




Alpine S2-S40C
S-Series 4" Component Speaker Set
Enjoy a complimentary $75 Installation credit on all Online Orders. Limit one per customer. Terms and Conditions apply.
Need Help?
Alpine S2-S40C S-Series 4" 2-Way Component Speaker System
The Alpine S2-S40C is a Hi-Res Audio Certified 4" 2-way component speaker system designed to deliver high-fidelity sound reproduction. Featuring a polypropylene, glass fiber, and mica composite woofer cone, along with a 1" silk dome tweeter, this system ensures clear vocals and detailed high frequencies. The High-Amplitude Multi-Roll (HAMR) surround allows for maximum cone excursion, resulting in powerful bass response. Its lightweight design ensures high output with low distortion, making it an excellent upgrade for enhancing your vehicle's audio performance.
Key Features | |
---|---|
Speaker Type | 2-Way Component |
Hi-Res Audio Certified | Yes (Up to 40kHz) |
Tweeter | 1" Silk Dome with Threaded Removable Housing |
Grilles Included | No |
What’s in the Box |
---|
2 × 4" Woofers |
2 × 1" Tweeters with In-Line Crossovers |
2 × 4x6 Adapter Brackets |
2 × Flush Mount Housings |
1 × Mounting Hardware |
1 × Owner’s Manual |
Technical Specifications | |
---|---|
Power Handling (RMS) | 45W |
Power Handling (Peak) | 140W |
Frequency Response | 97Hz – 40kHz |
Sensitivity | 86dB |
Impedance | 4 Ohms |
Top-Mount Depth | 1.75" |
Cutout Diameter | 3.69" |
Mounting Height | 0.28" |
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.