





STX Audio SX682 6x8" 2-Way Coaxial Speakers
- Pair of 6x8-inch coaxial speakers
- 100W RMS per speaker
- 680W maximum power per pair
- 4-ohm speaker impedance
- Includes two matching grilles
Product Info
| Brand | STX AUDIO |
|---|---|
| Model / SKU | SX682 |
| UPC | 783501191889 |
| Availability | In stock and ready to quote |
The STX Audio SX682 is a pair of 6x8-inch 2-way coaxial car speakers made for replacing factory speakers or upgrading an existing vehicle audio system. Their common 6x8-inch format suits many front-door, rear-door, and rear-deck locations that use this speaker size. They provide a practical full-range solution when original speakers have become worn, weak, or distorted.
Each speaker is rated for 100 watts RMS at 4 ohms, for 200 watts RMS per pair. This power handling makes the pair suitable for use with a compatible aftermarket head unit or properly matched external amplification. The 92 dB sensitivity rating supports useful output from modestly powered systems when installation and power matching are handled correctly.
The SX682 uses a 2-way coaxial design that places the woofer and high-frequency driver together in each speaker. This layout helps simplify installation where there is limited room for separate component speakers and tweeters. Its specified 52 Hz to 20 kHz frequency response is intended to cover the main musical range for everyday listening.
For durability, the speakers combine black polypropylene cones with rubber edge surrounds. A 1-inch aluminum voice coil, 15 oz magnet, and black steel basket form the core of each speaker assembly. These materials are selected to support controlled cone movement and dependable use in automotive speaker locations.
The SX682 pair is a sensible fit for a balanced speaker refresh or as part of a larger car-audio upgrade. It can be used on its own as a factory-size replacement, or paired with compatible amplification for greater system output. Matching the speakers to the vehicle's mounting dimensions, wiring, and available power is important before installation.
Key Features
- 6x8-Inch Factory-Size Format: Fits many common vehicle speaker locations.
- 2-Way Coaxial Design: Combines full-range drivers in one assembly.
- 200W RMS Per Pair: Handles 100 watts RMS per speaker.
- 4-Ohm Impedance: Suits compatible factory and aftermarket systems.
- Polypropylene And Rubber Construction: Supports controlled cone movement and everyday durability.
- Included Protective Grilles: Two black grilles feature gold accent detailing.
Design & Installation
Each SX682 speaker uses a black polypropylene cone, rubber edge surround, aluminum voice coil, 15 oz magnet, and black steel basket. The included black grilles with gold accents provide a finished appearance for installations where the speakers are visible. The coaxial arrangement keeps the high-frequency driver integrated with the woofer for a compact speaker assembly.
Confirm that your vehicle accepts 6x8-inch speakers and verify available mounting clearance before purchase or installation. Use compatible wiring and observe speaker polarity for proper stereo imaging and bass response. For amplified systems, match the amplifier's output appropriately to the speakers' 4-ohm impedance and 100-watt RMS-per-speaker rating.
| Brand | STX Audio |
|---|---|
| Model | SX682 |
| UPC | 783501191889 |
| Series | Street Series |
| Product Type | Coaxial car speakers |
| Speaker Size | 6 x 8 in |
| Speaker Configuration | 2-way coaxial |
| Number of Speakers | 2 |
| RMS Power | 200W per pair |
| RMS Power Per Speaker | 100W |
| Maximum Power | 680W per pair |
| Impedance | 4 ohms |
| Sensitivity | 92 dB |
| Frequency Response | 52 Hz to 20 kHz |
| Resonant Frequency | 65 Hz |
| Cone Material | Black polypropylene |
| Surround Material | Rubber edge surround |
| Voice Coil Diameter | 1 in |
| Voice Coil Material | Aluminum |
| Magnet Weight | 15 oz |
| Basket Material | Black steel |
| Grille Color | Black |
| Grille Accent Color | Gold |
| Connection Type | Wired |
| Included Grilles | 2 |
| Package Contents | Two SX682 speakers and two matching grilles |
| Intended Mounting Locations | Front door, rear door, or rear deck |
This product uses a 6"x8" speaker size. Pick your vehicle to see the factory locations it fits.
Select your year, make, and model above.
Vehicle not listed? Contact us and we’ll check the fit for you.
Will these fit my vehicle?
The SX682 uses a 6x8-inch speaker format intended for many factory door and rear-deck locations. Confirm your vehicle's speaker opening, mounting depth, mounting points, and connector requirements before purchase.
How much power do these speakers handle?
The pair is rated at 200 watts RMS total, or 100 watts RMS per speaker. Maximum power handling is listed as 680 watts per pair.
Can I use these with a factory radio?
They are 4-ohm speakers and are described for compatible factory or aftermarket audio systems. Actual performance depends on the radio's available power and the vehicle's installation.
Do I need a separate tweeter?
No separate tweeter is required for the basic installation because each SX682 is a 2-way coaxial speaker. The woofer and high-frequency driver are integrated into each speaker.
What is included in the package?
The package includes two STX Audio SX682 speakers and two matching black grilles with gold accents. Wiring adapters, mounting hardware, and vehicle-specific brackets are not confirmed.




















