{"product_id":"stage20-ref-2529-martin-audio-s218-blackline-subwoofer","title":"Martin Audio Blackline S218 Subwoofer – Dual 18-inch","description":"The Martin Audio Blackline S218 is a high-output, dual 18-inch subwoofer designed to deliver deep, punchy low-frequency reinforcement for live sound and fixed install applications. Its robust cabinet houses two long-excursion 18-inch drivers engineered for high SPL, extended bass response and excellent transient control, making it a strong partner to Martin Audio full-range systems. The enclosure is constructed for touring reliability with solid bracing and durable finishes, while front porting supports efficient airflow and consistent performance across demanding shows. Standard professional connectors and rigging\/stacking options simplify integration with existing PA setups, whether ground-stacked under point source arrays or deployed as part of larger systems. Ideal for music venues, clubs, houses of worship and events that demand authoritative low end, the S218 maintains clarity and impact even at high levels, helping engineers achieve a tight, musical sub-bass foundation. Use it to add weight to live bands, DJs and playback systems where controlled power and reliability are essential.\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRef 2529 Martin Audio S218 Blackline Subwoofer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003e\u003cstrong\u003eSTAGE20.1.100.200\u003c\/strong\u003e\u003c\/small\u003e\u003c\/p\u003e","brand":"Martin","offers":[{"title":"Used Equipment","offer_id":63895528309113,"sku":null,"price":1380.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0288\/2260\/1776\/files\/Ref-2529-Martin-Audio-S218-Blackline-Sub-1-300x271.webp?v=1783325888","url":"https:\/\/stage-experts.com\/products\/stage20-ref-2529-martin-audio-s218-blackline-subwoofer","provider":"Stage Experts Ltd","version":"1.0","type":"link"}