AD Delta SUB-18A Professional Active 18-Inch Subwoofer

Feel Every Beat. Experience Powerful, Deep Bass.

The AD Delta SUB-18A is a professional 18-inch powered subwoofer engineered to deliver massive low-frequency performance for demanding live sound applications. Featuring a high-output Class-D digital amplifier, advanced DSP processing, and a premium 18-inch long-excursion transducer, the SUB-18A produces deep, punchy bass with exceptional clarity and impressive headroom.

Designed for concerts, churches, hotels, touring systems, DJs, rental companies, and permanent installations, the Delta SUB-18A provides the solid low-end foundation every professional sound system requires.

Built inside a rugged premium plywood cabinet with a durable scratch-resistant polyurea coating, it is ready to withstand years of heavy-duty professional use while maintaining outstanding acoustic performance.

Powerful Class-D Amplification

At the heart of the AD Delta SUB-18A is a new-generation Class-D digital amplifier, delivering outstanding efficiency, fast transient response, and powerful bass reproduction while minimizing heat and power consumption.

With up to 1600 Watts RMS and 2000 Watts Peak Power, the amplifier provides enormous headroom, allowing the subwoofer to deliver tight, controlled bass even during demanding performances.

Benefits include:

• High efficiency digital amplifier
• Fast transient response
• Low distortion
• Excellent thermal performance
• Stable operation for extended use

Professional DSP Processing

The Delta SUB-18A features a built-in high-precision DSP processor designed to optimize low-frequency performance while protecting the system.

Features include:

• Professional Digital Signal Processing
• Selectable crossover frequencies
• Mono or Stereo operation
• Phase inversion switch
• Soft limiter protection
• Low-noise signal processing
• Optimized bass response for different applications

Selectable crossover presets include:

• 35Hz
• 80Hz
• 100Hz
• 120Hz
• 150Hz

These DSP presets allow easy integration with a wide variety of full-range speaker systems.

Massive Low-End Performance

Equipped with a professional 18-inch woofer featuring a 4-inch voice coil, the Delta SUB-18A delivers exceptional low-frequency extension with incredible punch and accuracy.

Performance highlights:

• Deep, powerful bass
• Fast transient response
• Tight low-frequency control
• High output capability
• Minimal distortion even at high SPL

With a maximum sound pressure level of 133dB, the SUB-18A easily fills large venues with clean, impactful bass.

Flexible Connectivity

Professional connectivity makes system integration simple.

Features include:

• 2 × Balanced XLR Inputs
• 2 × Balanced XLR Outputs
• Mono or Stereo operation
• Phase Reverse switch
• Adjustable Level Control

Perfect for connecting with powered speakers, mixers, processors, or complete PA systems.

Heavy-Duty Professional Cabinet

The AD Delta SUB-18A is built to survive the toughest touring environments.

Construction includes:

• Premium plywood enclosure
• Heavy-duty internal bracing
• Scratch-resistant black polyurea coating
• Powder-coated steel grille
• Acoustically transparent protective foam
• Dual ergonomic side handles
• M20 threaded pole mount
• Stackable cabinet design

The reinforced enclosure minimizes cabinet resonance while maximizing low-frequency efficiency.

Key Features

• Professional 18" Active Subwoofer
• High-Efficiency Class-D Amplifier
• Up to 1600W RMS
• 2000W Peak Power
• Built-in Professional DSP Processor
• Maximum SPL: 133dB
• Professional 18" Woofer with 4" Voice Coil
• DSP Low-Pass Presets (35Hz / 80Hz / 100Hz / 120Hz / 150Hz)
• Mono & Stereo Input Modes
• Phase Invert Switch
• Dual XLR Inputs
• Dual XLR Outputs
• Heavy-Duty Plywood Cabinet
• Scratch-Resistant Polyurea Finish
• Powder-Coated Steel Grille
• M20 Pole Mount
• Ergonomic Carry Handles
• Touring-Grade Construction

Ideal Applications

• Live Concerts
• Churches & Worship Centers
• Hotels & Ballrooms
• Touring Systems
• Rental Companies
• DJs & Mobile Entertainment
• Corporate Events
• Nightclubs
• Bars
• Theaters
• Outdoor Events
• Professional PA Systems

Technical Specifications

Why Choose the AD Delta SUB-18A?

The AD Delta SUB-18A is engineered for professionals who demand uncompromising low-frequency performance. Combining a powerful Class-D amplifier, intelligent DSP processing, premium plywood construction, and a high-output 18-inch transducer, it delivers deep, controlled bass with outstanding reliability. Whether you're building a church sound system, a concert rig, or a professional DJ setup, the Delta SUB-18A provides the power, durability, and performance needed to elevate every event.

Tags: AD Delta SUB-18A, SUB18A, 18 inch active subwoofer, powered subwoofer, professional bass speaker, DSP subwoofer, Class D amplifier, live sound, church sound, concert sound, DJ equipment, rental sound, PA system, Acoustic Drive, professional audio