, allowing for deep, clean bass reproduction.

How does the Nomex honeycomb cone affect the performance of the Ultimax II UMII10-22?

The thick, one-piece Nomex honeycomb cone of the Ultimax II UMII10-22, reinforced with woven, durable fiberglass, provides high stiffness and durability. This construction minimizes deformation, ensuring precise bass reproduction. The cone is crucial for converting electrical signals into acoustic vibrations, and its material choice significantly affects sound quality. The use of Nomex and fiberglass maximizes the efficiency of the Subwoofer by reducing distortion and enabling uniform vibration modes, ensuring clean and powerful bass performance.

What enclosure types are optimal for the Ultimax II UMII10-22?

The Ultimax II UMII10-22 from Dayton Audio is optimized for both sealed and vented enclosures. This versatility allows for the adjustment of bass character to your preferences and room acoustics. Sealed enclosures support precise and tight bass by keeping the rear sound wave within the enclosure. Vented enclosures, on the other hand, utilize reflex openings to achieve greater efficiency in the low-frequency range, thereby producing deeper bass. The choice of enclosure directly influences bass reproduction and allows for tailored audio experiences based on your preferences and spatial environment.

What role do the voice coils play in the Ultimax II UMII10-22?

The Ultimax II UMII10-22 features dual 2-ohm voice coils made of dual-layer copper, providing flexible wiring options. These voice coils allow for adjusting the overall impedance of the system through parallel or series connections, facilitating compatibility with various amplifiers. The choice of resistance directly influences the control of bass reproduction and enables efficient integration of the Subwoofer within different audio systems. This allows you to optimize the performance of your setup and tailor it precisely to your individual sound preferences.

How do I install the Dayton Audio Ultimax II UMII10-22 in my vehicle?

To install the Ultimax II UMII10-22 in a vehicle, note its dimensions: The outer diameter is 266 mm and the total depth is 184 mm. The cutout diameter of 236 mm and the eight mounting holes with a diameter of 6.5 mm are crucial for installation. Ensure that a mounting unit is available that fits these specifications. Since no car brand is specified, measure the available space in the car to check if the installation can be done without space issues. Adjust the enclosure choice and wiring to the existing audio setup.

What are the Thiele-Small parameters for the Ultimax II UMII10-22?

The Ultimax II UMII10-22 has the following technical parameters: A resonance frequency (Fs) of 39 Hz, mechanical quality factor (Qms) of 2.67, electrical quality factor (Qes) of 0.73, and total quality factor (Qts) of 0.57. These parameters work together to define the low-frequency performance. The moving mass (Mms) is 134 g, and the compliance of the suspension (Cms) is 0.126 mm/N. The displacement volume (Vd) is 689 cm³, and the force factor (BL) is 13.4 Tm. These values provide detailed insights into the acoustic and mechanical properties of the Subwoofer, which can be crucial for fine-tuning.

How is the diaphragm of the Ultimax II UMII10-22 constructed?

The diaphragm of the Ultimax II UMII10-22 consists of a thick, one-piece Nomex honeycomb cone reinforced with woven, durable fiberglass. This construction ensures high stiffness and durability, minimizes deformation, and supports uniform cone movement. Such a diaphragm construction is crucial for producing precise and powerful bass, as it allows for quick response and efficient sound propagation. The combination of Nomex and fiberglass also offers high resistance to external influences, keeping the performance of the Subwoofer consistent over a longer period.

Why are double stiffness spiders advantageous in the Ultimax II UMII10-22?

Double linear stiffness spiders in the Ultimax II UMII10-22 limit distortions and vibration modes, which brings direct benefits to sound quality. The spiders contribute to the structural integrity of the Subwoofer by controlling unwanted movements of the voice coil while providing stability. This design allows the Subwoofer to handle larger displacements precisely, resulting in improved bass performance, especially at higher volumes. These design features are crucial to ensuring the efficiency and functionality of the Subwoofer during continuous operation and providing a consistent audio experience.

What materials are used in the basket of the Ultimax II UMII10-22?

The basket or frame of the Ultimax II UMII10-22 is made of aluminum. This material offers an excellent combination of lightness and strength, which is essential for the structural support of the Subwoofer. The aluminum basket aids in thermal dissipation from the voice coil, playing an important role in maintaining performance, especially at high volumes and during extended playback times. Additionally, aluminum is corrosion-resistant, contributing to the product's durability by withstanding external environmental influences and remaining stable over time.

How is the maximum displacement of the Dayton Audio Ultimax II UMII10-22 designed?

The maximum displacement (Xmax) of the Dayton Audio Ultimax II UMII10-22 is 20 mm. This impressive excursion capability allows the Subwoofer to achieve wide movements of the diaphragm without physical damage or sound degradation. A high Xmax rating is crucial for enabling deep and powerful bass at high volumes. The generous movement space of the diaphragm enhances the Subwoofer's ability to reproduce low-frequency effects with high clarity and without distortion, ensuring an intense and balanced sound experience.

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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