About the Alpine S2-S40

Product highlights:
- 4" 2-way speakers
- polypropylene/glass fiber/mica woofer cone with specialized rubber surround
- 3/4" cloth dome tweeter
- handles up to 45 watts RMS (140 watts peak power)
- frequency response: 100-40,000 Hz
- sensitivity: 86 dB
- mounting depth: 1.72"
- grilles not included
- Hi-Res Audio Certified
- warranty: 1 year
- MFR # S2-S40
- Item # 500S2S40
- California customers: Please click here for your Proposition 65 WARNING.
What's in the box:
- Two 2-way speakers
- Two 4x6 Adapter brackets
- Two 12" Lengths of speaker wire (each has quick-slides on one end and bare wire on the other)
- Eight 3/4" Screws
- Ten 5/16" Screws
- Ten 1/4" Screws
- 10 Speed clips
- 10 Spacers
- 2 Adhesive backed gaskets
- Warranty information
- On-line product registration information
- Important Notice sheet
- Declaration of conformity
- Template and specs on box
More details on the Alpine S2-S40

Features & specs
General | ||
---|---|---|
Speaker Size | 4 | |
Driver Design | 2-way | |
Woofer Design | Cone | |
Woofer Material | Polypropylene/Glass Fiber/Mica | |
Woofer Surround | Rubber | |
Midrange Design | --- | |
Midrange Material | --- | |
Tweeter Design | 0.8" Dome | |
Tweeter Material | Cloth | |
Super Tweeter Design | --- | |
Super Tweeter Material | --- | |
Impedance (Ohms) | 4 | |
Weather-resistant | No | |
Grilles Included | No | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year | |
Specifications | ||
Sensitivity (1W at 1 meter) | 86 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 100 - 40k Hz | |
Maximum RMS Wattage | 45 | |
Peak Power Handling (Watts) | 140 | |
Top-mount Depth (Inches) | 1 3/4 | |
Bottom-mount Depth (Inches) | N/A | |
Cutout Diameter or Length (inches) | 3 11/16 | |
Mounting Height (Inches) | 0.505 | |
Frame Width | 4 | |
Frame Length | 4 |
Product Research
Features
4/2 Hole Compatibility: The speakers' mounting tabs can be removed, allowing installation in 4-hole or 2-hole applications. Please enter your vehicle information to confirm fit.
4x6 Compatibility: The speakers include adapter brackets to allow mounting them in factory 4x6 locations.
No Grilles: No grilles are included with these speakers.
The Alpine S2-S40 replaces these items:
- carbon fiber-reinforced plastic woofer cone with specialized rubber surround
- 3/4" silk dome tweeter
- handles up to 45 watts RMS (140 watts peak power)
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Customer Q&A
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Outstanding speakers. I used this to replace the OE dashboard midrange speakers on my 2022 Lexus NX450H+. The OE speakers were dull, lifeless and muddy sounding. These Alpine speakers really bring out the crystal clear vocals and crisp high frequencies. Highly recommended.
Danilo from Everett, WA