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Balanced 3-Way Full-Range Sound Performance
The SoundXtreme ST680 5x7/6x8 coaxial speakers are designed to deliver balanced full-range audio with enhanced clarity across bass, midrange, and high frequencies. The 3-way design separates sound reproduction for more detailed and immersive listening, making vocals clearer and instrument separation more defined.
With a peak power handling of 350W per pair, these speakers provide strong output for users looking to upgrade from weak factory systems to a more dynamic and engaging sound experience.
Durable Construction & Efficient Audio Delivery
Built with a polypropylene mid-woofer cone and polyester foam surround, the ST680 is engineered for durability and consistent performance over time. The materials are selected to reduce distortion while maintaining smooth cone movement for better low- and mid-frequency response.
The balanced PEI dome tweeter ensures crisp, detailed high frequencies without harshness, while the extended voice coil design improves efficiency and overall sound output.
Easy Upgrade Fitment & Everyday Usability
Designed for 5x7 and 6x8-inch factory replacement applications, the ST680 speakers are ideal for upgrading stock door or rear deck speakers in many vehicles. Their shallow mounting depth allows for easier installation in tight factory spaces.
With 4-ohm impedance and moderate power requirements, they integrate smoothly with most factory head units or aftermarket stereos without requiring a high-powered amplifier.
Highlights
- 3-way coaxial speaker design for full-range audio separation
- Compatible with 5x7 and 6x8 factory speaker openings
- 350W peak power handling per pair
- 10–75W RMS recommended power range per channel
- 4-ohm impedance for broad system compatibility
- 90dB sensitivity for efficient sound output
- Polypropylene mid-woofer cone for durability and clarity
- Polyester foam surround for improved bass response
- PEI balanced dome tweeter for crisp high frequencies
- Frequency response range: 45Hz – 20kHz
- Extended voice coil (EVC) technology for improved performance
- Shallow top-mount depth for easier installation
Package Contents
- 2 × SoundXtreme ST680 5x7/6x8" 3-Way Coaxial Speakers (Pair)
- 1 × Speaker Wire Set
- 1 × Mounting Screw Kit
- 1 × User Installation Manual