PreSonus ULT18
Active Sound--Reinforcement Subwoofer

OUR PART #  ULT18


Designed to complement any full-range PA loudspeaker and a 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 Kevlar® 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.

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.

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.

With 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.

PreSonus ULT18 Features:

  • Low-end punch you can hear and feel
  • Extensive controls enable customized performance
  • Equally at home in mobile and installed systems
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