HK LINEAR-9-118-SUB-A 1100 Watt 18" Active Subwoofer

The HK LINEAR 9 118 SUB A is a powerhouse 18" active subwoofer engineered for deep, precise low-frequency reproduction. Designed with a bass-reflex cabinet for compact portability and a punchy response, it delivers an impressive 131 dB peak SPL. Built-in stereo preamps and cardioid filter presets make it perfect for scalable system setups, including 2.1 configurations. Network-ready with full DSP control and remote access, this subwoofer combines clarity, control, and convenience in a road-tough birch multiplex enclosure.

Features

• 1100W RMS Class D amplifier delivers clean, punchy bass with high headroom
• 18" woofer with 4" voice coil for tight low-end extension
• 131 dB peak SPL and 38 Hz low-end extension (-10 dB)
• Cardioid filter presets (1:1, 2:1) and front mode for effective LF control
• Stereo preamp design makes it ideal for 2.1 systems
• Remote-access DSP with 10-band EQ, delay, polarity, mute, and limiter
• EtherCON network ports for remote control via DSP CONTROL software (Windows/macOS)
• PowerCon In/Thru connectors for secure daisy-chaining
• M20 pole mount, dual MultiGrip handles, and compact cabinet for easy transport
• Rugged birch multiplex enclosure with black PU coating

Specifications

Acoustic Performance
- Max SPL (Avg @ 10% THD): 129 dB (half space, 42 Hz – 100 Hz avg)
- Max SPL (Peak @ 10% THD): 131 dB (half space)
- Frequency Response (±3 dB): 42 Hz – X-over
- Frequency Response (-10 dB): 38 Hz – X-over
- Sample Rate: 96 kHz
- System Latency: < 2.6 ms

Power & Electronics
- Amplifier Output: 1100 W RMS
- Amplifier Type: Class D
- Power Consumption: 1.9 A nominal @ 100–240 V
- Mains Connection: 1 x PowerCon NAC3 In, 1 x PowerCon NAC3 Thru

Driver
- LF Driver: 1 x 18", 4" voice coil

DSP & Control
- Inputs: 2 x XLR combo (balanced)
- Outputs: 2 x XLR Thru (balanced), 1 x XLR DSP Out
- Max Input Level: +20 dBu
- Filter Presets: Front, Cardioid 1:1, Cardioid 2:1, Remote
- DSP Features: 10-band parametric EQ, low-pass filter, polarity, level, delay, limiter, mute
- Network: 1 x EtherCON RJ45 (In), 1 x EtherCON RJ45 (Thru)
- Remote Software: DSP CONTROL (Windows, macOS)

Construction
- Housing: Birch multiplex
- Finish: PU coating, black
- Grille: 2 mm steel grille with black acoustic foam backing
- Handles: 2 x MultiGrip
- Pole Mount: 1 x M20 threaded insert

Dimensions & Weight
- Dimensions (WxHxD): 55 x 56 x 69 cm (21.65" x 22.05" x 27.17")
- Weight: 41.5 kg (91.5 lbs)