Outline SUB118-SP Self-Powered Ground-Stackable Subwoofer 1 x 18”
The Outline SUB118-SP is a tour-ready, self-powered subwoofer that unleashes astonishing low-frequency energy from a remarkably compact footprint. Purpose-built for live sound reinforcement, dance venues and AV installs, it pairs a high-excursion 18” woofer with a 2,400 W onboard amplifier to deliver chest-thumping bass down to 35 Hz with 142.5 dB peak output.
Immersive Low End, Engineered Efficiency
Outline’s proprietary Energy Retentive Porting (E.R.P.) channels airflow with fluid-dynamics precision, minimising turbulence and converting more amplifier power into pure acoustic energy. The result is tighter, faster and more authoritative bass that you can feel as well as hear.
Plug-&-Play Power and Control
The built-in Class D amplifier platform supplies up to 2,400 W RMS (4,800 W peak) and features four instantly recallable EQ presets plus selectable input gain, allowing the SUB118-SP to integrate seamlessly into any system without external processing.
Road-Tough Construction
Crafted from Baltic birch plywood and finished in virtually indestructible black polyurea, the enclosure withstands the rigours of touring while remaining visually discreet. Sixteen M8 threaded points, dual M20 pole mounts and comprehensive I/O ensure flexible deployment in ground-stacked, flown or pole-mounted configurations.
Key Features
- 35 Hz–800 Hz frequency range for deep, musical bass
- 142.5 dB SPL peak for large-scale live events
- Energy Retentive Porting for maximum transducer efficiency
- Four factory EQ presets for instant tonal tailoring
- USB control port for future firmware and monitoring options