{"product_id":"jl-audio-m7-marine-subwoofer-12-with-white-sport-grille-m7-12ib-s-gwgw-4-1778474939","title":"JL Audio® M7 Marine Subwoofer 12\\\" with White Sport Grille (M7-12IB-S-GwGw-4)","description":"M7 marine subwoofers are optimized for high-power, infinite baffle operation with stunning bass performance in open-air boating applications.\u003cbr\u003e\u003cdiv\u003e\n\u003ctable\u003e         \u003ctbody\u003e         \u003ctr class=\"title\"\u003e             \u003ctd colspan=\"2\" style=\"background: #fff; color: #000; border: 1px solid #ddd; border-width: 0px 0px 1px 0px; padding: 0px;\"\u003e                 \u003ch3\u003eGeneral\u003c\/h3\u003e             \u003c\/td\u003e         \u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e3 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eSizes\u003c\/th\u003e\n\u003ctd\u003e12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eColor\u003c\/th\u003e\n\u003ctd\u003eWhite Classic, White Sport or Titanium Sport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003ePhysical dimensions (Diameter)\u003c\/th\u003e\n\u003ctd\u003e14\" (356 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003ePhysical dimensions (Depth)\u003c\/th\u003e\n\u003ctd\u003e12\" (Classic): 9.39\" (239 mm)\u003cbr\u003e12\" (Sport): 9.42\" (240 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp\u003e25.35 lbs (11.5 kg)\u003c\/p\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eSpeaker type\u003c\/th\u003e\n\u003ctd\u003eInfinite Baffle Subwoofer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eContinuous power handling (RMS)\u003c\/th\u003e\n\u003ctd\u003e600 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eSensitivity (SPL @ 1 W\/1 m)\u003c\/th\u003e\n\u003ctd\u003e86.7 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eNominal impedance\u003c\/th\u003e\n\u003ctd\u003e4 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eRecommended amplifier power (RMS)\u003c\/th\u003e\n\u003ctd\u003e200-600 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eLED lighting\u003c\/th\u003e\n\u003ctd\u003eyes - Transflective™ (selected Sport models only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eLED supply voltage\u003c\/th\u003e\n\u003ctd\u003e10-14.4 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eLED Load Current @ 14.4 VDC (max)\u003c\/th\u003e\n\u003ctd\u003e648 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eVoice coil diameter\u003c\/th\u003e\n\u003ctd\u003e4\" (102 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eCone material\u003c\/th\u003e\n\u003ctd\u003eInjection-molded, mica-filled polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e         \u003ctbody\u003e         \u003ctr class=\"title\"\u003e             \u003ctd colspan=\"2\" style=\"background: #fff; color: #000; border: 1px solid #ddd; border-width: 0px 0px 1px 0px; padding: 0px;\"\u003e                 \u003ch3\u003eNetworking \u0026amp; Connections\u003c\/h3\u003e             \u003c\/td\u003e         \u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eSpeaker connections\u003c\/th\u003e\n\u003ctd\u003eSpade Connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eLED connection\u003c\/th\u003e\n\u003ctd\u003eFlying Lead with 4-conductor 20 AWG wire (selected Sport models only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e         \u003ctbody\u003e         \u003ctr class=\"title\"\u003e             \u003ctd colspan=\"2\" style=\"background: #fff; color: #000; border: 1px solid #ddd; border-width: 0px 0px 1px 0px; padding: 0px;\"\u003e                 \u003ch3\u003eMounting Dimensions\u003c\/h3\u003e             \u003c\/td\u003e         \u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eMounting depth clearance\u003c\/th\u003e\n\u003ctd\u003e7.94\" (202 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eFrontal grille protrusion\u003c\/th\u003e\n\u003ctd\u003e12\" (Classic): 1.45\" (37 mm)\u003cbr\u003e12\" (Sport): 1.48\" (38 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eMounting hole\u003c\/th\u003e\n\u003ctd\u003e12.0625\" (306 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eBolt hole circle\u003c\/th\u003e\n\u003ctd\u003e12.813\" (325 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eDriver displacement\u003c\/th\u003e\n\u003ctd\u003e0.148 cu ft (4.19 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e         \u003ctbody\u003e         \u003ctr class=\"title\"\u003e             \u003ctd colspan=\"2\" style=\"background: #fff; color: #000; border: 1px solid #ddd; border-width: 0px 0px 1px 0px; padding: 0px;\"\u003e                 \u003ch3\u003eParameters\u003c\/h3\u003e             \u003c\/td\u003e         \u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eFree Air Resonance (FS)\u003c\/th\u003e\n\u003ctd\u003e35.34 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eElectrical “Q” (Qes)\u003c\/th\u003e\n\u003ctd\u003e0.856\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eMechanical “Q” (Qms)\u003c\/th\u003e\n\u003ctd\u003e10.389\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eTotal “Q” (Qts)\u003c\/th\u003e\n\u003ctd\u003e0.791\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eEquivalent Compliance (Vas)\u003c\/th\u003e\n\u003ctd\u003e1.99 cu ft (56.35 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eOne-way linear excursion (Xmax; specs are derived via one-way voice coil overhang method with no correction factors applied)\u003c\/th\u003e\n\u003ctd\u003e0.73\" (18.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eReference Efficiency (NO)\u003c\/th\u003e\n\u003ctd\u003e0.28%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eEffective piston area (SD)\u003c\/th\u003e\n\u003ctd\u003e80.54 in² (0.052 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eDC resistance (RE)\u003c\/th\u003e\n\u003ctd\u003e3.543 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e         \u003ctbody\u003e         \u003ctr class=\"title\"\u003e             \u003ctd colspan=\"2\" style=\"background: #fff; color: #000; border: 1px solid #ddd; border-width: 0px 0px 1px 0px; padding: 0px;\"\u003e                 \u003ch3\u003eSealed Enclosure Specifications\u003c\/h3\u003e             \u003c\/td\u003e         \u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eWall thickness\u003c\/th\u003e\n\u003ctd\u003e0.75\" (19 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eFront baffle thickness\u003c\/th\u003e\n\u003ctd\u003e0.75\" (19 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eVolume (net int.)\u003c\/th\u003e\n\u003ctd\u003e3.00 cu ft (85 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eExternal width (W)\u003c\/th\u003e\n\u003ctd\u003e24\" (610 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eExternal height (H)\u003c\/th\u003e\n\u003ctd\u003e18.5\" (470 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eExternal depth (D)\u003c\/th\u003e\n\u003ctd\u003e15.75\" (400 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003e-3 dB cutoff frequency (F3)\u003c\/th\u003e\n\u003ctd\u003e35.52 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eSystem resonance (FC)\u003c\/th\u003e\n\u003ctd\u003e45.58 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eSystem Q at resonance (QTC)\u003c\/th\u003e\n\u003ctd\u003e1.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e         \u003ctbody\u003e         \u003ctr class=\"title\"\u003e             \u003ctd colspan=\"2\" style=\"background: #fff; color: #000; border: 1px solid #ddd; border-width: 0px 0px 1px 0px; padding: 0px;\"\u003e                 \u003ch3\u003ePorted Enclosure Specifications\u003c\/h3\u003e             \u003c\/td\u003e         \u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eWall thickness\u003c\/th\u003e\n\u003ctd\u003e0.75\" (19 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eFront baffle thickness\u003c\/th\u003e\n\u003ctd\u003e0.75\" (19 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eVolume (net int.)\u003c\/th\u003e\n\u003ctd\u003e5.00 cu ft (141.6 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eExternal width (W)\u003c\/th\u003e\n\u003ctd\u003e30\" (762 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eExternal height (H)\u003c\/th\u003e\n\u003ctd\u003e18.5\" (470 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eExternal depth (D)\u003c\/th\u003e\n\u003ctd\u003e20.5\" (521 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eInternal port diameter (ID)\u003c\/th\u003e\n\u003ctd\u003e5\" (127 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003ePort length (L)\u003c\/th\u003e\n\u003ctd\u003e13.5\" (343 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eTuning frequency (FB)\u003c\/th\u003e\n\u003ctd\u003e25 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003e-3 dB cutoff frequency (F3)\u003c\/th\u003e\n\u003ctd\u003e20.96 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e         \u003ctbody\u003e         \u003ctr class=\"title\"\u003e             \u003ctd colspan=\"2\" style=\"background: #fff; color: #000; border: 1px solid #ddd; border-width: 0px 0px 1px 0px; padding: 0px;\"\u003e                 \u003ch3\u003eAdditional\u003c\/h3\u003e             \u003c\/td\u003e         \u003c\/tr\u003e\n\u003ctr\u003e             \u003cth scope=\"row\" style=\"background-color: #fff; font-weight: 300;\"\u003eAdditional\u003c\/th\u003e\n\u003ctd\u003e\n\u003cp class=\"disclaimer-block\"\u003eThe enclosure recommendations listed above are external dimensions which assume the use of 0.75\" (19 mm) thick material. If you are using 0.625\" (16 mm) thick material, subtract 0.25\" (6.5 mm) from each dimension. Do not use any material with a thickness of less than 0.625\" (16 mm) as this may compromise the rigidity of the enclosure. All enclosure volumes listed above are net internal volumes. Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into account. When using multiples in a common enclosure you will need to recalculate the enclosure and port dimensions. For assistance please contact your authorized JL Audio dealer or JL Audio Technical Support. We recommend the use of this in a bi-amplified system using high-quality satellites and a high-quality amplifier. We do not recommend the use of this with a passive crossover (coil), as this type of device will adversely affect performance.\u003c\/p\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\u003cstyle\u003etable td.yes:before {     content: \"\";     width: 100%;     height: 11px;     display: inline-block;     background: url(data:image\/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA2MCA0OC43NSI+Cjxwb2x5Z29uIHBvaW50cz0iNDkuMjgsMCAyMSwyNy43OSAxMC41MiwxNy40OSAwLDI4LjAxIDIxLDQ4Ljc1IDYwLDEwLjI0ICIgc3R5bGU9ImZpbGw6IzAwMCIgLz4KPC9zdmc+) 0 4px no-repeat;     background-position: center;     margin-top: 5px; }\u003c\/style\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":49130633560299,"sku":"1778474939","price":118.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/6751\/5627\/files\/1778474939_1.jpg?v=1785491274","url":"https:\/\/garminkit.com\/products\/jl-audio-m7-marine-subwoofer-12-with-white-sport-grille-m7-12ib-s-gwgw-4-1778474939","provider":"Garmin","version":"1.0","type":"link"}