Newly redesigned and officially Hi-Res Audio Certified, the Alpine S2-S50 sets a clean new benchmark for entry-level sound performance. Utilizing specialized "trickle-down" technology inspired by Alpine’s flagship, ultra-high-resolution Alpine F#1 Status system, these 5-1/4" speakers reproduce an incredibly detailed frequency response up to 40kHz. Constructed from a unique lightweight composite blend and paired with integrated 3/4" dome tweeters, they deliver ultra-low distortion and an authentic, natural soundstage at an appealing price point.
Key Performance Features
Hi-Res Audio Certified: Able to seamlessly reproduce an extended frequency response up to 40kHz, adding the life-like nuance, texture, and separation your high-resolution audio sources deserve.
Innovative Composite Cone: Crafted with a specialized combination of Polypropylene, Glass Fiber, and Mica materials to achieve an ultra-lightweight design with high output capacity and minimal cone distortion.
Patented H.A.M.R. Surround: Alpine's exclusive High-Amplitude Multi-Roll (H.A.M.R.) rubber surround maximizes linear cone movement, bringing out the absolute best in mid-bass response.
Integrated 3/4" Tweeters: Built with cloth dome tweeters that smoothly serve up all the high-frequency detail and vocal accuracy you've been missing from dull factory speakers.
Excellent Efficiency: Designed to handle a solid 55 Watts RMS, making them highly efficient and an excellent upgrade for factory wiring layouts or compact multi-channel amplifiers.
Technical Specifications
Feature
Details
Speaker Type
2-Way Coaxial
Speaker Size
5-1/4" (5.25 Inch)
Tweeter Size
3/4" Cloth Dome
Power Handling (RMS)
55 Watts (per pair)
Power Handling (Peak)
170 Watts (per pair)
Frequency Response
80 Hz – 40 kHz (Hi-Res Certified)
Sensitivity
87 dB
Impedance
4-Ohm
Mounting Depth
1.969" (approx. 2 inches)
Customer Frequently Asked Questions
Will these fit in my vehicle without an external amplifier?
Yes, absolutely. While the S2-S50 speakers sing beautifully when connected to a dedicated multi-channel amplifier, their efficient engineering allows them to provide a massive step up in clarity, vocal depth, and clean mid-bass response even when driven straight by a standard factory radio.
Do these speakers come with grilles?
No, the standard retail package does not include grilles because 5-1/4" speakers are almost always mounted out of sight behind factory door or panel locations. For custom exposed builds, they are fully compatible with the Alpine KTE-S50G speaker grilles (sold separately).
What is the benefit of these being Hi-Res Certified?
Standard car speakers lose clarity and roll off their response around 20kHz. Because these are certified up to 40kHz, they can effortlessly reproduce the delicate harmonics and crisp highs of high-quality digital music files (like FLAC or high-bitrate streaming tracks) without introducing harshness.
Installation Note
The Alpine S2-S50 features a compact mounting depth of just under 2 inches, allowing them to drop cleanly into a vast array of factory locations. When installing, always make sure to use high-quality foam speaker rings or gasketing tape around the mounting rim. This simple addition seals the speaker face securely to your door panel cavity, preventing audio waves from bleeding backward and canceling out your mid-bass response.
PRODUCT SPECS
Brand: Alpine Type: 2-Way Speaker Size: 5.25in. Model: S2-S50 MPN: Alpine S2-S50 RMS Power: 55W Country of Origin: China UPC: 793276085092 Condition: New
**Additional items may be required for your specific vehicles install (i.e dash kit, wire harness, antenna adapter, etc.) please contact us if you need assistance
** **Customer is responsible for verifying vehicle fitment prior to purchase
****We recommend that all items purchased from 360 Audio be installed/programmed by a professional**
Terms of Sale
Payment Due Date: When using Buy It Now, payment is due immediately. As per the eBay payment policy if payment is not received immediately, then the item remains available to other buyers to purchase for the duration of the listing. Please note the order will not be fulfilled until a payment is made.
Shipping Policy
All standard shipping services other than expedited shipping are FREE to our customers Most of our small products ship via USPS. Larger items will be shipped UPS or Fedex Products ship within 24 hours (business days). Please read our Return Policy before ordering.
Return Policy
When you order from 360 Audio, the order is fulfilled and shipped from our own inventory. Any return is also sent back to 360 Audio's warehouse directly, instead of a third party shipper. We strive to maintain a return policy that is fair and beneficial to our valued customers. If you are having trouble with your item or are not satisfied please contact us through eBay!
Customer Service Hours
Mon - Sun: 9 am - 10 pm PST
360 Audio Offers a 30-Day Money Back Guarantee on all items sold as NEW. The items MUST NOT have been installed to be eligible for return.If you receive a damaged product, please contact us within 24-48 hours so that we may set up arrangements for return/exchange. No return shipping cost will be incurred in this event.If you wish to return your item, you the buyer will be responsible for return shipping, unless the reason for the return is a result from an error caused by 360 Audio or the product is defective or damaged. The product must be packaged back in its original packaging and in proper shipping condition; and the shipping label attached to the outside of the package. If it is possible and you choose to have the package picked up, it is your responsibility to be available for the shipper. If you fail to do this, you may pass the time frame necessary to return your product and receive a refund.
Note: 360 Audio will not accept returns on products with missing Serial Numbers and UPCs
Partial Refunds: 360 Audio reserves the right to partially refund the customer in situations outlined above. Whenever a product is returned and it is determined there is misuse, damage or neglect, based on the condition in which the product is received, a partial refund will be given instead of the full refund amount. It is our goal to never have to apply this type of additional charge.
eBay started to streamline the returns process in order to improve the overall experience for buyers and sellers. They have set certain parameters in place to protect sellers from invalidated returns.
Protections from events outside the sellers control include: When the seller ships an item on time and provide tracking, and it arrives late. If the seller is impacted by carrier disruptions or severe weather. If the buyer retracts their bid or doesn't pay. If the buyer changes their order or requests something extra. From buyers that have an unusual rate of complaints or returns. If the buyer returns an item after they opened it, used it, or sent it back in a condition other than the one you sent it in.
TESTIMONIALS
Our customers love the quality and service we provide. Each purchase is backed by real feedback from satisfied buyers who trust us for fast shipping, great communication, and top-notch products. We’re proud to earn your business and aim to exceed your expectations every time.
“Great seller, would buy from again. A++++. Item was well packaged and shipped quickly. The item was as described brand new, and no damage to it at all. ”
ferngonz5903
February 23, 2025
“I haven’t installed the item yet, but the product came new in box. The seller gave great value and it looks great. The quality of customer service is excellent. They provided prompt feedback and follow up to my inquiries. Seller went out of their way to try to help find where my item was. FedEx dropped the ball and held my item for 2 weeks in one location. Awesome commitment to customer service. ”
Chri_7345
December 13, 2024
“This is a fantastic radio from Pioneer. Bright, big screen that is also very responsive a joy to look at. It came brand new in box. It helps that price was it's a great value as well since you get the latest and greatest hardware. It supports two camera inputs and the seller threw in a camera that I set up on the front of the car for those tight parking spot help. Very happy with the purchase and highly recommend both the item and the seller. ”
Rahulraj89
September 26, 2024
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