HK Audio LINEAR™ SUB 1800-A – 1200W 18″ Active Subwoofer

Unmatched Low-End Power for Every Event

The HK Audio LINEAR SUB 1800 A is an 18” bass reflex subwoofer that packs an incredible punch. With a maximum sound pressure level of up to 132 dB, this active subwoofer is perfect for any event where powerful, deep bass is essential. It delivers robust low-end performance down to 38 Hz, making it an ideal addition to the LINEAR 3 and LINEAR 5 mid/high units for enhanced audio experiences.

Advanced Features for Optimal Performance

This active subwoofer is powered by a Class D amplifier with a peak output of 1200 W, providing ample power for even the most demanding applications. Its active protection circuits—including undervoltage, thermal, and short-circuit protection—ensure reliability and safety during operation. The LINEAR SUB 1800 A is designed for seamless integration with various audio systems, making it a versatile choice for professionals and enthusiasts alike.

Key Features

• 1 x 18” LF driver with a 3” voice coil for deep, impactful bass.
• Maximum SPL @ 10% THD: 130 dB half space (40 Hz – X-Over averaged).
• Variable active crossover frequency adjustable between 100 Hz and 120 Hz with a 24 dB/octave slope.
• Dual analog XLR combo inputs for versatile connectivity.
• Durable housing made from 16 mm MDF with a sleek black acrylic enamel finish.

Specifications

• Max. SPL Peak @ 10% THD: 132 dB half space
• Frequency response +/-3 dB: 42 Hz – X-Over
• Frequency response -10 dB: 38 Hz – X-Over
• Dimensions (WxHxD): 51 x 67 x 72 cm (20-5/64 x 26-3/8 x 28-11/32″”)
• Weight: 42 kg / 92.6 lbs
• Active protection circuits: Undervoltage, Thermal, Short-Circuit, Overcurrent, Subsonic (24 dB/oct.), Peak-Limiter
• Mains connector: 1 x IEC socket with V-Lock cord retainer
• Power consumption: 3 A / 220-240 V (6 A / 100-120 V) nominal according to EN 60065
• Pole mount: 1 x M20
• Carrying handles: 2 x MultiGrip
• Front grille: 2 mm metal grille backed with black acoustic foam