HK Audio LINEAR SUB 1800A 18″ Active Subwoofer

The HK Audio LINEAR SUB 1800A 18″ Active Subwoofer A delivers powerful 18″ active sub-bass, designed to complement the LINEAR 3 mid/high units. Powered by a 1200W Class D amplifier, it produces deeper and clearer bass than the 15″ version. With a peak SPL of 132 dB, it fills large venues with dynamic, impactful sound. The frequency response extends from 42 Hz to 38 Hz (-10 dB), ensuring smooth integration into diverse setups.

The subwoofer includes built-in protection circuits like undervoltage, thermoprotection, and overcurrent safeguards, ensuring both the unit and connected equipment stay protected. The adjustable crossover (100-120 Hz) with a 24 dB/octave slope lets users fine-tune the system to their needs. Dual analog XLR inputs and outputs simplify connections with other gear. The subwoofer’s MDF housing is finished in black acrylic enamel, combining durability with a sleek design. Carrying handles and a pole mount offer convenient transport and setup.

Weighing 42 kg (92.6 lbs) and measuring 51 x 67 x 72 cm, the LINEAR SUB 1800 A is designed for professional sound environments. Whether for live sound or permanent installations, it provides consistent, high-quality sound reproduction, ensuring reliable performance in demanding applications.

The HK Audio LINEAR SUB 1800A 18″ Active Subwoofer is a highly efficient and powerful 18″ active subwoofer that ensures deep, clear bass and seamless integration with the LINEAR 3 series. Its robust design, advanced protection features, and powerful amplification make it an ideal solution for professional audio applications. The adjustable crossover and versatile connectivity options allow for precise tuning and system customization. Whether used for live sound reinforcement or permanent installations, the LINEAR SUB 1800 A provides consistent, high-quality performance. This subwoofer delivers the reliability and power needed for demanding audio environments.