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  5. Ultimax II UMII12-22

Ultimax II UMII12-22

1 review

600 Watt

Ultimax II UMII12-22

1 review

Technical Highlights

  • Power 600 watts RMS, peak power 1,200 watts, 2x2 ohms.
  • Voice coil 76 mm, copper, aluminum basket, 22 mm excursion.
  • Frequency response 22–400 Hz, sensitivity 88.6 dB, Vas 53 liters.
  • More technical details
€290.95
€299.00 €290.95
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ProductUltimax II UMII12-22

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Dayton Audio-Ultimax II UMII12-22-12" (30cm) Subwoofer-masori-kaufen
€290.95
€299.00 €290.95

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Compatible with Ultimax II UMII12-22

The Dayton Audio Ultimax II UMII12-22 is a 12-inch (30 cm) Subwoofer with two 2-ohm voice coils. A one-piece Nomex honeycomb diaphragm with woven fiberglass reinforcement and two linear spiders form the drive unit. The voice coil with a diameter of 76 mm is made of dual-layer copper. The nominal power handling is 600 watts RMS, with a peak power of 1,200 watts. The maximum linear excursion is 22 mm. The basket is made of aluminum. The outer diameter is 321 mm, the total depth is 202 mm, and the cutout diameter is 285 mm. The frequency response is specified at 22–400 Hz, with a sensitivity of 88.6 dB (1 m/2.83 V).

Features
  • 12-inch (30 cm) Subwoofer
  • Two 2-ohm voice coils made of dual-layer copper
  • One-piece Nomex honeycomb diaphragm with woven fiberglass reinforcement
  • Two linear spiders
  • Voice coil diameter 76 mm
  • Maximum linear excursion 22 mm
  • RMS power 600 watts
  • Peak power 1,200 watts
  • Aluminum basket
  • Outer diameter 321 mm
  • Total depth 202 mm
  • Cutout diameter 285 mm
  • Mounting holes 8
  • Diameter of mounting hole 6.4 mm
Technical Specifications
  • Series: Ultimax II DVC
  • Nominal diameter: 305 mm
  • Impedance (Z): 2 + 2 Ω
  • Sensitivity (SPL at 1 m / 2.83 V): 88.6 dB
  • Frequency response: 22–400 Hz
  • DC resistance (Re): 4.2 Ω
  • Voice coil inductance (Le): 0.66 mH
  • Resonance frequency (Fs): 31 Hz
  • Mechanical quality factor (Qms): 2.75
  • Electrical quality factor (Qes): 0.71
  • Total quality factor (Qts): 0.56
  • Moving mass (Mms): 189 g
  • Suspension compliance (Cms): 0.133 mm/N
  • Diaphragm area (Sd): 528 cm²
  • Displacement volume (Vd): 1162 cm³
  • Force factor (BL): 14.8 Tm
  • Equivalent volume (Vas): 53 liters
  • Power handling (QMW): 800 watts

Immediately available 12" (30cm) Subwoofer

    Frequently Asked Questions about Ultimax II UMII12-22

    What is the maximum power of the Dayton Audio Ultimax II UMII12-22 Subwoofer?

    The Dayton Audio Ultimax II UMII12-22 Subwoofer has an impressive peak power of 1,200 watts. The nominal power handling is 600 watts RMS, ensuring consistent and reliable performance. This makes the subwoofer ideal for applications that require high output levels without any loss of power. The dual-layer copper voice coil with a diameter of 76 mm ensures optimal heat dissipation and minimizes distortion at high power levels. This also guarantees long-term reliability, especially for demanding audio applications such as home theaters or professional sound installations.

    What frequencies can the Dayton Audio Ultimax II UMII12-22 Subwoofer reproduce?

    The frequency response of the Dayton Audio Ultimax II UMII12-22 Subwoofer ranges from 22 to 400 Hz. This bandwidth allows the subwoofer to reproduce deep bass with remarkable clarity and precision. Especially if you enjoy listening to music at high volumes, the extended frequency response provides detailed low-frequency sounds that enhance the listening experience. The deep lower cutoff frequency of 22 Hz ensures that even the subtlest low-end details remain perceptible. The upper cutoff frequency of 400 Hz ensures seamless integration with midrange and tweeters in a multi-way system.

    What are the dimensions of the Dayton Audio Ultimax II UMII12-22 Subwoofer?

    The Dayton Audio Ultimax II UMII12-22 has specific dimensions that are crucial for installation in various enclosures. With an outer diameter of 321 mm, the subwoofer fits into many standard subwoofer enclosures. The cutout diameter is 285 mm, which is important for enclosure planning. The total depth is specified at 202 mm, which should be considered for installation in tight spaces. Additionally, there are 8 mounting holes with a diameter of 6.4 mm, ensuring secure mounting and even distribution of forces.

    What materials are used for the diaphragm and basket of the Dayton Audio Ultimax II UMII12-22?

    The Dayton Audio Ultimax II UMII12-22 Subwoofer uses a one-piece Nomex honeycomb diaphragm reinforced with woven fiberglass. This combination of materials provides high stiffness while maintaining low weight, resulting in precise and distortion-free bass reproduction. The basket is made of aluminum, chosen for its strength and lightness. Aluminum ensures a robust anchor structure without unnecessarily increasing the overall mass. The choice of these materials reflects the commitment to achieving maximum performance with minimal distortion.

    How is the impedance of the Dayton Audio Ultimax II UMII12-22 configured?

    The Dayton Audio Ultimax II UMII12-22 Subwoofer is equipped with two 2-Ohm voice coils. This configuration allows for flexible wiring options to meet different impedance requirements. You can connect the voice coils in parallel to achieve a total impedance of 1 Ohm, or in series to reach a 4-Ohm configuration. Such flexibility is particularly beneficial when you want to combine the subwoofer with different amplifiers to achieve optimal output performance and efficiency.

    What is the maximum linear excursion of the Dayton Audio Ultimax II UMII12-22?

    The maximum linear excursion of the Dayton Audio Ultimax II UMII12-22 Subwoofer is 22 mm. This excursion allows the diaphragm to move significant amounts of air, thereby generating deep bass waves with high energy density. Especially in home theater applications, where powerful bass is important, the high Xmax value shows its strength. The design with two linear spiders and the robust aluminum basket supports this excursion to maintain long-term reliability and sound fidelity. Such features are crucial for a solid bass foundation.

    What are the Thiele Small parameters of the Dayton Audio Ultimax II UMII12-22 Subwoofer?

    The Dayton Audio Ultimax II UMII12-22 Subwoofer offers a comprehensive range of Thiele Small parameters. The resonance frequency (Fs) is 31 Hz, contributing to a deep bass foundation. The mechanical quality (Qms) is 2.75, while the electrical quality (Qes) is 0.71, resulting in a total quality (Qts) of 0.56. These parameters significantly influence the behavior of the subwoofer in various enclosure types. Additionally, the subwoofer has a moving mass (Mms) of 189 g and a suspension compliance (Cms) of 0.133 mm/N, which is useful for fine-tuning in custom audio setups.

    Is the Dayton Audio Ultimax II UMII12-22 Subwoofer suitable for a cabinet of 53 liters?

    Yes, the Dayton Audio Ultimax II UMII12-22 Subwoofer is ideal for a cabinet with a volume of 53 liters, which corresponds to the equivalent volume Vas. This cabinet size allows the subwoofer to resonate optimally and effectively amplify low frequencies. When constructing the cabinet, it is important to ensure that the internal dimensions are precisely matched to the cutout diameter of 285 mm. Proper sealing and stable mounting with the 8 mounting holes ensure accurate and powerful bass reproduction. These specifications are particularly important for a sealed or vented enclosure.

    What types of amplifiers are compatible with the Dayton Audio Ultimax II UMII12-22?

    For optimal performance, the Dayton Audio Ultimax II UMII12-22 can be paired with amplifiers capable of driving either 1 Ohm or 4 Ohm loads. Thanks to its dual 2 Ohm voice coils, the subwoofer is versatile in configuration. If you have an amplifier that can work with low resistance, you wire the coils in parallel for 1 Ohm. For amplifiers that support 4 Ohm, a series wiring of the coils is ideal. The rated power handling of 600 watts RMS should not be exceeded to avoid distortion or damage.

    What is the displacement volume and diaphragm area of the Dayton Audio Ultimax II UMII12-22?

    The Dayton Audio Ultimax II UMII12-22 Subwoofer has a diaphragm area (Sd) of 528 cm², allowing it to move large amounts of air and thus generate powerful bass impulses. The displacement volume (Vd) is 1162 cm³, which is essential for dynamic and impactful bass reproduction. In music with a high bass content, the quick movement behavior of the diaphragm plays a significant role in generating precise sound waves. These values give it the ability to effectively cover deep frequencies in large spaces or demanding applications, providing an intense acoustic 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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