LINEAR SUB 4000 is a powerful 18″ dual vented bandpass subwoofer. It is compatible with all LINEAR 5 full-range speakers and mid/high units and delivers an impressively powerful low-frequency response from 30 to 100 Hertz. The subwoofer is the recommended extension to the LINEAR 5 LTS long-throw powerhouse. It can be used as a subwoofer extension to the existing LINEAR SUB 2000, delivering powerful low bass with optional frequency separation. Filter presets for Lab.Gruppen IPD and PLM 12K44 controllers are available.
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Power-handling nominal (RMS) 1200 W
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Power-handling, program 2400 W
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Frequency response +/-3 dB 39 Hz – X-over
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Frequency response -10 dB 31 Hz – X-over
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Sensitivity 1 W @ 1 m 106 dB half space
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Max. SPL @ 10% THD 135 dB half space
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Max. SPL peak @ 10% THD 137 dB half space
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Electrical impedance 4 ohms
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Low-/mid speaker 1x 18", 4" voice coil featuring advanced ventilated voice coil gap
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Crossover frequency 100 Hz, active X-over with controller amp (can be set lower when used as a sub-low)
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Connections 2x Speakon NL4, pin assignment switchable between 1+/1- and 2+/2-
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Integrated pole mount 2x M20
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Carrying handles 8x MultiGrip
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Housing Birch multiplex
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Finish Acrylic enamel, black
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Front grille 2 mm metal grille backed with black acoustic foam
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Dimensions (WxHxD) 91 x 51 x 81 cm 35-3/4 x 20 x 31-25/32"
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Weight 57.1 kg / 125.9 lbs