PreSonus-ULT18 PA Subwoofer

$1,499.95 $1,249.95
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PreSonus-ULT18
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673454004551
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PreSonus-ULT18 PA Subwoofer (PreSonus-ULT18)

PreSonus-ULT18 PA Subwoofer
Sweet and Low. Active Sound-Reinforcement Subwoofer

Low-end punch you can hear and feel. Designed to complement any full-range PA loudspeaker and a perfect companion for the PreSonus® ULT12 and ULT15, the ULT18 subwoofer delivers a powerful, clear, and accurate low-end punch. With 2,000 watts (peak) of Class D power and a direct radiating, ported enclosure, it has all the muscle needed for the detailed low-frequency performance audio pros demand. Its custom 18-inch low-frequency transducer with 4-inch voice coil provides 7 mm of driver travel before over-excursion to push more air and bring more thump.

Extensive controls enable customized performance. To provide maximum versatility, the ULT18 offers several important user controls. Unlike most subwoofers in this class, the ULT18 features a variable lowpass filter that enables you to accurately dial in the crossover transition between the subwoofer and your full-range system. Two DSP presets provide extended low-frequency performance or a more natural response to suit a variety of applications, and of course you get polarity reverse. A Mono Mode function is also provided to simplify cabling multiple mono subs in a stereo system.

Equally at home in mobile and installed systems. Like the full-range ULT12 and ULT15 loudspeakers, the ULT18 has a rugged, tour-grade birch enclosure for the distinctive performance characteristics that only wood can offer. A locking IEC power connector, M10 rigging points, integrated castor provisions, and ground-stacking provisions, making it a great choice for a wide variety of mobile and install applications. Two combo XLR and ¼” TRS line-level inputs with level control and throughputs are provided to connect full-range systems or multiple subwoofers in larger systems. As with the ULT12 and ULT15, you can defeat the front power-indicator LED for low-visibility installs.

Designed by WorxAudio. ULT18 loudspeakers were designed by WorxAudio®, the commercial loudspeaker division of PreSonus. Headquartered in Greensboro, North Carolina, WorxAudio has been at the forefront of loudspeaker development for the pro touring and contractor markets for over 30 years. WorxAudio continues to embrace the latest technology, delivering innovative products and installation designs for professional clients, and their products can be found in prestigious facilities worldwide. So you can rely on ULT loudspeakers to deliver the top-quality professional performance and features that touring engineers and systems integrators need.

Now hear thisWith flexible connectivity; a rugged, tour-grade enclosure; and generous Class D power, the ULT18 delivers the versatility and punch expected from today’s professional sound systems and is an excellent solution for permanent installations. Yet it’s also portable, making it a top choice for tours and other mobile use. Although designed to complement ULT-series full-range loudspeakers, the ULT18 is also an excellent companion for third-party loudspeakers. Most important, it sounds great, delivering outstanding low-end clarity and natural music reproduction. Hear ULT-series loudspeakers for yourself at your favorite PreSonus dealer.

Six-year warranty lets you rest easy. When you choose ULT or AIR loudspeakers, you choose confidence. Rest assured that your new PreSonus speakers are in it for the long haul. We take our build quality seriously, and if anything goes wrong with them in your first six years of ownership (assuming you don't throw them in a swamp or anything like that) the repair or replacement is on us.

Features

Main Components

  • 18-inch custom woofer with 4-inch voice coil
  • 7 mm driver travel before over-excursion
  • 2,000W Class D power (2 × 500 W continuous)
  • Stereo combo XLR and ¼” inputs with direct outputs
  • Onboard fully variable lowpass filter lets you dial in upper frequency limit

Controls

  • Output Level
  • Lowpass Filter
  • Preset Select
  • Polarity Invert On/Off
  • Mono On/Off
  • Front LED On/Off

Convenience Features

  • Defeatable front-panel LED
  • Rugged, texture-painted eucalyptus plywood enclosures
  • Tour-grade 16 gauge steel grille
  • Comfortable ergonomic handles
  • Ground Stacking provisions
  • Integrated castor provisions (castor kit sold separately)
  • Locking IEC connection

Technical Specifications

Acoustic Performance  
Configuration  Powered subwoofer, ported
Frequency Response (-3 db) 42 Hz – 150 Hz (Variable)
Frequency Response (-10 db) Not Specified
Low Pass Filter Range 50 Hz - 150 Hz
Maximum Peak SPL 135 dB
Crossover Frequency 90 Hz
Transducer  
LF Transducer 1x18" Ferrite 
Voice Coil Diameter 4"
HF Transducer N / A
Amplifier  
Type Class D 
Total Power Output 2,000W Peak (1,000 RMS)
LF Power 2 x 500W bridged (1000W total) 
HF Power 300W Peak (150W RMS) 
Cooling Free air convection
Rated THD <0.05% (20 Hz - 20 kHz)

Dynamic Range 

119 dB (A-weighted)
Bandwidth  20 Hz - 20 kHz 
Connections and Controls   
Input Channels  2 line
Input Connector Types  2 combo 
Mic Input Impedance  Not Specified 
Line Input Impedance 10 kΩ 
Maximum Input +22 dBu 
Output Connector 2 XLR (M): Mix out, Direct out 
Controls Output Level - Low Pass Filter
  Preset Select - Polarity Invert On/Off
  Mono On/Off - Front LED On/Off
Indicators DSP Preset, Polarity Invert On/Off, Mono On/Off, Front LED On/Off, Signal, Clip, Thermal
DSP   
Presets Extended LF
Polarity  Normal or Reverse
HPF N/A
Bit Depth  24-bit
Sample Rate 96 kHz 
Enclosure   
Material Eucalyptus Plywood 
Finish  Chemline polyurethane
Grille Powder-coated steel 
Dimensions (H x W x D)  22.5” x 25” x 24.5” (572 mm x 635 mm x 622 mm)
Unit Weight 95 lbs. (43 kg)
Handles  2 (One on each side)
Monitor Angle Not Specified
Safety   
Amplifier Protection Over-current, DC, over/under-voltage, over-temperature, high frequency 
Transducer Protection  limiter
Power  
AC Power Input  100-230V~, 50-60 Hz
AC Power Consumption (1/8 Power) 150W 
Suspension Mounting   
Rigging Points 12 M10 
Mounting  Ground stack provisions