Soundstream RS.57 – Reference Series 5x7" 2-Way Slim Coaxial Car Speakers, 300W Max, OEM Fit with Dome Tweeter & Polypropylene Cone

The Soundstream RS.57 5x7" Coaxial Speakers offer a perfect blend of performance and compatibility for those upgrading their factory audio system. Built as part of the Reference Series, these speakers deliver clean, reliable sound in a space-saving coaxial format—ideal for plug-and-play installation in OEM 5x7 speaker locations without modification. From tight door panels to rear decks, the RS.57 brings Soundstream’s signature clarity and efficiency to compact cars, trucks, and daily drivers.

• [2-WAY COAXIAL DESIGN – MID-HIGH BALANCE IN ONE UNIT] Each speaker combines a durable polypropylene cone woofer for rich mids and a 1” dome tweeter for crisp highs, providing clear and consistent full-range audio across genres. No need for external crossovers—just clean sound from one compact speaker pair.
• [300W PEAK POWER – HIGH OUTPUT, FACTORY READY] With 150W RMS (combined) and 300W peak power, the RS.57 handles both stock head units and entry-level amplifiers with ease, delivering clean sound and minimal distortion, even at higher volumes.
• [SLIM-MOUNT PROFILE – FITS TIGHT SPACES EASILY] With a mounting depth of just 2.25”, these speakers are optimized for shallow locations. Whether you’re upgrading front doors, rear decks, or side panels, they’ll fit in place without cutting or modifying brackets.
• [4 OHM IMPEDANCE – UNIVERSAL SYSTEM COMPATIBILITY] Standard 4-ohm resistance makes these speakers a seamless drop-in for most factory and aftermarket systems—just wire them in and go.
• [GRILLES INCLUDED—STYLE & PROTECTION] The included protective grilles are perfect for installs where speakers are exposed. They ensure your setup stays safe and looks sharp, whether in rear decks or custom builds.

Ideal For:

• OEM speaker replacement in Ford, Mazda, and Lincoln vehicles
• Door and rear-deck speaker upgrades with factory-sized 5x7 cutouts
• Compact installs needing slim-mount solutions
• Budget-conscious audio enhancements
• Daily drivers seeking improved mids and highs without full systems

If you're after a clean, simple, and effective car audio upgrade, the Soundstream RS.57 5x7” Reference Series Speakers bring more clarity, volume, and quality to your ride, without complicating your install. Whether replacing a blown factory speaker or improving your daily driver, this speaker set offers great sound in a direct-fit form.