{"product_id":"stage4-sb28-sub-l-acoustics","title":"L-Acoustics SB28 Subwoofer – Dual 18-inch Touring Sub","description":"The L-Acoustics SB28 is a high-performance touring subwoofer engineered to partner seamlessly with KUDO, V-DOSC, dV-DOSC and ARCS systems. Its dual 18-inch drivers in a bass-reflex enclosure deliver deep, controlled low-frequency extension down to 25 Hz with impressive headroom. Advanced laminar vents with contoured profiles reduce turbulence and port noise, ensuring consistent, articulate output at very high SPLs. Optimised for LA8 amplified controllers, dedicated presets provide precise EQ, bandwidth management and L-DRIVE protection to safeguard against thermal and excursion stress. Flexible tunings for 60 Hz or 100 Hz crossover points support both standard and cardioid configurations, delivering tighter pattern control and reduced onstage spill when required. Built from rugged Baltic birch with integrated handling rails (backwards compatible with SB218), the SB28 is designed for reliable rigging, transport and long-term durability in demanding environments. Ideal for concert touring, festivals, arenas and high-SPL installations, the SB28 adds powerful, musical low end to L-Acoustics full-range systems when maximum impact and control 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\u003eL-Acoustics SB28 Subwoofer | Dual 18-inch Touring Sub\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003e\u003cstrong\u003eSTAGE4.2.100.700\u003c\/strong\u003e\u003c\/small\u003e\u003c\/p\u003e","brand":"L-ACOUSTICS","offers":[{"title":"Used Equipment","offer_id":57367646568825,"sku":null,"price":3104.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0288\/2260\/1776\/files\/sb28-sub-l-acoustics.jpg?v=1780416276","url":"https:\/\/stage-experts.com\/products\/stage4-sb28-sub-l-acoustics","provider":"Stage Experts Ltd","version":"1.0","type":"link"}