PORTABLE SUB 118 A

HK Audio PORTABLE SUB 118 A – 18" active subwoofer with 24-bit DSP, 1400 W and compatibility with LUNAR, SONAR & POLAR MK2

The HK Audio PORTABLE SUB 118 A belongs to the new PORTABLE SUB series, a range of professional subwoofers developed to perfectly complement the HK Audio LUNAR, SONAR and POLAR MK2 systems. Designed around a “One Sub For All” philosophy, this series provides a unified solution capable of instantly adapting to multiple loudspeaker ranges thanks to dedicated DSP presets. It is therefore an ideal foundation for DJs, musicians, event service providers and rental companies looking for a high-performance bass solution that is easy to deploy and seamlessly integrated into their sound systems.

The PORTABLE SUB series combines 1400 W peak Class-D amplification with a powerful 24-bit DSP featuring digital filters, intelligent limiters and dedicated acoustic optimizations. Thanks to the LUNAR, SONAR, POLAR and General LPF 100 Hz presets, the subwoofer automatically adapts its behavior to the connected speakers, ensuring optimal crossover integration, improved phase coherence and highly precise bass reproduction. This technology delivers deep, fast and dynamic low frequencies while ensuring excellent loudspeaker protection.

The design of the HK Audio PORTABLE SUB 118 A also focuses on intuitive operation. Its integrated stereo preamplifier makes it easy to build compact 2.1 systems by allowing a direct stereo source connection to the subwoofer before routing the signal to two satellite speakers. The fanless amplification design ensures completely silent operation, even in quiet environments. Optimized ports reduce air turbulence and further enhance bass precision and impact.

Manufactured in St. Wendel, Germany, the HK Audio PORTABLE SUB 118 A features a high-density MDF enclosure designed to minimize unwanted resonances and optimize low-frequency reproduction. Ergonomic MultiGrip handles ensure safe and comfortable transport, while the design follows the visual identity of the LUNAR, SONAR and POLAR MK2 series. Each unit benefits from strict quality control in accordance with DIN EN ISO 9001:2015 standards and a 5-year manufacturer warranty after registration on the HK Audio website.

Features & Specifications:

• Type : active bass-reflex subwoofer
  
  
• Low-frequency driver : 1 x 18" with 3" voice coil
  
  
• Amplification : Class-D
  
  
• RMS power : 700 W
  
  
• Peak power : 1400 W
  
  
• Maximum sound pressure level : 131 dB SPL Peak
  
  
• Sensitivity : 99 dB (1 W / 1 m)
  
  
• Frequency response (-6 dB) : 35 Hz – crossover frequency
  
  
• Frequency response (-10 dB) : 31 Hz – cutoff frequency
  
  
• Crossover frequencies : 80 Hz or 100 Hz selectable
  
  
• DSP : 24-bit digital processor
  
  
• Sampling rate : 48 kHz
  
  
• DSP presets : LUNAR, SONAR, POLAR, General LPF 100 Hz
  
  
• Protection : subsonic filter, Peak and RMS limiter
  
  
• Analog inputs : 2 x balanced XLR / Jack combo inputs
  
  
• Analog outputs : 2 x balanced XLR Thru outputs
  
  
• Preamplifier : integrated stereo preamp for 2.1 configurations
  
  
• Power supply : IEC connector
  
  
• Cooling : fanless operation
  
  
• Handles : ergonomic MultiGrip handles
  
  
• Construction : high-density low-resonance MDF enclosure
  
  
• Manufacturing : Made in Germany
  
  
• Dimensions : 510 x 615 x 703 mm
  
  
• Weight : 39.3 kg
  
  
• Warranty : 5 years after registration on the HK Audio website
  

Key Points:

• Professional 18" active subwoofer designed for demanding live, DJ and event applications
  
  
• 1400 W peak Class-D amplification with silent fanless operation
  
  
• High-precision 24-bit DSP with automatic optimization for compatible HK Audio systems
  
  
• 4 built-in presets: LUNAR, SONAR, POLAR and General LPF 100 Hz
  
  
• Native compatibility with HK Audio LUNAR, SONAR and POLAR MK2 series
  
  
• 131 dB maximum SPL for powerful, deep and impactful bass reproduction
  
  
• Extended response down to 31 Hz for outstanding sub-bass performance
  
  
• Integrated stereo preamplifier enabling compact 2.1 system configurations
  
  
• Combo XLR / Jack inputs and XLR Thru outputs for easy integration into any audio setup
  
  
• Robust MDF enclosure designed for accurate and controlled low-frequency reproduction
  
  
• Ergonomic MultiGrip handles for easy transport and handling
  
  
• German-made construction with a 5-year manufacturer warranty after registration