Polk Audio MM 1242 SVC 12" MM1 Series 420W RMS | 1260W Max Car/Marine Subwoofer 4-Ohm SVC

Polk Audio MM 1242 SVC 12" MM1 Series 420W RMS | 1260W Max Car/Marine Subwoofer 4-Ohm SVCPolk Audio MM1242 SVC 12 Single 4 Ultra Marine Subwoofer 420 W RMS 1,260 W Peak Polks MM1242 SVC delivers rugged marine certified performance in a 12 single 4 ohm subwoofer. With a titanium plated composite cone, Santoprene surround, and fiberglass reinforced ABS basket, its IP56 rated to withstand water, UV, and salt. Perfect for boats, trucks, or cars needing strong, reliable low frequency output. Key Features Single unit Power Handling (RMS): 420 W

Polk Audio MM1242 SVC – 12″ Single 4 Ω Ultra-Marine Subwoofer – 420 W RMS / 1,260 W Peak

Polk’s MM1242 SVC delivers rugged marine-certified performance in a 12″ single 4-ohm subwoofer. With a titanium-plated composite cone, Santoprene surround, and fiberglass-reinforced ABS basket, it’s IP56 rated to withstand water, UV, and salt. Perfect for boats, trucks, or cars needing strong, reliable low-frequency output.

Key Features

• Single unit
• Power Handling (RMS): 420 W
• Power Handling (Peak): 1,260 W
• Impedance: Single 4 Ω voice coil (SVC)
• Sensitivity: 87 dB @ 1 W / 1 m
• Frequency Response: 26 – 200 Hz
• Top Mount Depth: ~5.34″
• Cutout Diameter: ~11.1″
• Titanium-plated composite cone with Santoprene surround
• Fiberglass-reinforced ABS basket with drainage weep holes
• Ultra-Marine Certified (IP56): waterproof surrounds, UV & salt-fog tested
• Recommended sealed box: 1.5 – 2.0 cu ft; ported box: 1.75 – 2.5 cu ft