Part Number 010-03066-00 M3 7.7-inch Marine Coaxial Speakers (70 W, 4 Ω) - Gray Metallic Sport Classic Grille Purpose-engineered and built for real marine duty, M3 coaxial systems deliver excellent performance at a more affordable price than our maximum-performance M6 models. The oversized 7.7-inch design of the M3-770X results in increased efficiency (more output for a given amount of power). This gives them the ability to play louder and cleaner at high volumes than smaller speakers. The woofer design is optimized to operate with a large volume of air behind it (at least 2 cu. ft. / 57 l). Operating this coaxial system in less space will compromise its low frequency performance. A 0.75-inch pure silk dome tweeter, specially treated to withstand the marine environment, handles the high-frequency duties. Silk has been chosen for its lightness, excellent damping properties and smooth response characteristics. Although M3-770X Coaxial Systems can be used with as little as 20 W per channel, for best audio performance we recommend amplifiers capable of between 75-100 W of continuous power per channel. Sold as a pair. General Size 7.7" Color Gray Sport Physical dimensions (Diameter) 7.7": (Classic/Sport): 7.70" (196 mm) Physical dimensions (Depth) 7.7": (Sport): 4.27" (108 mm) Speaker type Coaxial Continuous power handling (RMS) 7.7": 70 W Sensitivity (SPL @ 1 W/1 m) 7.7": 90.5 dB Frequency response (+/- 3 dB) 7.7": 45Hz-25 kHz Nominal impedance 4 Ω Recommended amplifier power (RMS) 7.7": 20-140 W/Channel LED lighting yes - RGB (selected Sport models only) LED supply voltage 10-14.4 VDC LED Load Current @ 14.4 VDC (max) 108 mA Cone material Injection-molded, mica-filled polypropylene Tweeter type Silk Dome Tweeter size 0.75" (19 mm) Warranty 3 years Connections Speaker connections Spade Connectors LED connection Flying Lead with 4-conductor 22 AWG wire (selected Sport models only) Mounting Dimensions Mounting depth clearance 7.7": (Sport): 3.17" (81 mm) Frontal grille protrusion 7.7" (Sport): 1.10" (28 mm) Bolt hole circle 7.7": 6.92" (176 mm) Why buy JL Audio from MCOR Automotive Authorized JL Audio / Garmin dealer with over 22 years in business. We install and use this gear every day, so our recommendations come from real-world results. Pre-sale help if you’re unsure what fits your vehicle, boat or system goals. Support after the sale if you run into questions on wiring, setup or matching gear. Fitment & Installation Help Need help confirming fitment or installation parts? Use our Fit Guide or contact us through the chat button before ordering. Authorized Retailer & Warranty MCOR Automotive is an authorized JL Audio / Garmin retailer. Products purchased from MCOR include applicable manufacturer warranty coverage when installed and used according to manufacturer guidelines.
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