LINEAR SUB-1800 A is an 18″ bass reflex subwoofer that is packed full of low-end. Unrivalled power, SPL of up to 132 dB and thumping bass (all the way to 38 Hz) make this powered sub the ideal add-on to mid/high units from the LINEAR 3 family when you need just a little more loudness and low-end. LINEAR SUB 1800 A can also be used in combination with mid/high units from the LINEAR 5 family, or as a bass extension to the ELEMENTS BIG BASE system.

Key Features

• Compact powerful subwoofer
• 1200 watts
• 1x 18″ Speaker
• 132 dB Max SPL Peak @ 10% THD (halfspace)
• Ideal add-on to mid/high units from the LINEAR 3 family
• Can also be used in combination with LINEAR 5 mid/high units, or as a bass extension to the ELEMENTS BIG BASE system
• Rugged wood enclosure
• Adjustable X-over frequency
• Integrated HK Audio MultiGrips

General Specifications

• Model:  L SUB 1800 A
• Max SPL:  130 dB half space (@ 10% THD)
• Max SPL Peak:  132 dB half space (@ 10% THD)
• Max SPL Calculated:  133 dB half space
• Frequency Response:  /- 3 dB 42 Hz – X-Over
• Frequency Response:  -10 dB 38 Hz – X-Over
• Power Rating:  1200 W
• Amplifier:  Class D
• Active Protection Circuits:  Under-voltage, thermal, short circuit, and over-current protection, Subsonic 24 dB/oct. peak limiter
• LF Speaker:  1x 18″
• Cut-off Frequency Active:  100/120 Hz variable with 24 dB/oct.
• Connections
  • 2x XLR Combo In bal.
  • 2 x XLR Thru bal.
  • 2x XLR-Mid/High Out
• Input Sensitivity: 4 dBu @ Gain center-notched
• Pole Mount:  1x M20 (K&M)
• Handles:  4x HK Audio MultiGrip
• Enclosure:  MDF 16 mm
• Grille:  2 mm metal grille backed with black acoustic foam
• Finish:  Acrylic enamel, black
• Dimensions (WxHxD):  51cm X 67cm X 72cm
• Weight:  42 kg / 92.6 lbs.