L SUB 4000 A is a flexible 18″ double vented bandpass subwoofer. Compatible with all LINEAR 5 fullrange speakers and mid/high units, its powerful low end – ranging from 30 to 100 Hertz – is totally and powerfully impressive. L SUB 4000 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)