Plan Your Build with SMS Car Audio
Get the right product for your vehicle, audio goals, and installation needs before purchase.
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Description
ARC Audio RS 4.0 4-Inch Midrange Speakers - Matched Pair
The ARC Audio RS 4.0 sits in the center of the RS midrange lineup, offering a balance of output, detail, installation flexibility, and low-frequency reach for high-end active audio systems.
At SMS Car Audio, the RS 4.0 is a strong choice for premium 2-way or 3-way active systems where the install has enough space for a larger midrange but still needs tight imaging, clean vocals, and smooth system integration.
Key Features
- 4.0-inch RS Series raw midrange driver pair.
- Designed for elite-level 2-way and 3-way active systems.
- Deeper low-frequency reach than the RS 3.0 for more flexible crossover planning.
- Compact design with a shallow mounting depth for custom and OEM-style locations.
- Hard-pressed composite papyrus cone for light weight, stiffness, and natural damping.
- Low-damping rubber surround and cast aluminum basket.
- High-flux neodymium motor with integrated shorting ring.
- High-temp CCAW voice coil on a non-conductive former.
- Sold as matched pairs for left/right consistency.
Install Notes
- Works well in A-pillars, kick panels, custom dash locations, doors, and premium factory speaker locations.
- Useful when the tuning goal requires a lower midrange crossover point than a smaller 3-inch driver would normally support.
- Best used with DSP crossover setup, time alignment, level matching, and system tuning.
SMS System Planning Notes
The RS 4.0 should be matched to the vehicle, speaker location, tweeter/midbass selection, DSP amplifier or processor, and tuning goal. Final quotes may include installation labor, fabrication, wiring, DSP tuning, accessories, and vehicle-specific parts.