The LINEAR SUB 1800 A is a powerful active 18-inch subwoofer designed to deliver deep, punchy, and controlled low‑frequency reinforcement for professional sound systems. With a high‑efficiency Class‑D amplifier, rugged birch multiplex construction, and precise bass‑reflex tuning, it provides the solid low‑end foundation needed for live bands, DJs, rental companies, and fixed installations. Its compact footprint and robust output make it suitable for medium to large venues where reliable bass performance is essential.

Key features

Overview

The LINEAR SUB 1800 A is engineered to provide tight, authoritative bass with excellent transient response, making it suitable for modern music styles and high‑energy live performances. Its 18-inch driver delivers substantial low‑frequency output while maintaining clarity and definition, even at high volumes. The integrated Class‑D amplifier ensures efficient power delivery with minimal heat buildup, while the rugged birch multiplex cabinet withstands the demands of touring and frequent transport. When paired with LINEAR 3 or LINEAR 5 full‑range tops, it forms a scalable, high‑performance PA system capable of handling a wide range of professional applications.

Included Accessories

• Power cable
• User documentation

Included Software

• Built‑in DSP with crossover and polarity control
• Preset configurations for seamless integration with LINEAR series tops