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  5. Ultimax II UMII15-22
Dayton Audio Ultimax II UMII15-22 15" (38cm) Subwoofer
SKU:  ULTIMAX-II-UMII15-22
EAN:  0848791010248

1 Review

800 Watt

Ultimax II UMII15-22

SKU:  ULTIMAX-II-UMII15-22
EAN:  0848791010248

1 Review

Technical Highlights

  • 800 Watts RMS power, 1,600 Watts peak power, 2+2 Ohm.
  • Sensitivity 89.1 dB, frequency response 20–500 Hz, 63.5 mm coil diameter.
  • Max. excursion 19 mm, cone area 814.6 cm², 101.9 liters Vas.
  • More technical details
€379,00
€379,00 €379,00
5% discount with credit card
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Delivery
Jun 5, - Jun 8,
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Ultimax II UMII15-22 by Dayton Audio Description

The Ultimax II UMII15-22 is a 15-inch (38 cm) Subwoofer from Dayton Audio featuring a thick, one-piece Nomex honeycomb cone reinforced with high-performance fiberglass. It is equipped with two 2-Ohm copper voice coils with 2 layers, two linear stiffness spiders, a large vented pole piece, and venting under the spider. The RMS power is 800 watts, with a peak power of 1,600 watts. Technical specifications include a sensitivity of 89.1 dB (2.83 V/1 m), a frequency response of 20–500 Hz, and a maximum excursion of 19 mm. The voice coil diameter is 63.5 mm, the impedance is 2 + 2 Ohm, and the equivalent volume is 101.9 liters. The outer diameter, total depth, and cutout diameter are 388 mm, 226 mm, and 350 mm; it is designed with 8 mounting holes with a diameter of 6 mm.

Features
  • 15-inch (38 cm) Subwoofer
  • Thick, one-piece honeycomb Nomex diaphragm with woven high-performance fiberglass
  • Two linear stiffness spiders
  • Two 2-Ohm copper voice coils with 2 layers
  • Large vented pole piece and venting under the spider
  • 800 watts RMS power
  • 1,600 watts peak power
  • Series: Ultimax II DVC
Technical Specifications
  • Nominal diameter: 381 mm
  • Power handling (RMS): 800 watts
  • Peak power: 1,600 watts
  • Impedance: 2 + 2 Ohm
  • Sensitivity (2.83 V/1 m): 89.1 dB
  • Frequency response: 20–500 Hz
  • Voice coil diameter: 63.5 mm
  • DC resistance (Re): 3.7 Ohm
  • Voice coil inductance (Le): 0.8 mH
  • Resonant frequency (Fs): 28.4 Hz
  • Mechanical quality (Qms): 2.80
  • Electrical quality (Qes): 0.95
  • Total quality (Qts): 0.71
  • Moving mass (Mms): 287 g
  • Suspension compliance (Cms): 0.11 mm/N
  • Diaphragm area (Sd): 814.6 cm²
  • Displacement volume (Vd): 1.548 cm³
  • Force factor (BL): 14.1 Tm
  • Equivalent volume (Vas): 101.9 liters
  • Maximum excursion (Xmax): 19 mm
  • Outer diameter: 388 mm
  • Total depth: 226 mm
  • Cutout diameter: 350 mm
  • Mounting holes: 8
  • Mounting hole diameter: 6 mm
  • Woofer type: Subwoofer
  • Woofer series: Ultimax II DVC

Frequently Asked Questions about Ultimax II UMII15-22

What power does the Ultimax II UMII15-22 Subwoofer from Dayton Audio offer?

The Ultimax II UMII15-22 from Dayton Audio delivers an impressive power of 800 Watts RMS and reaches a peak power of 1600 Watts. This high power capacity allows the subwoofer to produce deep bass with minimal distortion. Especially with bass-heavy tracks, where a high sound depth is often required, the UMII15-22 shows its strengths. Thanks to its dual 2-ohm voice coils, this speaker offers a flexible wiring configuration that efficiently supports large audio systems.

What is the frequency response of the Dayton Audio Ultimax II UMII15-22 and what does it mean for sound?

The frequency response of the Ultimax II UMII15-22 ranges from 20 to 500 Hz. This range allows the subwoofer to reproduce both deep bass frequencies and somewhat higher frequencies with precision and clarity. The extension up to 500 Hz is particularly useful in home theater setups, where seamless integration with main speakers is required. For discerning listeners, this means that the subwoofer is capable of conveying both subtle bass nuances and powerful audio events emphatically.

What materials were used for the diaphragm cone of the Ultimax II UMII15-22?

The Ultimax II UMII15-22 is equipped with a thick, one-piece Nomex honeycomb cone that has been reinforced with high-performance fiberglass. This combination of materials ensures outstanding stiffness and minimizes distortion at high volumes. The Nomex honeycomb construction provides a structured surface that effectively controls resonances and self-movements. Especially at extreme volumes, where conventional cone materials might fail, this construction ensures that the subwoofer reproduces deep tones cleanly and precisely.

How is the design of the voice coil of the Dayton Audio Ultimax II UMII15-22?

The Ultimax II UMII15-22 features dual 2-ohm copper voice coils wound in two layers. This construction ensures increased thermal capacity and offers a flexible wiring configuration. You can easily implement the Subwoofer in various audio installations. The voice coils with a diameter of 63.5 mm guarantee not only precise reproduction but also contribute to effective heat dissipation management, which is crucial during intense musical passages.

What advantages do the ventilation features of the Ultimax II UMII15-22 Subwoofer offer?

The ventilation of the Ultimax II UMII15-22 includes a large vented pole piece and additional ventilation under the spider. This design optimizes heat management by efficiently dissipating the heat generated during intense use. Effective temperature control is essential to avoid performance losses and maintain sound quality. Especially when you use the Subwoofer in sealed or vented enclosures, the lifespan of the component is significantly extended by these ventilation features.

What enclosure options are available for the Dayton Audio Ultimax II UMII15-22?

The Ultimax II UMII15-22 can be used in both sealed and vented enclosures. Sealed enclosures provide precise and tight bass reproduction and are ideal for music lovers who value detail. Vented enclosures, on the other hand, allow for deeper and more powerful bass output, suitable for home theater applications where the Subwoofer needs to fill large spaces. When designing these enclosures, the diaphragm area of 814.6 cm² and the outer diameter of 388 mm should definitely be considered.

What is the sensitivity of the Ultimax II UMII15-22 Subwoofer and why is it important?

The sensitivity of the Ultimax II UMII15-22 is 89.1 dB at 1 m with a voltage of 2.83 V. This figure describes how effectively the Subwoofer converts acoustic energy into sound pressure. Higher sensitivity values mean that less input power is required to achieve a certain volume level, which is significant in energy-efficient audio setups. For installations where amplifier power is limited, the UMII15-22 offers the ability to still achieve deep and powerful bass performance due to its sensitivity.

What are the dimensions of the Ultimax II UMII15-22 and how does this affect installation compatibility?

The Ultimax II UMII15-22 has an outer diameter of 388 mm and a total depth of 226 mm. These measurements play a crucial role in integrating into custom enclosures or existing audio setups. The cutout diameter of 350 mm is particularly important to ensure a precise installation. If you want to customize a vehicle or home theater system, you should consider the 8 mounting holes with a diameter of 6 mm. These specifications ensure that the Subwoofer is mounted securely and stably.

What application areas is the Dayton Audio Ultimax II UMII15-22 suitable for?

The Ultimax II UMII15-22 is versatile, suitable for both car audio applications and home theater systems. With its powerful technical specifications, such as the Ultimax II DVC Subwoofer series and a power handling of 800 watts, it provides an impressive sound experience in both environments. When used in cars, the Subwoofer can fill the interior with deep bass, while in home theater systems, it delivers intense movie and music enjoyment. Its adaptability in sealed or vented enclosures further expands its application possibilities.

Explain the Thiele-Small parameters of the Dayton Audio Ultimax II UMII15-22 Subwoofer.

The Thiele-Small parameters of the Ultimax II UMII15-22 include a resonance frequency (Fs) of 28.4 Hz, a total Q factor (Qts) of 0.71, and an equivalent volume (Vas) of 101.9 liters. The force factor (BL) is 14.1 Tm. These technical specifications are crucial in determining the optimal enclosure design. With a high mechanical Q (Qms) of 2.80 and an electrical Q (Qes) of 0.95, this Subwoofer demonstrates a well-balanced performance. This parameterization allows you to make informed decisions to maximize the acoustic precision of your speaker system.

Manufacturer information / responsible person

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


Contact: info@audio-components.com