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Dayton Audio

Ultimax II UMII12-22

12" (30cm) Subwoofer

299,00€
299,00€ 299,00€
incl. VAT , possibly plus shipping

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Highlights

  • 600 watts RMS power handling, 1,200 watts peak power, 2+2 Ω impedance.
  • Two 2 ohm voice coils, voice coil diameter 76mm, 0.66mH.
  • Resonance frequency 31Hz, sensitivity 88.6dB, frequency range 22-400Hz.
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brand: Dayton Audio
Delivery time:
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Number:
Piece
Watt RMS:
600
Subwoofer Type:
ferrite
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Dayton Audio-Ultimax II UMII12-22-12" (30cm) Subwoofer-masori-kaufen
299,00€
299,00€ 299,00€

Discover the Ultimax II UMII12-22 from Dayton Audio, a 12" subwoofer specifically designed for the reproduction of deep, powerful bass. With its two 2-ohm voice coils, it offers flexible wiring options for various audio applications. The one-piece Nomex honeycomb diaphragm, along with a robust fiberglass reinforcement, provides exceptional stiffness and deformation resistance. With a power handling of 600 watts RMS and peak power of 1,200 watts, the subwoofer delivers impressive low-frequency experiences with minimal distortion. Thanks to the combination of innovative design and high-quality materials, the UMII12-22 offers versatile applications, whether in sealed or vented enclosures. The careful ventilation and advanced cooling ensure that the subwoofer consistently performs well even under intense use.

features

  • Thick, one-piece Nomex honeycomb cone with woven, durable fiberglass
  • Two linear stiffness spiders for limiting distortions and vibration modes
  • 600 Watt RMS power handling and 1,200 Watt peak power
  • Two 2-ohm voice coils made of dual-layer copper for flexible wiring configurations

Technical Data

  • Subwoofer Series: Ultimax II DVC
  • Bass speaker type: Subwoofer
  • Nominal diameter: 12"
  • Load capacity (QMW): 800 watts
  • Impedance (Z): 2 + 2 Ω
  • Sensitivity: (SPL at 1m / 2.83V) 88.6dB
  • Frequency response: 22 - 400Hz
  • Spring coil diameter: 76mm
  • Direct current resistance (Re): 4.2Ω
  • Inductance of the oscillating coil (Le): 0.66mH
  • Resonance frequency (Fs): 31Hz
  • Mechanical Quality (Qms): 2.75
  • Electrical quality (Qes): 0.71
  • Total Quality (Qts): 0.56
  • Moving mass (Mms): 189g
  • Suspension compliance (Cms): 0.133mm/N
  • Membrane area (Sd): 528cm²
  • Displacement volume (Vd): 1162cm³
  • Power factor (BL): 14.8Tm
  • Equivalent volume (Vas): 53 liters
  • Maximum deflection (Xmax): 22mm
  • Basket / Frame material: Aluminum
  • Outer diameter: 321mm
  • Total depth: 202mm
  • Cutout diameter: 285mm
  • Mounting holes: 8
  • Diameter of mounting hole: 6.4mm
The load capacity of the Dayton Audio Ultimax II UMII12-22 is 600 Watts RMS, and the peak power reaches an impressive 1,200 Watts. These values allow the subwoofer to deliver deep and powerful bass with minimal distortion, even under intense use. The dual-layer copper voice coils ensure flexibility in wiring, increasing adaptability for various audio applications. Therefore, anyone looking for high performance for low-frequency sounds will find the Ultimax II UMII12-22 to be a particularly suitable partner.
The Ultimax II UMII12-22 covers a frequency range from 22 Hz to 400 Hz. The lower limit of 22 Hz is particularly interesting for the reproduction of deep bass, which provides a fuller sound experience. The sensitivity is 88.6 dB SPL at 1 meter and 2.83 V, promising a solid volume level. The sophisticated combination of diaphragm materials also ensures the necessary stiffness to reproduce these tones accurately.
The voice coils of the Ultimax II UMII12-22 are made of dual-layer copper and are configured in a double 2-ohm setup, providing flexible wiring options. The voice coil diameter is 76 mm, contributing to the solid power output of the subwoofer. With a DC resistance of 4.2 ohms and a voice coil inductance of 0.66 mH, this design ensures excellent electrical efficiency and a high BL factor of 14.8 Tm for powerful bass reproduction.
The outer diameter of the Ultimax II UMII12-22 is 321 mm, the total depth is 202 mm, and the cutout diameter is 285 mm. The mounting holes are distributed across eight positions, with the diameter of the mounting holes being 6.4 mm. These precise dimensions are crucial when it comes to fitting the subwoofer into enclosures or installing it in vehicle environments.
The cone of the Ultimax II UMII12-22 consists of a one-piece Nomex honeycomb structure with fiberglass reinforcement. This choice of material ensures exceptional stiffness and deformation resistance. The combination of the structural integrity of the Nomex honeycomb and the durability of the fiberglass allows for precise bass reproduction even at high volumes without distortion. The diaphragm area is 528 cm², which has a significant impact on low-frequency performance.
The Ultimax II UMII12-22 is designed for use in both sealed and vented enclosures. Its adaptability to different enclosure types enhances its versatility, allowing you to tailor the subwoofer performance to the specific acoustic environment and your personal preferences. The subwoofer is maximally utilized when the enclosure size is matched to the Thiele-Small parameters, particularly Vas of 53 liters and Qts of 0.56.
The Ultimax II UMII12-22 has the following Thiele-Small parameters: resonance frequency (Fs) of 31 Hz, mechanical quality factor (Qms) of 2.75, electrical quality factor (Qes) of 0.71, and total quality factor (Qts) of 0.56. The equivalent volume (Vas) is 53 liters and the moving mass (Mms) is 189 g. These parameters are essential for tuning and cabinet design to achieve maximum bass performance.
The distortion in the Ultimax II UMII12-22 is minimized by the use of two linear stiffness spiders to limit distortions and vibration modes. This construction allows for precise reproduction of low frequencies even at a maximum stroke of 22 mm. With a combination strategy of advanced cooling and ventilation, the sound quality remains consistently high, which is particularly important for music lovers with high demands for bass quality.
The Ultimax II UMII12-22 subwoofer impresses with high flexibility in wiring due to its two 2-ohm voice coils. This facilitates adaptation to various amplifier configurations and allows for easy integration into existing audio systems. The ability to be used in both series and parallel connections enhances compatibility with many common brands and models of audio components and ensures customization to individual needs.
The Ultimax II UMII12-22 features several technical highlights, including the one-piece Nomex honeycomb diaphragm with fiberglass-reinforced structure, which provides stiffness and improved bass performance. Noteworthy are the two 2-ohm copper voice coils that promote flexibility in wiring. The subwoofer boasts a resonance frequency of 31 Hz and a maximum power of 1,200 watts. These characteristics make it ideal for use in various audiovisual applications, whether private or in vehicles.

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


Contact: info@audio-components.com

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Product Specifications

Manufacturer

Dayton Audio

Product type

12" (30cm) subwoofer

Features

  • Highlights

    • 600 watts RMS power handling, 1,200 watts peak power, 2+2 Ω impedance.
    • Two 2 ohm voice coils, voice coil diameter 76mm, 0.66mH.
    • Resonance frequency 31Hz, sensitivity 88.6dB, frequency range 22-400Hz.

  • Uvp

    299

weight

13.7 kg

Watt RMS Load Capacity

600

configurators

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Ultimax II UMII12-22 Subwoofer from Dayton Audio: Buy at Masori.de

Discover the Ultimax II UMII12-22, the revolutionary subwoofer from Dayton Audio, and benefit from our Masori Lowest Price Guarantee. With an impressive RMS power handling of 600 watts and a peak power of up to 1,200 watts, this 12-inch subwoofer is a must-have for deep bass lovers. The two 2-ohm voice coils allow for flexible wiring configurations, perfect for customized audio applications. The innovative Nomex-reinforced cone provides remarkable rigidity and effectively minimizes distortion. The interaction of these components guarantees a powerful bass experience, whether in sealed or vented enclosures, with optimal cooling and ventilation.

Nomex honeycomb membrane design and glass fiber reinforcement: robustness and precision

The one-piece Nomex honeycomb cone of Dayton Audio's Ultimax II UMII12-22 is specifically engineered for exceptional rigidity. The woven, durable fiberglass reinforcement provides high resistance to deformation. This fiber-reinforced structure maximizes sound propagation through its rigid construction and significantly reduces unwanted vibration and distortion. Compared to conventional paper cones, this design offers superior durability when used at higher volumes.

Consider the Thiele-Small parameters for maximum sound optimization

With specific Thiele-Small parameters such as a Vas of 53 liters and a resonant frequency of 31 Hz, the Ultimax II is ideally suited for both sealed and vented enclosures. The Qms of 2.75, Qes of 0.71, and Qts of 0.56 demonstrate a fine balance between mechanical damping and electrical performance, exceeding the average and facilitating adaptation to various enclosure types. A higher Qms, for example, would improve mechanical stability but could complicate enclosure adaptation requirements.

Two 2-ohm voice coils and flexible wiring configurations

The Ultimax II's dual 2-ohm coils allow for versatile electrical configurations to suit most amplifier specifications. This flexibility allows the subwoofer to be integrated into diverse circuit topologies, such as series or parallel configurations, without compromising performance. Unlike fixed 4-ohm configurations, the variable impedance provides superior control and a wide range of customization options for the user.

Impressive power handling and sensitivity for intense bass reproduction

With an RMS power handling of 600 watts and a maximum output of 1,200 watts, the Ultimax II UMII12-22 effortlessly delivers low frequencies at full volume without exceeding minimum distortion. Its sensitivity of 88.6 dB (at 1 m / 2.83 V) enables highly efficient performance in low-impedance applications, favoring high volume even at low amplifier power. A lower sensitivity may increase the need for more amplifier power to achieve comparable levels.

High-quality cooling and sophisticated ventilation for loss-free performance

The Dayton Audio subwoofer's ventilation and advanced cooling ensure continuous performance even during extended periods of operation. The design prevents heat buildup within the voice coils, which significantly contributes to efficient sound transmission. Optimized cooling also helps preserve component longevity and significantly reduces mechanical wear under high acoustic loads.

DC resistance and voice coil induction for precise control

The DC resistance of 4.2 ohms combined with the voice coil inductance of 0.66 mH provides precise control over the energy flow in the coil windings. This ensures a fine balance between voltage control and frequency distribution precision. Reduced inductance would result in reduced impedance smoothing, which could complicate targeted frequency control.

Frequency response and movement possibilities: Xmax and displacement volume

The frequency response of the Ultimax II subwoofer ranges from 22 Hz to 400 Hz, covering a wide range of low frequencies, ideal for dynamic basslines. The maximum excursion (Xmax) of 22 mm and a displacement volume (Vd) of 1162 cm³ mean the subwoofer moves large volumes of air at low frequencies with ease. A larger Xmax could increase bass impulse and dynamics at lower frequencies, enriching the sonic texture.

Installation and adjustment: mounting diameter and basket material

The Dayton Audio subwoofer features an aluminum basket and a total depth of 202 mm and an outer diameter of 321 mm. These dimensions, combined with the particularly sturdy material, ensure secure mounting and vibration reduction in the installation position. A larger cutout diameter of 285 mm ensures smooth integration into diverse audio setups, while the eight mounting holes with a hole diameter of 6.4 mm ensure a precise fit.

Support and Service: Masori offers comprehensive support

Get on -site installation support in Frankfurt (Oder) and benefit from our expert support FAQ & Help . Also, be inspired by our extensive audio blog . We provide comprehensive support for all technical questions about the Ultimax II UMII12-22 and its integration into your car hi-fi setup.