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Martin Audio Blackline X218 Passive PA Speaker

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Price Excludes VAT

Found a lower price? Let us know

Martin Audio Blackline X118 Passive sub

The Blackline X218 is a dual-driver, high performance subwoofer for use with BlacklineX Series full-range loudspeakers. With an operating range of 42Hz-200Hz + 3dB, it produces high output levels with low distortion and can be used singly or stacked horizontally. It features dual 18” (460mm)/4” (100mm) voice coil, long-excursion drivers in a reflex enclosure with eight large ports that reduce air turbulence at high output levels.


  • Dual-driver, direct radiator subwoofer
  • 2 x 18” (460mm) drivers with 4” (100mm) voice coils
  • Durable plywood enclosure
  • Large ports for reduced air noise
  • Powder coated, perforated steel grille
  • Integral ergonomic handles
  • 35mm pole-mount socket
  • Feet for vertical or horizonal operation
  • Rebate recesses for stable horizontal stacking
  • M10 flying inserts


  • Portable sound reinforcement
  • Live music clubs
  • Bars and restaurants
  • Nightclubs
  • Corporate AV events and conferences
  • Weddings and parties
  • Secondary stages at festivals
  • HoW, leisure centres and retail outlets
TYPE Dual-driver, direct radiating subwoofer
FREQUENCY RESPONSE (5) 42Hz-200Hz ± 3dB, -10dB @ 33Hz
DRIVER 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet
RATED POWER (2) 1600W AES, 6400W peak
MAXIMUM SPL (9) 141dB peak (half space)
DISPERSION (-6DB) Omnidirectional
CROSSOVER 80-120Hz active
ENCLOSURE Birch/poplar ply
FINISH Black textured paint
PROTECTIVE GRILLE Black perforated steel
PIN CONNECTIONS (INPUT) 1+ 1- Link Through 2+ 2-
PIN CONNECTIONS (LINK) 1+ 1- Link Through 2+ 2-
FITTINGS 12 x M10 inserts, pole-mount socket
DIMENSIONS (W) 1049mm x (H) 587mm x (D) 727mm
(W) 41.3ins x (H) 23.1ins x (D) 28.6ins
WEIGHT 88kg (194lbs)

Additional information

Delivery & Returns

Free Delivery on all orders over £99 plus VAT.

Your purchase will usually be with you within 3 working days of your order being placed. 

If you are in the Scottish Highlands, Northern Ireland, Isle of Man and the Channel Isles you will still get free delivery but your order may take up to 6 working days to get to you.

Please note: Delivery times pending stock availability.

-I need my products quickly- can you help?

Absolutely!  Please give us a call and we'll do our best to get your items to you quickly

-When is the cut off for Next day delivery?

If you place your order before 2 pm Monday- Friday, we will dispatch the same day.


Our returns department aims to help you as quickly as possible with any issues you may have with your product.