PQN ECO504BK 5-Inch Ultra Slim Waterproof Marine Speakers (Pair)

PQN

<h3>About PQN Audio</h3><p><strong>PQN Audio</strong>, a brand of PQN Enterprises, Inc., has been on a mission since 2005 to prove that great sound and harsh environments can coexist. Headquartered in Ventura, California, the company has carved out a well-earned reputation as a go-to source for waterproof audio products designed to perform where ordinary speakers would fail — on boats, in hot tubs, inside RVs, on golf carts, and anywhere else the elements are part of the equation.</p><p>What sets PQN Audio apart from the broader consumer audio market is their singular focus on ruggedness and reliability without compromising sound quality. Their engineering philosophy centers on building products that survive heat, humidity, UV exposure, and chemical exposure — the kind of punishment that ends the life of a typical indoor speaker within a season of outdoor use. Whether you need audio for a float spa, a camper ceiling, or the swim platform of a houseboat, PQN has engineered solutions specifically for those environments.</p><h3>Waterproof Speakers Built for Real-World Conditions</h3><p>PQN&apos;s <a href="/200457-speakers-pqn-11177">waterproof speakers</a> are the heart of the brand&apos;s lineup. The ECO Series of ultra-slim marine speakers features mounting depths of under one inch, making them ideal for restricted-space installations in RV walls, cabinetry, and marine applications where standard speakers simply won&apos;t fit. These speakers are IP65-rated for waterproofing and feature PQN&apos;s exclusive Uni-Cone construction, engineered for long-term durability in humid and chemically harsh environments. UV resistance and chemical resistance are standard, not optional extras.</p><p>Beyond the ECO Series, PQN&apos;s SPA Series <a href="/11177-pqn-speaker-1319">speakers</a> take a different approach — using a threaded thru-wall body design that allows for single-hole installation. Products like the SPA15, SPA24, and SPA34CX are trusted replacements in many OEM hot tub installations and serve equally well on boats, ATVs, motorcycles, and saunas. The SpaBEX and SpaTFX premium audio transducers represent some of the most innovative products in the lineup, allowing audio to be transmitted through surfaces without any visible speaker cutout at all — the transducer mounts to the back of a panel, and the surface itself becomes the speaker.</p><h3>Marine-Grade Amplification</h3><p>PQN&apos;s commitment to waterproof audio extends to their <a href="/1259-audio-amplifier-pqn-11177">audio amplifier</a> lineup. Models like the BTA-AC30-2C are IPX6-rated Bluetooth amplifiers designed to work in wet environments — ideal for pairing with PQN&apos;s speaker and transducer systems in hot tubs, float tanks, and marine installs. Some amplifier kits bundle directly with transducers, providing a complete audio solution out of the box and eliminating the guesswork of component compatibility.</p><h3>Who PQN Audio Is For</h3><p>PQN Audio products are popular with boaters, RV enthusiasts, hot tub owners, spa manufacturers, and anyone who has ever wrestled with replacing a waterlogged, sun-faded speaker in a demanding outdoor environment. The brand also supplies OEM and custom product applications, making their components common in factory installations across camper and spa brands. For the do-it-yourself crowd, PQN offers complete DIY kits for float spas, watercraft, and campers — giving enthusiasts everything they need to install quality audio without professional help.</p>