Dayton Audio Ultimax UM18-22
18" (46cm) subwoofer
/piece
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Description
The Ultimax UM18-22 is an impressive 18" subwoofer presented by Dayton Audio. Part of Dayton Audio's renowned Ultimax series, this high performance subwoofer offers exceptional features such as immense excursion limits and dual voice coils. With the ability to move massive amounts of air, the UM18-22 is often referred to as an audio bulldozer with the finesse of a sports car. With an impressive RMS power handling of 1000 watts and up to 50 millimeters of excursion from peak to peak, this subwoofer offers unmatched audio performance. Discover the benefits of dual spiders for stable excursion and air cooling through pole piece and vents under the spider. Immerse yourself in the world of deeper and more precise bass with the Ultimax UM18-22.
Highlights
- 18" woofer
- Over 50 millimeters deflection from tip to tip
- RMS load capacity of 1000 watts
- Double spiders, for stable deflections
- Dual voice coils, for extended connection options
- Air cooling through pole core and ventilation slots under the spider
Housing recommendations
- The electro-acoustic parameters support a wide range of enclosure designs. Placing the UM18 in a compact 113-liter enclosure results in excellent closed-box performance with an F3 around 28 Hz.
- In larger vented enclosures, the UM18-22 is even capable of reproducing infrasonic frequencies; a 350-liter vented enclosure tuned to 15 Hz provides an F3 around 14 Hz. A 180-liter enclosure tuned to 20 Hz still offers an F3 of 18 Hz and is perfect for demanding low bass applications.
Data
- Woofer series : Ultimax Series
- Nominal diameter : 18"
- Power handling (RMS) : 1,000 watts
- Load capacity (max) : 2,000 watts
- Impedance (Z) : 2 + 2 Ohm dual voice coil
- Sensitivity : 88.6 dB @ 2.83V/1m
- Voice coil diameter : 75 mm
- DC resistance (Re) : 4.4 Ohm
- Voice coil inductance (Le) : 2.22 mH @ 1 kHz
- Resonant frequency (Fs) : 19.5 Hz
- Mechanical quality (Qms) : 3.82
- Electrical quality (Qes) : 0.62
- Overall quality (Qts) : 0.53
- Movable mass (Mms) : 655g
- Compliance of the suspension (Cms) : 0.1 mm/N
- Diaphragm area (Sd) : 1.219 cm²
- Displacement volume (Vd) : 2,681.8 cm³
- Force factor (BL) : 23.8 Tm
- Equivalent volume (Vas) : 212 liters
- Maximum deflection (Xmax) : 22 mm
- Membrane material : Nomex membrane
- Bead material : Rubber
- Basket / frame material : Cast aluminum
- Magnet material : Ferrite
- Outer diameter : 47cm
- Total depth : 22,8cm
- Cut-out diameter : 43,2cm
- Mounting holes : 8
Download data sheet
