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1200 Watt RMS
Dayton Audio-Ultimax II UMII18-22-18" (46cm) Subwoofer-masori-buy
Dayton Audio-Ultimax II UMII18-22-18" (46cm) Subwoofer-masori-buy
Dayton Audio-Ultimax II UMII18-22-18" (46cm) Subwoofer-masori-buy
Dayton Audio-Ultimax II UMII18-22-18" (46cm) Subwoofer-masori-buy
Dayton Audio-Ultimax II UMII18-22-18" (46cm) Subwoofer-masori-buy
Dayton Audio-Ultimax II UMII18-22-18" (46cm) Subwoofer-masori-buy
Dayton Audio-Ultimax II UMII18-22-18" (46cm) Subwoofer-masori-buy
Dayton Audio-Ultimax II UMII18-22-18" (46cm) Subwoofer-masori-buy
Dayton Audio-Ultimax II UMII18-22-18" (46cm) Subwoofer-masori-buy

Dayton Audio Ultimax II UMII18-22

18" (46cm) subwoofer

  • 1,000 watts RMS, 2,000 watts peak power, impedance of 2+2 Ω
  • -18" diaphragm, Nomex honeycomb composite, glass fiber reinforcement
  • -Resonance frequency at 22 Hz, diaphragm area 1.184 cm²
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The Ultimax II UMII18-22 from Dayton Audio is a powerful 18" (46cm) subwoofer that delivers impressive bass performance. With a power handling capacity of 1,000 watts RMS and a peak power of 2,000 watts, it brings powerful bass to home theater and car audio applications. Its 18-inch cone is made of a Nomex honeycomb composite material, reinforced with glass fiber fabric, which provides additional rigidity. Flexibility in connection options is provided by the two 2-ohm voice coils, which can be used for either stereo 2-ohm or mono 1-ohm configurations. The UMII18-22 features a large rubber surround and dual 8-inch mirror spiders that provide over 2 inches of linear excursion and minimize distortion. This subwoofer is optimized for a variety of enclosures, both sealed and vented, to deliver deep and powerful bass.

Features

  • 18" design for enormous air movement
  • Over 2" total cone excursion for massive bass performance
  • 1,000 watts of RMS power and 2,000 watts of peak power
  • Two 2-ohm copper voice coils with 2 layers for flexible cabling configurations

Technical data

  • Woofer series: Ultimax II DVC
  • Woofer type: Subwoofer
  • Nominal diameter: 18"
  • Load capacity (QMW): 1,200 watts
  • Impedance: 2 + 2 Ω
  • Sensitivity (SPL at 1m / 2.83V): 90.7 dB
  • Frequency response: 20 - 500 Hz
  • Voice coil diameter: 76 mm
  • Direct current resistance (Re): 4.2 Ω
  • Voice coil induction (Le): 1.15 mH
  • Resonant frequency (Fs): 22 Hz
  • Mechanical quality (Qms): 2.53
  • Electrical quality (Qes): 0.67
  • Overall quality (Qts): 0.53
  • Movable mass (Mms): 420g
  • Diaphragm area (Sd): 1184 cm²
  • Displacement volume (Vd): 3315 cm³
  • Force factor (BL): 19.2 Tm
  • Equivalent volume (Vas): 248.2 liters
  • Maximum deflection (Xmax): 28 mm
  • Basket / frame material: aluminum
  • Outer diameter: 470 mm
  • Total depth: 258 mm
  • Cut-out diameter: 426 mm
  • Mounting holes: 8
  • Fixing hole diameter: 6.5 mm

Frequently asked questions about the Ultimax II UMII18-22

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

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Rob

The Ultimax II UMII18-22 from Dayton Audio offers two 2-ohm voice coils that allow for versatile connection options. You can use the subwoofer in a stereo 2-ohm configuration, which is ideal for low impedance applications and ensures equal power distribution to both channels. Alternatively, mono 1-ohm cabling is possible, which utilizes the entire output with powerful power amplifiers. This flexibility makes the UMII18-22 ideal for a wide variety of home theater and car audio setups with special amplifier requirements. High-end audio systems in particular offer the opportunity to test different configurations in order to achieve the optimum sound.

What are the performance features of the Dayton Audio Ultimax II UMII18-22 subwoofer?

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Rob

The Ultimax II UMII18-22 has impressive performance data. Its RMS load capacity is 1,000 watts, while the peak output reaches 2,000 watts. These high power levels enable the reproduction of powerful bass that is impressive even in large rooms. The sensitivity is 90.7 dB at 1m, covering a frequency response of 20 to 500 Hz. The superbly tuned parameters of this subwoofer allow it to function optimally in both closed enclosures and ventilated constructions, 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?

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Rob

Dayton Audio relies on high-quality materials for the Ultimax II UMII18-22. The cone is made of Nomex honeycomb composite, reinforced with glass fiber fabric, which ensures maximum rigidity and durability. This material helps to minimize distortion even at high excursion. A large rubber surround effectively supports the cone, while the frame is constructed from robust aluminum. These materials combine durability with excellent sound quality, ideal for intensive home or car audio applications. It is this choice of materials that ensures consistent performance even under the extreme conditions required in demanding audio setups.

For which housing types is the Ultimax II UMII18-22 suitable?

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Rob

The Ultimax II UMII18-22 from Dayton Audio is designed for both sealed and vented enclosures. This optimization means that different audio requirements can be met: In a sealed enclosure, it provides accurate bass response with excellent attenuation, ideal for precise audio performance in home theater applications. A vented enclosure allows the low frequencies to be boosted and produce stronger bass waves, making the subwoofer ideal for public or larger rooms where lower frequencies are required. The subwoofer's parameters allow for flexible adaptation to specific cabinet sizes and designs.

How does the Dayton Audio Ultimax II UMII18-22 behave in terms of excursion?

Expert Image

Rob

The Ultimax II UMII18-22 from Dayton Audio impresses with a maximum excursion (Xmax) of 28 mm, which enables particularly deep bass reproduction. The linear excursion of over 2 inches, supported by dual 8-inch mirror spiders, minimizes distortion and ensures that the subwoofer delivers consistently high sound quality even under heavy loads. These features are particularly important for applications where strong and precise bass performance is required, such as in home theaters or at music events. The high excursion capability is a particular feature of the UMII18-22 and makes it possible to experience detailed sounds at very high volumes.

What are the important technical details of the Dayton Audio Ultimax II UMII18-22?

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Rob

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 force factor of 19.2 Tm, it offers deep and powerful bass. The voice coil diameter measures 76 mm, with a resonance frequency of 22 Hz. The subwoofer has a mechanical Q factor (Qms) of 2.53 and an electrical Q factor (Qes) of 0.67. These values demonstrate the efficiency and effectiveness of the system in various applications.

How big is the Ultimax II UMII18-22 from Dayton Audio and how can it be mounted?

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Rob

The outer diameter of the Ultimax II UMII18-22 is 470 mm with an overall depth of 258 mm, which offers some flexibility in terms of placement. The subwoofer has a cut-out diameter of 426 mm and eight mounting holes with a diameter of 6.5 mm, which enable stable mounting. If you want to integrate this subwoofer into the trunk of a vehicle, you should pay close attention to the dimensions in order to find a suitable installation position. Correct installation is crucial to ensure the best possible sound reproduction and secure mounting, especially in mobile applications.

How high is the DC resistance of the Ultimax II UMII18-22 from Dayton Audio?

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Rob

The DC resistance (Re) of the Ultimax II UMII18-22 subwoofer is 4.2 ohms. This specific measurement is crucial for matching the subwoofer to different amplifier systems and significantly affects the electrical power consumption. Such a resistance level is typical for the type of voice coils in this subwoofer and ensures that power is transferred in an efficient and consistent manner. In order to achieve optimum power levels, it is important to correctly match the subwoofer to the power amplifiers by taking into account the exact resistance characteristics.

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

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Rob

The 18-inch cone of the Ultimax II UMII18-22 consists of a Nomex honeycomb composite material reinforced with glass fiber fabric. This gives the cone the necessary rigidity and ensures that it does not deform or vibrate even under extreme conditions. This robust cone helps the subwoofer to produce deep bass down to a frequency of 20 Hz without distortion. The large cone area of 1,184 cm² contributes to the enormous air movement required to produce the low-frequency sounds for which the Ultimax II UMII18-22 is renowned.

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

Expert Image

Rob

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 resonant frequency (Fs) of 22 Hz, this subwoofer can produce low frequencies precisely even with a linear excursion. This makes it ideal for applications in which low frequency reproduction plays an important role, e.g. 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 image.

Customer Reviews

Based on 1 review
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J
Julian
Ultimax ii 18“ in einem 320l Dual opposed Gehäuse betrieben mit einem Tamp e1500 Bridged

Ich habe die Treiber nun seit ein paar Tagen im Einsatz und bin höchst zufrieden. Sie spielen beeindruckend tief und erzeugen nahezu keine außerhalb der Box wahrnehmbaren Motorgeräusche – zumindest bei der Leistung, die mein Verstärker liefern kann. Durch ihre 18-Zoll-Größe bieten sie zudem mehr als genug Output.

Ich habe einen Treiber gewogen und meine Personenwaage sagt 19.1kg an.

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Manufacturer information/responsible person

Audio Components B.V.
Koen Pronk, Martijn Ouwerkerk
Peizerweg 97a
9727AJ Groningen
The Netherlands


Contact: info@audio-components.com

I still have questions. How can I contact support?

Buy Dayton Audio Ultimax II UMII18-22 18 subwoofer at a reasonable price and experience bass power

Discover the Dayton Audio Ultimax II UMII18-22 subwoofer, a true powerhouse for every car audio enthusiast. With a whopping 1,000 watts RMS, this 18-inch subwoofer delivers bombastic bass that will make your vehicle shake. The enormous peak power of 2,000 watts maximizes the potential of the Ultimax II and at the same time guarantees that it sounds clean and distortion-free even at maximum volume. Take advantage of the Masori lowest price guarantee to always get this subwoofer at the best price on masori.de and benefit from flexible connection options thanks to the dual 2-ohm voice coils.

The construction of the Nomex honeycomb membrane for optimum stability

The Ultimax II UMII18-22 from Dayton Audio features an 18-inch Nomex honeycomb composite cone reinforced with fiberglass. This construction offers unparalleled rigidity and ensures that the cone remains dimensionally stable at high sound pressure levels. This aspect is essential to minimize distortion and ensure high-precision, clear bass reproduction. A less rigid cone or a weaker material would give way under these loads and lead to unwanted distortion.

Extension through 2 inch maximum excursion for powerful basses

With a linear excursion of over 2 inches, the Ultimax II subwoofer utilizes the full potential of its 18-inch cone. The large rubber surround and dual 8-inch mirror spiders achieve an exceptionally long linear excursion, allowing massive bass waves to be produced. This excursion enables lower frequencies without massive distortion. A lower excursion would restrict the frequency response and make the bass range appear less powerful.

Two 2-ohm copper voice coils for flexible cabling options

The subwoofer is equipped with two 2-ohm voice coils that are optimally matched to different cabling configurations. Whether in stereo 2-ohm or mono 1-ohm operation, this feature offers you flexibility when installing and adapting to your existing system. A different voice coil resistance would limit the connection options and possibly impair efficiency.

Ultimax II DVC woofer series for special applications

The Dayton Audio Ultimax II UMII18-22 is part of the Ultimax II DVC series, which is known for its high power handling and efficient sound reproduction. The series stands for precise woofer modules that not only meet but exceed even the most demanding car audio applications. Subwoofers outside this series could quickly reach their limits at higher power levels and offer a less homogeneous sound.

Frequency response from 20 - 500 Hz for comprehensive soundscapes

The frequency response of the Ultimax II subwoofer covers a range of 20 - 500 Hz and allows you to hear the deepest bass tones through to mid-range frequencies. This broad spectrum ensures a clean separation in the bass range, while the transitions to higher frequencies are smooth. A narrower frequency range would cause important sound details to be lost, especially in combination with other loudspeakers.

Optimized installation in closed and ventilated enclosures

The UMII18-22 subwoofer from Dayton Audio is designed for both sealed and vented enclosures. This versatility optimizes its sound dispersion depending on the room or vehicle environment. Use in unsuitable enclosures could reduce the bass performance and prevent a balanced sound image.

Precision element DC resistance (Re) of 4.2 Ω and induction (Le) of 1.15 mH

With a DC resistance of 4.2 Ω and a voice coil inductance of 1.15 mH, the Ultimax II offers outstanding electrical stability. These technical values are decisive for the efficiency of the subwoofer, as they influence the current flow and prevent excessive heat build-up. Values outside the standard could lead to a loss of power or overloading.

Mechanical and electrical quality for harmonic tuning

The subwoofer is characterized by a mechanical Q factor of 2.53 and an electrical Q factor of 0.67. These values underline the ability to convert sound waves efficiently and keep power dissipation low. They offer a harmony between compliance and control which, in combination with the overall Q factor of 0.53, enables precise bass reproduction and higher sound pressure in the application.

Enormous membrane surface area of 1184 cm² for extensive air movement

With a huge cone area of 1184 cm², the Ultimax II subwoofer pushes massive volumes of air, creating deep, pulsating bass. A smaller cone area would generate less pressure and reduce efficiency in the lower frequency range.

Force factor (BL) of 19.2 Tm as an indicator of high drive force

A high force factor of 19.2 Tm indicates a strong driving force, which ensures precise control of the diaphragm movements. This characteristic is crucial for the evenness and clarity of the sound. A lower force factor would lead to a certain inertia of the cone and weaken the bass definition.

Comprehensive support and expert support at Masori

If you need assistance with installation or have any questions about your new Dayton Audio subwoofer, Masori offers comprehensive on-site installation in Frankfurt (Oder). In addition, the expert support FAQ & Help is available to you at any time. Stay up to date with the audio blog to find out more about current trends and innovations in the Carhifi market.