



Alpine S2-S68
S-Series 6"x8" 2-Way Coaxial Speakers
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Alpine S2-S68 S-Series 6"x8" Coaxial 2-Way Car Speakers
The Alpine S2-S68 speakers are part of Alpine's next-generation S-Series, delivering high-resolution audio performance in a 6"x8" coaxial design. Featuring a composite woofer cone made from polypropylene, glass fiber, and mica, along with a 1" cloth dome tweeter, these speakers offer clear, dynamic sound across a wide frequency range. The High-Amplitude Multi-Roll (HAMR) surround ensures accurate bass response, making them an excellent upgrade for factory-installed speakers.
Key Features | |
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Speaker Type | 2-Way Coaxial |
Woofer Material | Polypropylene/Glass Fiber/Mica Composite |
Tweeter Type | 1" Cloth Dome |
Surround Technology | High-Amplitude Multi-Roll (HAMR) |
Hi-Res Audio Certified | Yes (Up to 40kHz) |
Impedance | 4 Ohms |
Mounting Depth | 2.375" |
Grilles Included | No |
What’s in the Box |
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2 × Alpine S2-S68 6"x8" Coaxial Speakers |
2 × Bottom Mount Brackets |
2 × 6x8 Special Application Brackets |
2 × 12" Speaker Wires (Quick-Slides on One End, Bare Wire on Other) |
8 × 1-1/8" Screws |
8 × 3/8" Screws |
8 × Speed Clips |
8 × Flat Washers |
8 × Spacers |
2 × Adhesive-Backed Gaskets |
1 × Owner’s Manual |
1 × Warranty Information Sheet |
1 × Online Product Registration Information |
1 × Important Notice Sheet |
1 × Declaration of Conformity |
1 × Template and Specs on Box |
Technical Specifications | |
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Model Number | S2-S68 |
Speaker Size | 6"x8" |
Design | 2-Way Coaxial |
Power Handling (RMS) | 75W |
Power Handling (Peak) | 230W |
Frequency Response | 73Hz – 40kHz |
Sensitivity | 88dB |
Impedance | 4 Ohms |
Mounting Depth | 2.375" |
Cutout Dimensions | 5" x 7-3/16" |
Grilles Included | No |
Warranty | 1 Year |

FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.