Compatible with all LINEAR 5 full-range and mid/high models
Birch multiplex cabinet
HK Audio Linear Sub 4000 at a glance:
The HK Audio Linear Sub 4000 is a powerful 18″ dual vented bandpass subwoofer. It is compatible with all LINEAR 5 full-range and mid/high models and impresses with a powerful low-frequency response from 30 to 100 Hertz. The Bass is the recommended complement to the LINEAR 5 LTS long-throw powerhouse.
As a sublow extension to the existing LINEAR SUB 2000, it delivers powerful low bass with optional frequency separation. Filter presets for Lab.gruppen IPD and PLM 12K44 controllers are available.
Technical data
Rated power RMS: 1200 W
Program power handling: 2400 W
Frequency response +/-3 dB: 39 Hz - X-Over
Frequency response -10 dB: 31 Hz - X-Over
Characteristic sound pressure level 1 W @ 1 m: 106 dB Halfspace
Max. SPL @ 10% THD: 135 dB Halfspace
Max. SPL Peak @ 10% THD: 137 dB Halfspace
Electrical impedance: 4 Ohm
Loudspeaker: 1x 18", 4" voice coil with Advanced-Ventilated Voice-Coil-Gap
Crossover frequency passive: 100 Hz, active separation with controller amp (crossover frequency optionally lower when using sublow)
Connectors: 2 x Speakon NL4, pin assignment, switchable between 1+/1- and 2+/2-
High stand flange: 2x M20
Handles: 8x MultiGrip
Cabinet: birch multiplex
Cabinet finish: acrylic lacquer, black
Front grille: 2 mm metal grille with black acoustic foam
