AIR XD Sub 18 1 x 18” Active Extended Definition Subwoofer

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Designed for both mobile & installed systems, the AIR XD Sub18 delivers up to 130dB of powerful, accurate low-end with an 18in driver, 2000W Class D amp, variable lowpass filter, & DSP presets for seamless integration & advanced array configurations.

Overview

The PreSonus AIR XD Sub 18 is a high-performance active subwoofer designed for professional use, delivering massive low-end extension and high SPL for large-scale events and installations. Its custom 18-inch low-frequency driver with enlarged voice coil provides efficient power handling and deep, punchy bass with minimal distortion, while advanced tuning options—including variable lowpass filtering, alignment delay, and cardioid/end-fire array presets—ensure precise control of low-frequency performance in any environment.

Powered by 2,000W of efficient Class D amplification, the AIR XD Sub 18 delivers clean, consistent output with exceptional headroom for demanding live sound applications. A full-color 2.6” LCD provides intuitive metering, system control, and fast access to DSP presets, EQ, and tuning modes.

Built-in Bluetooth with TWS Bridge Mode enables wireless stereo pairing with AIR XD full-range speakers, while flexible routing and direct outputs allow seamless integration into FOH or monitoring setups. Rugged wood enclosures with ergonomic handles, ground-stacking provisions, and built-in caster mounting make the AIR XD Sub 18 as portable as it is powerful, whether stacked, flown, or installed permanently.

Features

  • Custom 18-inch low-frequency driver with enlarged voice coil for extended low-end depth and maximum impact

  • 2,000W Class D amplifier delivers clean, powerful bass for demanding applications

  • Frequency Response: 47 Hz to 103 Hz (-3 dB), 33 Hz to 131 Hz (-10 dB)

  • 130 dB SPL (max)

  • Advanced DSP with variable lowpass filter, alignment delay, and cardioid/end-fire array presets

  • Integrated “Mo’ Bass” enhancement for added low-frequency punch

  • Full-color 2.6” LCD for metering, DSP control, and tuning options

  • Built-in Bluetooth with TWS Bridge Mode for wireless stereo pairing with AIR XD full-range models

  • Dual combo inputs with direct outputs for flexible routing and system integration

  • Rugged wood enclosure with ergonomic handles, ground-stacking provisions, and built-in caster mounting for portability

Highlights

Scalable Performance for Any Setup

With 10-, 12-, and 15-inch full-range models and 15- or 18-inch subs, AIR XD speakers deliver massive output and precise, detailed sound across the full frequency spectrum. Class D amplification provides high efficiency, maximum headroom, and clean power handling, making them perfect for everything from intimate gigs to large-scale events.

Precision DSP for Perfect Sound

Shape your system with intuitive DSP presets for FOH, monitoring, speech, music, or enhanced warmth. Subwoofer tuning includes crossover control, array presets, alignment delay, and more.

Flexible Connectivity Built In

Each speaker includes an onboard mixer with combo mic/line inputs, aux support, and built-in Bluetooth with TWS Bridge Mode for true wireless stereo pairing—no extra gear or cables required.

PreSonus® Six-Year Warranty

When you choose AIR XD-series loudspeakers and subwoofers, you choose confidence. Rest assured that your 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 abuse them), the repair or replacement is on us.

Specs

Electronics

  • Bluetooth

    Bluetooth® V5.0

  • Channels

    Two

  • Connectivity

    Bluetooth

  • Inputs

    Three - 2 x XLR/TRS Line Combo, Bluetooth

  • Line Out

    Two - 2 x XLR Link Out

  • Power Consumption

    5.6A (230V-50 Hz), 11.1A (120V)

  • VoltageRequirements

    100-240 VAC, 50-60 Hz

General

  • Amplifier Type
    Class-D

  • Color
    Black

  • Product Name
    AIR XD 18S Active Sound-Reinforcement Subwoofer

  • Series
    AIR

Hardware

  • Audio Controls

    Gain, Volume, Hi/Lo EQ, X-over

  • Cabinet Material

    15mm Plywood

  • Cooling

    Passive radiator

  • Grille Material

    1.5 mm Steel

  • Handle

    2 Side

  • LF Transducers

    18” (3” Voice Coil)

  • Pole Socket

    Ground-Stack Provisions

Output

  • Line Outputs Connection Type

    XLR Male, Balanced

Inputs

  • Line Input Connection Type
    XLR/TRS Mic/Line Combo

  • Line Inputs Impedance

    14K ohm

  • Line Inputs Maximum Level

    +25dBu

Measurements

  • Product Depth

    25.8" (65.6 cm)

  • Product Height

    26" (66.0 cm)

  • Product Height/Length

    26" (66.0 cm)

  • Product Weight

    88.4 lbs. (39.8 kg)

  • Product Width

    19.3" (49.0 cm)

Miscellaneous

  • DSP Features

    Low-pass EQ, crossover, delay, polarity and “Mo’Bass” mode

  • Power Cable

    IEC

  • Protections

    Output limiter

Performance

  • Peak SPL

    130 dB

  • Total Power Output

    2000 Watts

Speakers

  • Crossover Frequency

    60 Hz - 150 Hz

  • Speaker Type

    Active Vented Design

  • Total Impedance

    NA