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Description
Alpine RS-SB12 : 12" 750W 2Ω Thin Subwoofer EnclosureR Series Loaded 600 Watt Thin 12 Inch 2 Ohm Subwoofer Enclosure Now you dont have to choose between bass and space! Alpines R Series Shallow preloaded subwoofer enclosure measures at a minimal 5. 25 deep to deliver a loud and fun sound in most vehicle applications. Rubber feet are adjustable in height to accommodate uneven vehicle floors. Dont let the size fool you the enclosures feature the same motor movement (20MM of 1 way excursion) as the full
R-Series Loaded 600-Watt Thin 12-Inch 2-Ohm Subwoofer Enclosure
Now you don’t have to choose between bass and space! Alpine’s R-Series Shallow preloaded subwoofer enclosure measures at a minimal 5.25” deep to deliver a loud and fun sound in most vehicle applications. Rubber “feet” are adjustable in height to accommodate uneven vehicle floors.
Don’t let the size fool you – the enclosures feature the same motor movement (20MM of 1-way excursion) as the full-size R2-Series subwoofers for extreme output in a shallow woofer design. At the heart of the R-Series shallow subwoofers is an oversized 4-inch voice coil that houses the lightweight and powerful neodymium magnet for 600W RMS of power handling.
Integrated cooling fins located in the core of the subwoofer help dissipate the heat generated by the rapid subwoofer movement for enhanced cooling reliability and hours of uninterrupted playtime. The unique CoolMount dual-panel mount subwoofer motor enhances cooling.
Alpine’s Gen2 DD-Linear Magnetic Circuit technology, a compact and efficient dual-gap voice coil structure, allows for better control over the motor, resulting in lower distortion and precise bass control. The preloaded enclosures use the subwoofer frame as bracing fora more ridged design and better bass response.
A lightweight yet rigid aluminum dust cap allows the R-Series shallow subwoofer to transition sound quickly with minimal distortion and project the bass off the surface of the speaker for hard-hitting yet smooth bass performance. The included adjustable mounting brackets allow for a downfire mount configuration.
With dual voice coils wired in parallel for a 2Ω load, the Alpine R-Series 12" shallow subwoofer enclosure is optimized to perform with Alpine's S-A60M or R-A75M mono amplifiers.
Features
- Optimal sealed cabinet quality
- Aluminum Dust Cap
- Neodymium Magnet
- Alpine Gen2 DD Linear Magnetic Circuit
- CARB compliant ¾” MDF construction
- Premium Alpine embroidered black carpet
- Alpine-branded terminal cup
- Pre-installed steel mesh grille
- Includes a 12” R-Shallow Subwoofer (RS-W12D4)
- Rubber, modular stackable foot design
Specifications
- Dimensions: 26.5” W x 5.25” H x 17” D
- 600W RMS Power Handling
- Frequency response: 26Hz – 200Hz
- Dual 4Ω voice coils wired in parallel for a 2Ω load (compatible with S-A60M or R-A75M)
- Nominal Impedance: 2Ω
- Voice Coil: 4”(101.6mm)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 2026 reviews
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Product Reviews
★★★★★ 5
Comfortable
Color: Grey, Size: Single
Wife uses it every day and loves it.
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Cómodo
Color: Grey, Size: Single
Versatil y cómodo, me gusta que trae su bolsa para guardar.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Cooling
Color: Dark Gray Pinstripe, Size: King(108"x90")
Very lightweight & cooling!
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Cool, lightweight, and surprisingly comfortable!
I absolutely love this cooling comforter! The first thing I noticed is how lightweight it is. It comes in at just over 3 pounds, so it’s not thick or bulky at all, which I really appreciate. It feels easy to move around and doesn’t weigh you down while you’re sleeping.
I chose the queen size in dark gray. It’s reversible, which is such a nice bonus. One side has a simple white stripe pattern that gives it a little personality, and the other side is a solid gray. The solid gray side is the cooling side, and oh my goodness, it feels so silky and smooth to the touch. That cool-to-the-touch feeling is really noticeable when you first get under it.
I didn’t have any issues with it sliding off the bed, but I’ll mention that I don’t toss and turn a lot at night, so that may be part of it. If you’re someone who moves around more, your experience might be a little different.
As far as washing goes, I did notice a small inconsistency. The product description recommends hanging it to dry, but the tag on the comforter says it can be machine washed and dried. I’m going to go ahead and follow the tag instructions and tumble dry it. I’ll definitely come back and update if I notice any issues after machine drying it.
I live in the South and right now our weather is actually pretty mild so it’s a little hard to say just how much of the cooling effect is from the blanket versus the temperature in the house. That said, I do feel like it’s helping. I haven’t been waking up hot and the fabric itself definitely feels cool and breathable so I’m excited to see how it performs when the real heat kicks in.
I’m also really pleased with the overall quality. The stitching looks clean, there are no loose threads and everything feels well made and thoughtfully put together. It gives me confidence that it will hold up nicely over time.
This doesn’t affect my rating, but I do wish there were more color or pattern options to choose from. It would be fun to have a few more styles, especially since it’s such a nice-looking comforter.
5 stars for its lightweight feel, silky cooling fabric, and solid, well-made construction.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
This is a great blanket for those who prefer to be cool all night.
This is a great blanket for those who prefer to be slightly cooler all night. I have been using this for almost two months now. It's been difficult to figure out how to explain it's use. Ultimately I have figured out that it acts like a blanket, insulating and keeping you warm, however, wherever the blanket is actually resting on your skin stays cool. It took me a while to figure it out. How does an insulating blanket cool you? I'm not sure how the material actually works, but that is what it does, at least for slightly cool interior weather with a bit of humidity. I imagine in the desert it may work differently. I would say nights when a sheet may be too cold or thin, and a blanket way too hot, this is the in between.
The material itself is soft and almost silky. It is made well, has a pleasant appearance on the bed, and doesn't wrinkle. So getting up in the morning it is easy to toss and make the bed. It breathes unlike a duvet cover and feather blanket, so no need to air it out so much.
I have come to really love it and recommend it for anyone looking for an in between, between a sheet and comforter. I have never woken up sweating or pulling it off at night. My only experience was at first thinking I was cold but learning that I was not, only where my skin was in contact!
For the quality and price, it is definitely worth giving it a try!
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Reviewed in the United States on April 25, 2026
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