The JL Audio M3-10IB-S-GM-4 is a genuine 10-inch marine infinite-baffle (free-air) subwoofer designed to deliver smooth, punchy bass in boats where space for a large enclosure is limited. Finished with a Gunmetal Sport grille, it’s purpose-built for harsh marine environments and moderate-power systems.

• JL Audio model: M3-10IB-S-GM-4 (Sport grille, Gunmetal)
• Manufacturer/OEM ref: 010-03071-00
• TMP SKU: JLM3-10IB-S-GM-4

Key specifications

• Size: 10 in (250 mm)
• Power handling: 175 W RMS (recommended amplifier range: 50–175 W)
• Impedance: 4 Ω (single voice coil)
• Installation type: Infinite baffle / free-air (preferred)
• Also suitable for sealed enclosures: 2.0 cu ft minimum, 2.5 cu ft optimum
• Sensitivity: 87.23 dB (1W/1m)

Mounting dimensions (confirm before cutting)

• Overall diameter: 10.75 in (273 mm)
• Cutout (mounting hole) diameter: 8.875 in (225 mm)
• Mounting depth: 5.12 in (130 mm)

Construction highlights

• Centrex® polymer basket/grille with stainless steel back plate for corrosion resistance
• Injection-molded, mica-filled polypropylene cone with synthetic rubber surround
• Gold-plated, marine-grade brass binding posts

Before ordering: confirm ratings, specification and fitment before ordering. Match amplifier power to the recommended range and verify cutout/depth clearance for your intended mounting surface.