Description
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
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
Shipping & Delivery
Free shipping applies to orders $50 and over shipped within the 48 Contiguous U.S. States. Most orders ship the same or next business day. Tracking is included and will be updated upon shipment.
Additional shipping fees are required for all other locations (including but not limited to): PO Boxes, APO/FPO address, AK, HI, PR, Guam, Canada, and other countries outside the USA
We will make every attempt to process and ship orders within 2 business days of your cleared payment. We will contact you, should there be a problem or delay with your order. Please allow proper delivery time for your package to arrive.
Orders via UPS Ground arrive within 2-6 business days. Smaller or lighter weight items typically ship via USPS First Class or USPS Priority Mail.
