PreSonus AIR XD Sub 18 1 x 18-Inch Active Extended Definition Subwoofer

The PreSonus AIR XD Sub 18 is engineered to deliver earth-shaking deep bass for large-scale events, permanent installs, or touring setups that demand both power and fidelity. Featuring a custom 18-inch low-frequency driver with a 3-inch voice coil, its enclosure can produce clean, authoritative bass down to **33 Hz (-10 dB)** while staying tight and accurate at **47 Hz (-3 dB)**. Behind this massive transducer is a 2,000-watt Class-D amplifier that offers strong headroom and up to **130 dB SPL** peak output, giving you enough low-end punch to anchor any full-range PA rig.

Setup flexibility is paramount with the AIR XD Sub 18: onboard DSP features include a variable low-pass filter (from around 60 to 150 Hz), alignment delay, polarity controls, and presets for array configurations like ground-stacked or end-fire/cardioid arrangements. A full-color LCD screen puts these controls at your fingertips - fast adjustments for the room, for your tops, or for other subs are all possible without external processors. Bluetooth V5.0 with TWS Bridge Mode lets you pair it wirelessly with AIR XD full-range speakers too.

Despite its tour-grade output, the Sub 18 is built for durability and transport. The rugged 15 mm plywood enclosure with built-in provisions for ground-stacking, ergonomic side handles, and caster mounting make deployment much easier. The grille is steel and built to withstand rigors of live sound; protection features like an output limiter safeguard the system. Powering this beast is universal: 100-240 VAC, 50-60 Hz mains, with current draw varying (e.g. high under 120 V).

Key Features

• Custom 18-inch woofer with 3-inch voice coil for exceptional low-frequency extension and power handling
• 2,000 W Class-D amplifier delivering up to **130 dB SPL** for high impact in large venues
• DSP with variable low-pass filtering (60-150 Hz), alignment delay, polarity invert, and “Mo’ Bass” mode
• Presets for ground-stacked, end-fire, and cardioid array configurations for tight low-end control
• Full-color LCD screen for intuitive control, metering, and tuning on the fly
• Bluetooth V5.0 with TWS Bridge Mode for wireless pairing with full-range AIR XD models
• Rugged 15 mm plywood build, steel grille, ergonomic side handles, ground-stacking hardware, and caster mounting for portability
• Universal power supply (100-240 VAC, 50-60 Hz), output limiter for protection under heavy load

Technical Specifications

Accessories:
Included Accessories: Casters

Electronics:
Bluetooth: Bluetooth V5.0
Channels: Two
Connectivity: Bluetooth
Inputs: Three - 2 × XLR/TRS Line Combo, Bluetooth input
Line Out: Two - 2 × XLR Link Out
Power Consumption: 5.6 A (230 V-50 Hz), 11.1 A (120 V)
Voltage Requirements: 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 (crossover control)
Cabinet Material: 15 mm plywood
Cooling: Passive radiator
Grille Material: 1.5 mm Steel
Handle: Two Side Handles
LF Transducers: 18-inch (3-inch Voice Coil)
Pole Socket: Ground-Stack Provisions

Inputs:
Line Input Connection Type: XLR/TRS Mic/Line Combo
Line Inputs Impedance: 14 kΩ
Line Inputs Maximum Level: +25 dBu

Measurements:
Product Depth: 25.8 in
Product Height: 26 in
Product Height/Length: 26 in
Product Weight: 88.4 lbs
Product Width: 19.3 in

Miscellaneous:
DSP Features: Low-pass EQ, crossover, delay, polarity and “Mo’Bass” mode
Power Cable: IEC
Protections: Output limiter

Output:
Line Outputs Connection Type: XLR Male, Balanced

Performance:
Peak SPL: 130 dB
Total Power Output: 2,000 Watts

Speakers:
Crossover Frequency: 60-150 Hz
Speaker Type: Active Vented Design
Total Impedance: N/A

What’s Included

• PreSonus AIR XD Sub 18 Active 1-×-18″ Extended Definition Subwoofer
• Caster Kit
• IEC Power Cable
• User Manual
• Warranty Information