HK Audio LSUB-4000A Subwoofer

L SUB 4000 A – A LOW-END BOOST FOR THE LINEAR SERIES

The HK Audio LSUB-4000A Subwoofer is a 18″ Active Double-Vented Subwoofer, 1200W bandpass. Compatible with all hk audio linear 5 fullrange speakers and mid/high units, its powerful low end – ranging from 30 to 100 Hertz – is totally and powerfully impressive. HK Audio LSUB-4000A Subwoofer A can also serve as a sub-low add-on to LINEAR SUB 2000 to beef up the bottom end in the range of 30 to 70 Hertz.

Powerful and versatile 18″ subwoofer
Rugged wooden enclosure of birch multiplex: 15/18 mm, 9/13 ply
1200 W
31 Hz – X-Over
137 dB half space
1 x 18″ with 4″ voice coil
Compatible with all LINEAR 5 fullrange speakers and mid/high units
Ideal add-on for setups using LINEAR 5 LTS A
Sub-low add-on to LINEAR SUB 2000 (A)

Specifications

Max SPL: 135 dB half space (@ 10% THD)
Max SPL peak: 137 dB half space (@ 10% THD)
Max SPL calculated: 138 dB half space
Frequency response +/- 3 dB: 39 Hz – X-Over
Frequency response -10 dB: 31 Hz – X-Over
Power Rating: 1200 W
Amplifier: Class D
Active protection circuits: Undervoltage Protection, Thermoprotection, Short Circuit Protection, Overcurrent Protection, Subsonic 24 dB/oct., Peak Limiter
LF Speaker: 1x 18″ featuring advanced ventilated voice coil gap
Cut-off frequency active: 70 Hz /100 Hz variable with 24 dB/oct.
Connections: 2x XLR–1/4″-Combo In, 2x XLR Thru, 2x XLR Mid/High Out
Input sensitivity: +4 dBu @ Gain center-notched
Pole mount: 2x M20 (K&M)
Handles: 8x HK Audio MultiGrip
Enclosure: Birch multiplex
Grille: 2 mm metal grille backed with black acoustic foam
Finish: Acrylic enamel, black
Dimensions (WxHxD): 35.8 x 20 x 31.9 in (91 x 51 x 81 cm)
Weight: 130.1 lbs / 59 kg