{"product_id":"martinlogan-grotto-15-subwoofer","title":"MartinLogan Grotto 15 Subwoofer","description":"\u003cp dir=\"ltr\"\u003eThe Grotto 15 pairs an active 15\" aluminum cone woofer with dual 15\" passive radiators to boost low-frequency output, making it the largest and most powerful Hybrid Woofer System MartinLogan has built. It’s driven by a powerful amplifier and a 64-bit DSP engine. Connect via XLR, RCA, speaker level, or built-in wireless, and control it with the MartinLogan Subwoofer Control App. It supports ARC Genesis Room Correction, so you can tune it to your room in minutes with the optional ARC Calibration Kit.\u003c\/p\u003e","brand":"MartinLogan","offers":[{"title":"Default Title","offer_id":67864813568276,"sku":"GRO15GBE","price":4159.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2263\/3215\/files\/GROTTO15_4.png?v=1793108211","url":"https:\/\/atlas-sv.com\/products\/martinlogan-grotto-15-subwoofer","provider":"Atlas Sound \u0026 Vision","version":"1.0","type":"link"}