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Dayton Audio Ultimax II UMII18-22 18" (46cm) Subwoofer
SKU:  ULTIMAX-II-UMII18-22
EAN:  0848791010255

2 Reviews

1200 Watt

Ultimax II UMII18-22

SKU:  ULTIMAX-II-UMII18-22
EAN:  0848791010255

2 Reviews

Technical Highlights

  • 1200 watts of power, 2+2 ohm impedance, 76 mm voice coil.
  • Resonant frequency at 22 Hz, sensitivity 90.7 dB, frequency up to 500 Hz.
  • Total excursion over 50.8 mm, BL 19.2 Tm, cone area 1184 cm².
  • More technical details

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€449,00
€449,00 €449,00
inkl. VAT , possibly plus shipping
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Ultimax II UMII18-22 by Dayton Audio Description

The Dayton Audio Ultimax II UMII18-22 is an 18 inch (46 cm) Subwoofer with dual voice coils 2 + 2 Ohm. The 76 mm voice coil, a diaphragm made of Nomex honeycomb composite with fiberglass reinforcement, and an aluminum basket form the foundation. A large rubber surround and dual 203 mm spiders allow for a total excursion of over 50.8 mm with an Xmax of 28 mm. The specifications include a sensitivity of 90.7 dB (2.83 V/1 m), a resonance frequency of 22 Hz, and a frequency response of 20–500 Hz. Other parameters are a BL of 19.2 Tm, Sd of 1184 cm², Vd of 3315 cm³, and a Vas of 248.2 liters. The dimensions include an outer diameter of 470 mm, a cutout diameter of 426 mm, and a total depth of 258 mm; mounting is done via 8 holes with a diameter of 6.5 mm.

Features
  • 18 inch (46 cm) Subwoofer
  • Diaphragm made of Nomex honeycomb composite, fiberglass reinforced
  • Large rubber surround
  • Dual 203 mm spiders
  • Two 2-Ohm copper voice coils, dual-layer (DVC 2 + 2 Ohm)
  • Voice coil diameter 76 mm
  • Aluminum basket
  • Total excursion of the diaphragm over 50.8 mm
Technical Specifications
  • Series: Ultimax II DVC
  • Type: Subwoofer
  • Nominal diameter: 18 inch
  • Power handling (QMW): 1,200 Watts
  • Impedance: 2 + 2 Ohm
  • Sensitivity (2.83 V/1 m): 90.7 dB
  • Frequency response: 20–500 Hz
  • Voice coil diameter: 76 mm
  • DC resistance (Re): 4.2 Ohm
  • Voice coil inductance (Le): 1.15 mH
  • Resonance frequency (Fs): 22 Hz
  • Qms: 2.53
  • Qes: 0.67
  • Qts: 0.53
  • Moving mass (Mms): 420 g
  • Diaphragm area (Sd): 1184 cm²
  • Displacement volume (Vd): 3315 cm³
  • Force factor (BL): 19.2 Tm
  • Equivalent volume (Vas): 248.2 liters
  • Maximum excursion (Xmax): 28 mm
  • Basket/frame material: Aluminum
  • Outer diameter: 470 mm
  • Total depth: 258 mm
  • Cutout diameter: 426 mm
  • Mounting holes: 8
  • Diameter of mounting hole: 6.5 mm

18" (46cm) Subwoofer available now

    Frequently Asked Questions about Ultimax II UMII18-22

    What connection configurations does the Dayton Audio Ultimax II UMII18-22 Subwoofer offer?

    The Ultimax II UMII18-22 from Dayton Audio features two 2-ohm voice coils, allowing for versatile connection options. You can use the subwoofer in a stereo 2-ohm configuration, which is excellent for low-impedance applications and ensures equal power distribution across both channels. Alternatively, a mono 1-ohm wiring is possible, utilizing the full output with powerful amplifiers. This flexibility makes the UMII18-22 ideal for a wide range of home theater and car audio setups that have specific amplifier requirements. Especially in high-end audio systems, the opportunity to test different configurations to achieve optimal sound is advantageous.

    What performance characteristics does the Dayton Audio Ultimax II UMII18-22 Subwoofer have?

    The Ultimax II UMII18-22 boasts impressive performance specifications. Its RMS power handling is 1,000 watts, while the peak power reaches 2,000 watts. These high power levels allow for the reproduction of powerful bass that is impressive even in large spaces. The sensitivity is 90.7 dB at 1m, covering a frequency range of 20 to 500 Hz. The well-tuned parameters of this subwoofer enable it to perform optimally in both sealed enclosures and vented designs, promising versatility in application. This is particularly useful when used in systems with variable acoustic environments.

    What materials are used in the Dayton Audio Ultimax II UMII18-22?

    In the Ultimax II UMII18-22, Dayton Audio uses high-quality materials. The diaphragm is made of Nomex honeycomb composite, reinforced with fiberglass, which ensures maximum stiffness and durability. This material helps minimize distortion even at high excursions. A large rubber surround effectively supports the diaphragm, while the frame is constructed from robust aluminum. These materials combine durability with excellent sound quality, ideal for intensive applications in home or car audio. This choice of materials ensures consistent performance even under extreme conditions, as required in demanding audio setups.

    What enclosure types is the Ultimax II UMII18-22 suitable for?

    The Ultimax II UMII18-22 from Dayton Audio is designed for both sealed and vented enclosures. This optimization means that various audio requirements can be met: In a sealed enclosure, it provides precise bass reproduction with excellent Damping, ideal for accurate audio performance in home theater applications. A vented enclosure allows for the enhancement of low frequencies and the generation of stronger bass waves, making the Subwoofer ideal for public or larger spaces where deeper frequencies are needed. The parameters of the Subwoofer allow for flexible adaptation to specific enclosure sizes and designs.

    How does the Dayton Audio Ultimax II UMII18-22 perform in terms of displacement?

    The Ultimax II UMII18-22 from Dayton Audio impresses with a maximum displacement (Xmax) of 28 mm, enabling particularly deep bass reproduction. The linear displacement of over 2 inches, supported by dual 8-inch spiders, minimizes distortion and ensures that the Subwoofer delivers consistently high sound quality even under heavy load. These features are especially important for applications where strong and precise bass performance is required, such as in home theaters or music events. The high displacement capability particularly distinguishes the UMII18-22 and allows for detailed sounds to be experienced at very high volumes.

    What important technical details does the Dayton Audio Ultimax II UMII18-22 have?

    The Ultimax II UMII18-22 offers numerous detailed technical specifications: Its nominal diameter is an impressive 18 inches, with a sensitivity of 90.7 dB. With a frequency response of 20 to 500 Hz and a BL factor of 19.2 Tm, it provides deep and powerful bass. The voice coil diameter measures 76 mm, with a resonance frequency of 22 Hz. The Subwoofer has a mechanical quality (Qms) of 2.53 and an electrical quality (Qes) of 0.67. These values demonstrate the efficiency and effectiveness of the system in various applications.

    What are the dimensions of the Dayton Audio Ultimax II UMII18-22 and how can it be mounted?

    The outer diameter of the Ultimax II UMII18-22 is 470 mm with an overall depth of 258 mm, providing some flexibility in placement. The Subwoofer has a cutout diameter of 426 mm and eight mounting holes with a diameter of 6.5 mm, allowing for stable installation. Anyone looking to integrate this Subwoofer into a vehicle's trunk should pay close attention to the dimensions to find a suitable installation position. A correct installation is crucial to ensure the best possible sound reproduction and secure mounting, especially in mobile applications.

    What is the DC resistance of the Dayton Audio Ultimax II UMII18-22?

    The DC resistance (Re) of the Ultimax II UMII18-22 Subwoofer is 4.2 Ohms. This specific measurement is critical for matching the Subwoofer to various amplifier systems and significantly affects electrical power consumption. Such a resistance level is typical for the type of voice coils in this Subwoofer and ensures that power is transmitted in an efficient and consistent manner. To achieve optimal performance levels, it is important to correctly match the Subwoofer to the amplifiers by taking the exact resistance characteristics into account.

    What features does the diaphragm of the Dayton Audio Ultimax II UMII18-22 offer?

    The 18-inch diaphragm of the Ultimax II UMII18-22 is made from a Nomex honeycomb composite material reinforced with fiberglass. This gives the diaphragm the necessary stiffness and ensures that it does not deform or vibrate even under extreme conditions. This robust diaphragm helps the Subwoofer produce deep bass down to a frequency of 20 Hz without distortion. The large diaphragm area of 1,184 cm² contributes to the enormous air movement required to generate the low-frequency sounds for which the Ultimax II UMII18-22 is known.

    How powerful is the Ultimax II UMII18-22 at low frequencies?

    The Ultimax II UMII18-22 from Dayton Audio has a frequency range of 20 to 500 Hz, making it particularly suitable for reproducing deep, penetrating bass. With a resonance frequency (Fs) of 22 Hz, this Subwoofer can accurately produce low frequencies even at linear excursions. This makes it ideal for applications where low-frequency reproduction plays a significant role, such as in home theaters or high-quality car audio systems. The Subwoofer is designed to reproduce low frequencies with high efficiency and minimal distortion, resulting in a powerful and clear sound profile.

    Manufacturer information / responsible person

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


    Contact: info@audio-components.com