Presonus ULT18 Active Sound-Reinforcement Subwoofer
by Presonus

List Price:
FPL Price:
$300.00 (20.00%)
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Order Soon! Only 3 left in stock.
In Stock & Ready to Ship

Order Soon!
Only 3 left in stock.

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Presonus ULT18 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.

Presonus ULT18 Active Sound-Reinforcement Subwoofer
  • 18-inch custom Kevlar® 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.
  • Output Level.
  • Lowpass Filter.
  • Preset Select.
  • Polarity Invert On/Off.
  • Mono On/Off.
  • Front LED On/Off.
  • 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.

Presonus ULT18 Active Sound-Reinforcement Subwoofer
  • Configuration: Powered subwoofer, ported
  • Frequency Response (-3 dB): 45 Hz – 250 Hz
  • Maximum Peak SPL: 135 dB
  • Crossover Frequency: 90 Hz
  • LF Transducer: 1x18" Ferrite
  • Voice Coil Diameter: 4"
  • Type: Class D
  • Total Power Output: 2,000W Peak (1,000 RMS)
  • LF Power: 2 x 500W bridged (1000W total)
  • Cooling: Free air convection
  • Rated THD: <0.05% (20 Hz - 20 kHz)
  • Dynamic Range: 119 dB (A-weighted)
  • Bandwidth: 20 Hz - 20 kHz
  • Input Channels: 2 line
  • Input Connector Types: 2 combo
  • Line Input Impedance: 10 kO
  • 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
  • Presets: Extended LF
  • Polarity: Normal or Reverse
  • Bit Depth: 24-bit
  • Sample Rate: 96 kHz
  • Amplifier Protection: Over-current, DC, over/under-voltage, over-temperature, high frequency
  • Transducer Protection: limiter
  • AC Power Input: 100-230V~, 50-60 Hz
  • AC Power Consumption (1/8 Power): 150W
  • Rigging Points: 12 M10
  • Mounting: Ground stack provisions

Presonus ULT18 Active Sound-Reinforcement Subwoofer
(1) ULT18: Active Sound-Reinforcement Subwoofer
(1) User's Manual
(1) Power Cable