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Description

Alpine S2-S40

The Alpine S2‑S40 is a 4″ (10 cm) coaxial 2‑way speaker set from Alpine’s Next‑Generation S‑Series. It’s Hi‑Res Audio certified (up to ~40 kHz) and designed to bring high‑quality sound to compact speaker locations. Key specifications: 45 W RMS / 140 W peak power handling; frequency response approx. 97 Hz to 40 kHz; sensitivity ~86 dB; impedance 4 Ω. Features include a polypropylene/glass‑fiber/mica cone material for lightweight yet strong output, and Alpine’s HAMR (High‑Amplitude Multi‑Roll) surround technology for greater cone excursion and dynamic bass response.


Specifications

Features
Specification Details
Certification Hi-Res Audio Certified (Up to 40kHz)
Cone Material Poly Propylene, Glass Fiber, and Mica
Design Lightweight Design with High Output and Low Distortion
Surround High-Amplitude Multi-Roll (H.A.M.R.) Surround
Tweeters Integrated 3/4” Tweeters (Coaxial)

Tech Specs
Specification Details
Woofer Size 4”
Tweeter Size 3/4” (Coaxial)
Power Handling 45W RMS / 140W Peak
Frequency Response 97Hz – 40kHz (Hi-Res)
Sensitivity 86dB

 


About The Product

Hi-Res Certified

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.


Clean, Accurate Audio

Crafted with a unique combination of Polypropylene, Glass Fiber, and Mica Cone materials, the S2-S40 is designed for lightweight construction, high output, and low distortion, giving you a clean and accurate audio experience.

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Questions and Answers

Q1: What is the power handling of the S2‑S40?
A1: It is rated at 45 W RMS and 140 W peak.
Q2: What frequency response does the S2‑S40 support?
A2: It supports approximately 97 Hz to 40 kHz (Hi‑Res Audio certified).
Q3: What is the sensitivity and impedance of the S2‑S40?
A3: Sensitivity is around 86 dB, and nominal impedance is 4 Ω.
Q4: What materials or technologies are used in its construction?
A4: It uses a cone made of polypropylene/glass fiber/mica, and features Alpine’s HAMR (High‑Amplitude Multi‑Roll) surround for extended excursion.
Q5: Is this speaker suitable for shallow or compact mounting locations?
A5: Yes  the S2‑S40 is designed for compact fitment (4″ size) and many shallow mounting applications; mounting depth is approximately 1.72″ (≈ 43 mm).

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