Poly-Planar - MB-21 8-watt 2 1/2" VHF Remote Speaker
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Waterproof and Corrosion-Proof Marine Speaker
Designed for durability and optimal sound performance, the Poly-Planar MB-21 8-Watt VHF Remote Speaker is an excellent choice for enhancing marine communication systems. This fully waterproof and corrosion-proof speaker is built to withstand harsh marine environments, ensuring clear audio transmission for VHF radios. Its compact size and surface-mount design allow for flexible installation, making it an ideal addition to any boat or marine vessel.
Rugged Construction for Marine Environments
Built for reliability, the MB-21 features stainless steel grills, a sturdy plastic frame, and a polypropylene speaker cone, providing long-lasting resistance to saltwater and UV exposure. Additionally, its Teflon-coated wires enhance durability, reducing the risk of wear and tear over time.
Technical Specifications
- Peak Power Handling: 8 watts
- Speaker Impedance: 4 ohms
- Frequency Range: 1K to 10K Hz
Compact and Space-Saving Dimensions
- Overall Size: 2 15/16" x 2 3/4" x 1 5/16" (74mm x 69mm x 33mm)
Key Features
- Fully waterproof and corrosion-resistant construction
- High-quality stainless steel mounting bracket and grill
- Polypropylene speaker cone for enhanced sound clarity
- Teflon-coated wiring for added durability
- Compact and lightweight design for easy installation
- Comes with a 10-foot lead wire and mini-plug for quick connectivity
Variants Available
- MB21-B: Black finish
- MB21-W: White finish
With its robust design and excellent sound performance, the Poly-Planar MB-21 ensures reliable VHF communication for all marine applications.
Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.
Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.
Delivery and tracking
Deliveries are handled by trusted carriers such as USPS, UPS, FedEx, and DHL. Estimated arrival times appear at checkout and depend on your location and the service you choose. These are estimates and can be affected by customs or carrier disruptions. A shipping confirmation with a tracking link is emailed when your order ships, and tracking may take up to 24 hours to update. You can also view tracking in your account.
Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.
Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.
Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.
To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.
We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.
