{"product_id":"stage22-mm-acoustics-m418-quadstack-bundle-4-subs","title":"MM Acoustics M4.18 Quadstack Bundle – 4 Subwoofers","description":"The MM Acoustics M4.18 Quadstack Bundle delivers four horn‑loaded 18-inch subwoofers engineered for high-impact low‑frequency reinforcement in touring and install applications. Each compact enclosure weighs just 62 kg yet, combined as a quad stack, the system achieves an exceptional 153 dB maximum SPL. With a frequency response of 35–200 Hz (‑3 dB) and a sensitivity of 112 dB (1 W\/1 m), the M4.18 offers deep extension and impressive efficiency. Power handling is rated at 1800 W AES, 3600 W programme and 10,000 W peak at 8 Ω, giving ample headroom for modern electronic and live content.\n\nCabinets are built from multiplex beech and finished in durable black Warnex (RAL9005), with optional RAL colours available. A robust metal grille with backing foam protects the driver, and dust\/splash resistance supports temporary outdoor use. Connectivity is via 2x Neutrik Speakon NL4, and optional stackware is available for pairing with M28LA systems. Dimensions per cabinet are 700 x 580 x 900 mm.\n\nIdeal for clubs, festivals, mobile production and permanent installs seeking compact form, strong low‑end punch and high output.\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\u003e4 x MM Acoustics M4.18 horn-loaded 18-inch subwoofers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003e\u003cstrong\u003eSTAGE22.9.100.980\u003c\/strong\u003e\u003c\/small\u003e\u003c\/p\u003e","brand":"MM Acoustics","offers":[{"title":"New Equipment","offer_id":63768441422201,"sku":null,"price":11472.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0288\/2260\/1776\/files\/94-m418_grill.jpg?v=1781537223","url":"https:\/\/stage-experts.com\/products\/stage22-mm-acoustics-m418-quadstack-bundle-4-subs","provider":"Stage Experts Ltd","version":"1.0","type":"link"}