{"product_id":"martinlogan-grotto-12-powered-subwoofer","title":"Martin Logan Grotto 12 12-Inch Powered Subwoofer","description":"\u003cp\u003e\u003cstrong\u003eDeep bass. Better music. More engaging home theater.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA high-performance 12-inch subwoofer offering authoritative bass and sophisticated control for dedicated listening rooms.\u003c\/p\u003e\n\u003cp\u003eThe Grotto 12 is a compelling choice for listeners who want to extend their system’s low-frequency performance. The best results depend on room size, speaker matching, placement and calibration—not just driver diameter.\u003c\/p\u003e\n\u003ch3\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e12-inch powered subwoofer\u003c\/li\u003e\n\u003cli\u003eGrotto series\u003c\/li\u003e\n\u003cli\u003eRoom-friendly placement and system integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eExpert Advice from Audible Elegance\u003c\/h3\u003e\n\u003cp\u003eAudible Elegance helps customers throughout Cincinnati, Northern Kentucky and Southeast Indiana choose and integrate subwoofers with complete music and home theater systems. Contact our showroom for guidance on the right model for your room.\u003c\/p\u003e\n\u003ch4 class=\"title2\"\u003eSpecifications\u003c\/h4\u003e\n\u003cp\u003e\u003ci\u003eSpecifications are subject to change without notice\u003c\/i\u003e\u003c\/p\u003e\n\u003ctable class=\"uk-table uk-table-hover uk-table-divider\" id=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eDigital Signal Processing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eUltra High-Resolution 500MHz Vojtko DSP Engine with 64bit processing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eFrequency Response\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e22-120 Hz ±3 dB (Anechoic via LFE input)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eLow Frequency Transducer\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eTriple 12\" (25.4cm) Hybrid Woofer System consisting of 1x high-excursion, aluminum cone in a cast aluminum basket with 2x aluminum cone passive radiators for enhanced low frequency output.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eCabinet\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eSealed 1\" thick MDF cabinet with center brace and reinforced MDF woofer baffles\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eAmplifier\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eMartinLogan Magnitude MT2kW Amplifier: 2000W peak (1000W continuous)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eControls (Backplate)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eLevel: Interactive LED Backlit Knob, Min-Max\u003cbr\u003eTone Sweep: Sweep Start and Pause (with status light)\u003cbr\u003ePower Mode: On, 12v Trigger, Auto\u003cbr\u003eWireless Audio Pairing Button (for included MartinLogan wireless transmitter)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eControls (via Bluetooth)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eLevel: -40 to 12dB (Min-Max)\u003cbr\u003eLow-Pass Filter (Frequency): 35–120Hz (1° Increments)\u003cbr\u003eLow-Pass Filter (Order): Bypass, Third, Fourth\u003cbr\u003ePhase: 0–180° (1° Increments)\u003cbr\u003ePhase (Polarity): Normal, Inverted\u003cbr\u003ePreset Listening Modes: Movie, Music, Night\u003cbr\u003e20–30Hz Level: ±10dB\u003cbr\u003eAnthem Room Correction (ARC Genesis): On, Off\u003cbr\u003eTone Sweep (120-20Hz): On, Off, Pause (Frequency)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eWireless Inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIntegrated Wireless Receiver, Wireless Transmitter Included\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eInputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eLine Level: Left, Right, and LFEXLR: LFE\u003cbr\u003eSpeaker Level: Left and Right (requires banana plugs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eOutputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eRCA Sub Out (combines and repeats all incoming signals to an additional subwoofer)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003ePower Draw\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eMax: 1000W\u003cbr\u003eStandby (Wireless Disabled): 0.5W\u003cbr\u003eStandby (Wireless Enabled): \u0026lt;2W\u003cbr\u003e*Transmitter and Subwoofer combined\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eFeet\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIntegrated Anti-Vibration Feet (carpet spikes included)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eWeight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e82.5 lbs\u003cbr\u003e(37.4 kg)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eDimensions (H x W x D)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e17.8\" x 17.9\" x 17.9\"\u003cbr\u003e(45.2cm x 45.4cm x 45.4cm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eFinish\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eGloss Black\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"MartinLogan","offers":[{"title":"Default Title","offer_id":67881496903879,"sku":null,"price":1954.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/3661\/8695\/files\/MARTIN-LOGAN-SUB---GROTTO-12png.png?v=1791733503","url":"https:\/\/www.audibleelegance.com\/products\/martinlogan-grotto-12-powered-subwoofer","provider":"Audible Elegance","version":"1.0","type":"link"}