Key Features
- High-performance 18'' woofer with a 1200W class-D power amp
- Low-ranging bass response all the way down to 31Hz at -10dB
- Rugged and road-ready birch multiplex enclosure with steel grille
- Designed for complete compatibility with all Linear 5 mid/high units
HK Audio Linear L SUB 4000 A 18'' Active Subwoofer Overview
The ultimate low-frequency foundation for your PA system. The HK Audio Linear L SUB 4000 A is an 18'' active subwoofer designed for complementing Linear 5 PA systems. An incredibly rugged double vented bandpass enclosure crafted from birch multiplex plays host to a 1200W class-D power amp, driving the L SUB 4000 A to deliver a massive 137db of crushing bass all the way down to 30Hz. This thunderous subwoofer can also be used as a sub-low add-on for an L SUB 2000 A to provide an extended and beefier low-end.
The L SUB 4000 A also boasts an adjustable crossover frequency, allowing you to select between 70 and 100Hz with a 24dB/oct slope. A selection of highly-efficient active protection circuits keep your subwoofer safe for reliable operation night after night, whilst user-friendly controls make operation a breeze. If you're looking for powerful bass with incredible power and definition in the 30 to 100Hz range, the L SUB 4000 A is the perfect addition to your system.
Product Ref: 126484
Full Description
View Full DescriptionThe Linear Subwoofer - power, precision, and punch
The perfect complement to any Linear system. Linear Subwoofers boast a range of professional features to provide crisp, dynamic bass for both the Linear 3 and Linear 5 series of mid/high loudspeakers. Each of the Linear Subwoofers can be configured in a half-stack, full-stack, 2.1 configuration, or mono sub cluster.
HK's powerful Linear series delivers incredible high-definition audio gig after gig. High-performance amplification combined with precision designs and architecture give you the best possible sound from your system. Blow your audience away every single night with the power and definition of a Linear series PA system.High-SPL design for any situation
Power isn't everything, but it definitely helps. Combining HK's incredible 1200W class-D power amp design with excellent sensitivity, the L SUB 4000 A is capable of producing an absolutely enormous maximum SPL of up to 137dB. Perfect for large audiences, a Linear PA system is the perfect choice for both portable and installed setups.
Features
- 18'' subwoofer with 1200W of class-D power
- Rugged double vented bandpass enclosure crafted from birch multiplex
- Powerful low-end ranging from 30Hz to 100Hz
- Can serve as a sub-low add-on to the L SUB 2000 A to beef up the 30Hz - 70Hz range
- Capable of delivering a huge maximum SPL of up to 137dB (half space)
- Single 18'' woofer with a 4'' voice coil
- Eight integrated HK Audio MultiGrips
- The perfect addition to any Linear 5 mid/high units, particularly the Linear 5 LTS A loudspeakers
Specifications
- Maximum SPL: 135dB half space (at 10 percent THD)
- Peak: 137dB half space (at 10 percent THD)
- Calculated: 138dB half space
- Frequency Response:
- +/-3dB: 39Hz - X-over
- -10dB: 31Hz - X-over
- Power Rating: 1200W
- Amplifier: Class-D
- Active Protection Circuits:
- Under-voltage
- Thermal
- Short circuit
- Over-current
- Subsonic filter, 24dB/oct
- Peak limiter
- Low-Frequency Speaker: 1 x 18'' (with advanced ventilated voice coil gap)
- Cut-Off Frequency Active: 70/100Hz variable with 24dB/oct
- Connections:
- 2 x XLR combo inputs (balanced)
- 2 x XLR thru (balanced)
- 2 x XLR mid/high out
- Input Sensitivity: +4dBu at gain centre-notched
- Pole Mount: 2 x M20 (K&M)
- Handles: 8 x HK Audio MultiGrip
- Enclosure: Birch multiplex
- Grille: 2mm metal grille backed with black acoustic foam
- Finish: Acrylic enamel, black
- Dimensions: 910mm x 510mm x 810mm (W x H x D)
- Weight: 59kg / 130.1lbs
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