Product overview
Newly redesigned and Hi-Res Audio Certified , the Next-Generation S-Series S2-S40C 10cm (4”) Component Speakers offer a new standard in entry-level sound performance.
We packed supreme capability into these speakers by using h ighly effective materials and proprietary design elements. The lightweight woofer cone, crafted from a combination of polypropylene, glass fiber, and mica materials, serves up the essential high output / low distortion sound required for High-Res Audio performance. Alpine S-Series speakers feature increased magnet sizes for more power handling and best mid-bass performance in their category.
The woofer's High Amplitude Multi-Roll (HAMR) surround brings out the best in bass by allowing maximum cone movement. A 2cm (3/4") dome tweeter serves up all the high-frequency detail you've been missing with your factory speakers.
All speakers in the S-Series line have a wide vehicle fitment range and include several adapters and spacers. Using in-line crossovers, these speakers can be installed quick and easy even at home.
Alpine S-Series speakers are available in coaxial and component configurations and come in a variety of different sizes, such as 20cm, 16,5cm, 13cm, 10cm, 6×9 inches and 6×8 inches.
The S-Series sound system line truly is the Music Lover’s Starter Pack, bringing amazing sound quality, exciting bass and even Hi-Res Audio playback into the customer’s vehicle at a very affordable price point. The S-Series speakers are available in 9 different configurations.
Using “trickle-down” technology, inspired design, and performance cues from the Ultra-High-Resolution AlpineF#1Status system, the Next-Generation Alpine S-Series Speakers are now Hi-Res Audio Certified and able to reproduce up to 40kHz frequency response. This new benchmark in sound quality elevates the Next-Gen S-Series Speakers resulting in a more accurate and natural sound at an entry-level price point.
Key features
- 2cm (¾“) Component Tweeters with Swivel Housing
- Hi-Res Audio Certified (up to 40kHz)
- Poly Propylene, Glass Fiber, and Mica Cone Material
- Lightweight Design with High Output and Low Distortion
- High-Amplitude Multi-Roll (HAMR) Surround
Technical specifications
| General | |
|---|---|
| Woofer Size | 10cm (4”) |
| Power Handling | |
| Peak Power | 140 Watts |
| RMS Power | 45 Watts |
| Dimensions Woofer | |
| Cutout Diameter (flush-mount) | 93.6 mm |
| Mounting Depth | 43.0 mm |
| Mounting Height | 6.6 mm |
| Magnet | 75.0 mm |
| Dimensions Tweeter | |
| Cutout Diameter (flush-mount) | 51 mm |
| Mounting Depth | 17.6 mm |
| Mounting Height | 7.6 mm |
| General | |
| Frequency Range | 100 Hz – 40 kHz (Hi-Res Audio Certified) |
| Impedance | 4 Ohms |
| Sensitivity | 85 dB/W |
What you are ordering
The exact Alpine model shown above, SKU S2-S40C. Confirm vehicle compatibility for installation kits, interfaces and vehicle-specific systems before checkout.
Product information verified against the official Alpine product page.



