PreSonus AIR18s – 18-Inch Active Subwoofer for Precise Low-End Reinforcement

The PreSonus AIR18s delivers authoritative, clear low-frequency punch in a surprisingly transportable package. With its potent Class D amplifier, flexible DSP presets, and touring-grade enclosure, it's built to adapt seamlessly to live performances, installs, and ground-stacked PA setups.

Key Features

• 18-inch low-frequency driver with 3-inch voice coil: Ensures deep, punchy bass reproduction down to 30 Hz with low distortion.
• 1,200 W peak (600 W RMS) Class D amplifier: Delivers robust low-end output with up to 129 dB SPL.
• DSP performance presets: Choose between Normal, Mo’ Bass (extended low-end), and Locate modes for optimal usage—including Cardioid and Endfire array configurations.
• Variable low-pass filter and alignment delay: Precisely set crossover point and align timing with full-range speakers; includes polarity inversion.
• Rugged, road-ready build: Tour-grade birch plywood enclosure, ergonomic handles, caster kit included, ground-stack provisions, and defeatable front-panel LED.
• Wide I/O flexibility: Two combo XLR/¼″ inputs and two XLR through-outputs support multiple configurations and chaining.

Customer Benefits

Whether you're performing live, installing fixed sound, or creating subwoofer arrays, the AIR18s adapts quickly to your needs. DSP presets and alignment tools ensure smooth integration, while the compact yet durable design simplifies setup and transport—so you can focus on delivering great sound.

Quick Specs

• Driver: 18″ LF transducer with 3″ voice coil
• Amplifier: 1,200 W peak / 600 W continuous, Class D
• Frequency range: 30–150 Hz (-3 dB)
• Maximum SPL: ~129 dB
• DSP modes: Normal, Mo’ Bass, Cardioid, Endfire
• Filter & alignment: Variable low-pass, alignment delay, polarity invert
• Inputs/Outputs: 2 × combo XLR/¼″, 2 × XLR thru
• Enclosure: 15 mm birch plywood, tour-grade grille
• Dimensions: 66.2 cm × 49 cm × 65.6 cm
• Weight: ~38 kg

What’s in the Box

• PreSonus AIR18s powered subwoofer
• Caster wheel kit
• IEC power cable

Use Cases / Ideal For

Perfect for live sound reinforcement, mobile DJs, and immersive installation systems. Ideal when you need deep, controllable bass or want to build cardioid sub arrays to minimise stage bleed and maximize audience impact.

Compatibility

Designed to integrate seamlessly with other AIR-series speakers or any full-range loudspeakers. Adjustable filters, delay, and phase control simplify integration into 2.1 or multi-way sound systems.

Pros & Cons

✅ Pros:

• Powerful, clear low-end from a compact, road-friendly design
• DSP presets streamline array configuration and boosting bass performance
• Flexible tuning options ensure tight integration with full-range systems
• Durable enclosure and included caster kit make transport easy

⚠️ Cons:

• Heavy at ~38 kg—may require assistance for setup and stacking
• No onboard input trimming—external mixer level control may be needed

The PreSonus AIR18s grants powerful, tunable bass control with touring reliability and installation versatility—great for professionals who demand clarity and performance in every setting.