HK Audio L SUB 4000 A

This subwoofer is designed for professional sound reinforcement in demanding environments like clubs, concert halls, and large event spaces. With a max SPL of 137dB, it provides the high-output, authoritative low-end needed to fill larger rooms effectively.

Yes, it is designed to integrate seamlessly with full-range systems, particularly the HK Audio Linear 5 series. Its flexible deployment options allow it to function as a standalone unit or as a sub-low extension to bolster your existing setup.

The L SUB 4000 A weighs 125.88 lbs, which is substantial. While the birch multiplex construction is highly durable for frequent touring and setup, you will definitely need a dolly or a second person to move it safely.

This specific enclosure design is engineered to maximize the efficiency of the 18-inch driver, resulting in deeper, more punchy bass response. It helps the subwoofer maintain clear, dynamic fidelity even when handling intense signal peaks.

No, the L SUB 4000 A is an active subwoofer, meaning it has a built-in amplifier delivering 1200 Watts RMS. You simply need to connect your signal source and power, and it is ready to perform.

Yes, the cabinet is built from birch multiplex, a high-quality plywood known for its strength and resistance to impact. It is specifically engineered to withstand the rigors of professional transport and frequent setup in live environments.