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The Soundstream SM Series represents a standout collection of pro audio speakers designed for precision, durability, and high-efficiency output. Tailored for car audio enthusiasts seeking clarity at volume, the SM line includes models like the SM-650PROC, SM-650C, and SM-800, built to deliver clean mid-range performance with eye-catching design options.
Whether you're building a full component system or upgrading your factory setup, the SM Series offers the flexibility, power, and aesthetic detail that modern audio systems demand.
The SM Series is a cornerstone in Soundstream's pro audio lineup, offering optimized clarity across mid-range frequencies. Each speaker features high-sensitivity voice coils, lightweight diaphragms, and tight tolerance construction to minimize distortion even at high volumes. These speakers are not just loud—they’re articulate.
With efficiency ratings as high as 96 dB and power handling up to 250 watts, the SM Series stands out for its ability to cut through road noise and cabin reflections, making them a top choice for serious sound systems.
Each model in the SM audio series includes customizable elements like interchangeable dust caps and tweeter rings in various colors—red, green, blue, and black. These features allow installers and users to coordinate speaker visuals with interior lighting or overall vehicle themes.
The SM-650PROC is a 6.5-inch pro audio component speaker that offers precise sound staging and high mid-frequency definition. It pairs well with dedicated tweeters and subwoofers in three-way setups. Its efficiency and response make it ideal for builds that demand clear vocals and instruments.
The SM-800 extends the mid-bass reach with a larger cone surface and 150W RMS power handling. It's perfect for car audio systems where dynamic range and low distortion are non-negotiable.
The SM-650C offers a balanced mix of performance and compact installation profile, making it a go-to option for doors, custom pods, or kick panel builds.
Key Technical Specifications
These specifications align the SM speaker line with high-demand, competitive car audio setups, ensuring maximum output from limited amplifier wattage.
The SM Series is compatible with most aftermarket head units and amplifiers. They integrate seamlessly into multi-amp setups and perform well as both front and rear mid-range solutions.
Pair them with a Soundstream 6.5 component speaker or 6x9 Soundstream setup for full system balance, ensuring every frequency band is well represented.
Due to their high sensitivity and strong mid-bass output, these speakers are often used in custom SPL builds where volume, clarity, and cosmetic customization are priorities.
The Soundstream SM Series is ideal for users looking to improve their mid-range response in custom car audio systems. They offer high efficiency, clean vocals, and flexibility for installations.
No, they are primarily mid-range drivers designed to handle frequencies between 150 Hz and 25 kHz. Pairing them with dedicated tweeters and subwoofers is recommended for full-range coverage.
The SM-650PROC includes pro-level design elements like custom dust caps, durable cones, and high RMS ratings, giving it both aesthetic appeal and powerful sound performance.
Yes, with appropriate mounting depth (about 3 inches), SM car audio components can be used to upgrade OEM systems, although amplifier support is recommended for optimal performance.
Yes. SM audio focuses on pro audio-level clarity and efficiency, while other Soundstream series may focus on full-range or budget-tier configurations.
While mainly for customization, the interchangeable dust caps are designed not to negatively impact performance. They allow you to match speaker visuals to your build.
