Polk Audio MM 842 SVC 8" MM1 Series 300W RMS | 900W Max Car/Marine Subwoofer 4-Ohm SVC

Polk Audio MM 842 SVC 8" MM1 Series 300W RMS | 900W Max Car/Marine Subwoofer 4-Ohm SVCPolk Audio MM842 SVC 8 Single 4 Ultra Marine Subwoofer 300 W RMS 900 W Peak The Polk MM842 SVC is an 8 single 4 ohm marine certified subwoofer designed for compact, rugged installs. Rated at 300 W RMS 900 W Peak, it uses a titanium plated composite cone, Santoprene surround, and fiberglass reinforced ABS basket. With IP56 Ultra Marine certification, it resists water, UV, and salt, making it ideal for boats, motorcycles, powersports, or space conscious

Polk Audio MM842 SVC – 8″ Single 4 Ω Ultra-Marine Subwoofer – 300 W RMS / 900 W Peak

The Polk MM842 SVC is an 8″ single 4-ohm marine-certified subwoofer designed for compact, rugged installs. Rated at 300 W RMS / 900 W Peak, it uses a titanium-plated composite cone, Santoprene surround, and fiberglass-reinforced ABS basket. With IP56 Ultra-Marine certification, it resists water, UV, and salt, making it ideal for boats, motorcycles, powersports, or space-conscious car audio systems.

Key Features

• Single unit
• Power Handling (RMS): 300 W
• Power Handling (Peak): 900 W
• Impedance: Single 4 Ω voice coil (SVC)
• Sensitivity: 84 dB @ 1 W / 1 m
• Frequency Response: 30 – 200 Hz
• Top Mount Depth: ~4.76″
• Cutout Diameter: ~7.2″
• 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: 0.35 – 0.85 cu ft; ported box: 0.35 – 0.85 cu ft