{"product_id":"martin-logan-balanced-force-212-subwoofer","title":"Martin Logan Balanced Force  212 Subwoofer","description":"System Frequency Response\n18–120 Hz ±3dB; Anechoic through LFE effects input \u003cbr\u003e\n\nLow Pass Filter Frequencies\n30 - 80Hz \u003cbr\u003e\n\nPhase\n0°, 90°, 180°, 270°\u003cbr\u003e\n° \n\n25Hz Level Control\n±10dB at 25Hz  \u003cbr\u003e\n\nPower Control\nOn, Auto (12V Trigger), Off \u003cbr\u003e\n\nRoom Correction\nPerfect Bass Kit (PBK) Ready (Sold Separately) \u003cbr\u003e\n\nWoofers\nTwo 12\" (30.5cm) cast-basket, highexcursion, aluminum cone with extended throw driver assembly, sealed non-resonant asymmetrical chamber format \u003cbr\u003e\n\nAmplifiers\n2 x 850 watts\n (3,400 watts peak system total)\u003cbr\u003e \n\nInputs\nRCA: Left, Right and LFE.\n XLR: Left, Right and LFE.\n Speaker Level: Left and Right banana jacks.\n 12V Trigger: 3.5mm\n Mini USB (for PBK)\n USB (for crossover \u0026amp; firmware updates)\u003cbr\u003e \n\nOutput (RCA)\nMulti Out (for multi-sub connection) \u003cbr\u003e\n\nInput Impedance\nRCA: 10,000 Ohms\n XLR: 15,000 Ohms per phase\n Speaker Level: 10,000 Ohms per phase (20,000 Ohms red to black) \u003cbr\u003e\n\nPower Draw\nTypical: 250 Watts\n Idle: 30 Watts \u003cbr\u003e\n\nWeight\n140lbs. (63.5kg) each \u003cbr\u003e\n\nOverall Dimensions\n(HxWxD)\n22.6 x 22.6 x 22.9\n (57.4cm x 57.4cm x 58.2cm) \n\n","brand":"Martin Logan","offers":[{"title":"Martin Logan Balanced Force 212 Subwoofer - Black Ash","offer_id":57409461322060,"sku":"MLBALFORCE212BA","price":4162.5,"currency_code":"GBP","in_stock":true},{"title":"Dark Cherry","offer_id":57420952666444,"sku":"MLBALFORCE212DC","price":4162.5,"currency_code":"GBP","in_stock":true},{"title":"Gloss Black","offer_id":57420952797516,"sku":"MLBALFORCE212GB","price":4162.5,"currency_code":"GBP","in_stock":true},{"title":"Gloss White","offer_id":57420952830284,"sku":"MLBALFORCE212GW","price":4162.5,"currency_code":"GBP","in_stock":true},{"title":"Gloss Cherry","offer_id":57420952961356,"sku":"MLBF212-GC","price":4579.17,"currency_code":"GBP","in_stock":true},{"title":"Natural Cherry","offer_id":57420953649484,"sku":"MLBF212-NC","price":4579.17,"currency_code":"GBP","in_stock":true},{"title":"Walnut","offer_id":57420954009932,"sku":"MLBF212-WALNUT","price":4579.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/awaiting-image_ef8a7238-8390-41bc-9c85-a0e161f0e4c5.jpg?v=1777486339","url":"https:\/\/www.stoneaudio.co.uk\/products\/martin-logan-balanced-force-212-subwoofer","provider":"Stone Audio","version":"1.0","type":"link"}