Used Martin Audio SX218
Used Martin Audio SX218 units available here as second-hand subwoofers built around dual 18-inch drivers, delivering deep, powerful bass for concert touring, festivals and theatre applications. Lightweight and portable, the SX218 is a dependable low-end solution for professional live events. Scroll down to browse the used Martin Audio SX218 listings currently available from sellers around the world.
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Martin Audio SX218 specifications
| Brand | Martin Audio |
| Segment | Audio |
About the Martin Audio SX218
The Martin Audio SX218 is a professional subwoofer designed for concert touring, festivals and theatre environments. Its dual 18-inch driver configuration produces deep, powerful bass, giving audio systems the low-end punch required for demanding live applications. Lightweight and highly portable, the SX218 suits professionals who need a reliable subwoofer that is straightforward to set up and move between venues. The unit is commonly seen as part of larger Martin Audio systems, paired with line array cabinets to form complete front-of-house rigs for live events and installations.
Martin Audio SX218 — buyer FAQs
What is the Martin Audio SX218 and what is it designed for?
The Martin Audio SX218 is a professional subwoofer built around dual 18-inch drivers, designed to produce deep, powerful bass for concert touring, festival and theatre applications. It is described as lightweight and portable, making it straightforward to transport and set up between venues. Its low-end output is intended to complement full front-of-house rigs in demanding live sound environments.
Who makes the SX218 and how does it fit into their product range?
The SX218 is made by Martin Audio, a British loudspeaker manufacturer founded in 1971 and based in High Wycombe, England, and part of the Focusrite Group since 2019. The SX218 sits within Martin Audio's subwoofer range and is regularly used alongside the company's line array cabinets, including WPM and W8LM systems, to form complete professional touring and installation rigs.
What line array systems is the SX218 commonly paired with?
Used SX218 units regularly appear alongside Martin Audio line array cabinets such as the W8LM and WPM. In larger touring or installation configurations the SX218 is combined with multiple line array enclosures, flying hardware and DSP amplifiers to form a complete front-of-house system. The SX218 provides the low-frequency foundation within these multi-component rigs.
What should I check when buying a used Martin Audio SX218?
Check that both 18-inch drivers are functioning correctly, as a dual-driver subwoofer used in touring environments can see significant wear. Confirm whether a flight case or covers are included, since some used units are sold without them. Condition ratings vary from 'great' working condition through to minor cosmetic marks. Every listing on this page carries a 21-day warranty covering major functional faults; the buying guide at 10kused.com/used-av-equipment-guide/ covers the full process.
How much does a used Martin Audio SX218 cost?
The used price of a Martin Audio SX218 varies depending on condition, whether it comes with covers or a flight case, and whether it is sold as a single unit or as part of a larger line array package. Single units and multi-cabinet bundles carry different price points. Check the live listings on this page for current asking prices, and look for the Make an Offer option if you want to negotiate.









