Alpine PWE-S8 S-Series 8" Quad-Coil Underseat Subwoofer
The Alpine PWES8 is a compact, active subwoofer specifically designed for use in cars. With a diameter of 8 inches (20 cm), it delivers impressive bass performance supported by a builtin amplifier with a maximum power of 240 watts. The subwoofer is sealed, resulting in precise bass reproduction, making it ideal for various music styles. The frequency response ranges from 25 Hz to 152 Hz, covering a wide range of low frequencies. Installation is straightforward, as the subwoofer can be mounted under the seat, making it a practical solution for vehicles with limited space. Additionally, the volume control and phase selector allow for individual adjustment to personal preferences and the vehicle's acoustics. Builtin 240 W amplifier (120 W RMS) for powerful bass Adjustable cutoff frequency from 50 to 150 Hz for flexible tuning Phase selector (0° / 180°) to optimize bass reproduction Speaker input with automatic detection for easy integration Compact design allows for installation under the seat.
The Alpine PWES8 is a compact, active subwoofer specifically designed for use in cars. With a diameter of 8 inches (20 cm), it delivers impressive bass performance supported by a builtin amplifier with a maximum power of 240 watts. The subwoofer is sealed, resulting in precise bass reproduction, making it ideal for various music styles. The frequency response ranges from 25 Hz to 152 Hz, covering a wide range of low frequencies. Installation is straightforward, as the subwoofer can be mounted under the seat, making it a practical solution for vehicles with limited space. Additionally, the volume control and phase selector allow for individual adjustment to personal preferences and the vehicle's acoustics. Builtin 240 W amplifier (120 W RMS) for powerful bass Adjustable cutoff frequency from 50 to 150 Hz for flexible tuning Phase selector (0° / 180°) to optimize bass reproduction Speaker input with automatic detection for easy integration Compact design allows for installation under the seat.
The Alpine PWES8 is a compact, active subwoofer specifically designed for use in cars. With a diameter of 8 inches (20 cm), it delivers impressive bass performance supported by a builtin amplifier with a maximum power of 240 watts. The subwoofer is sealed, resulting in precise bass reproduction, making it ideal for various music styles. The frequency response ranges from 25 Hz to 152 Hz, covering a wide range of low frequencies. Installation is straightforward, as the subwoofer can be mounted under the seat, making it a practical solution for vehicles with limited space. Additionally, the volume control and phase selector allow for individual adjustment to personal preferences and the vehicle's acoustics. Builtin 240 W amplifier (120 W RMS) for powerful bass Adjustable cutoff frequency from 50 to 150 Hz for flexible tuning Phase selector (0° / 180°) to optimize bass reproduction Speaker input with automatic detection for easy integration Compact design allows for installation under the seat.
The Alpine PWES8 is a compact, active subwoofer specifically designed for use in cars. With a diameter of 8 inches (20 cm), it delivers impressive bass performance supported by a builtin amplifier with a maximum power of 240 watts. The subwoofer is sealed, resulting in precise bass reproduction, making it ideal for various music styles. The frequency response ranges from 25 Hz to 152 Hz, covering a wide range of low frequencies. Installation is straightforward, as the subwoofer can be mounted under the seat, making it a practical solution for vehicles with limited space. Additionally, the volume control and phase selector allow for individual adjustment to personal preferences and the vehicle's acoustics. Builtin 240 W amplifier (120 W RMS) for powerful bass Adjustable cutoff frequency from 50 to 150 Hz for flexible tuning Phase selector (0° / 180°) to optimize bass reproduction Speaker input with automatic detection for easy integration Compact design allows for installation under the seat.
in 20 offers
The lowest price for Alpine PWE-S8 S-Series 8" Quad-Coil Underseat Subwoofer right now is $299.65 at Automotive Superstore, compared across 18 retailers.
The all-time low was $279.30 on 28 Nov 2025 — today's price is 7% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 10 June 2026.
Last updated at 10/06/2026 07:05:58
Alpine PWE-S8 S-Series 8" Quad-Coil Underseat Subwoofer
Delivery between 11–23 June $10.95
Alpine PWE-S8 240W Max 8" Compact Subwoofer Built-In Amplifier
30-day returns
Alpine PWES8 Powered Subwoofer
Delivery between 15–19 June $9.95
Alpine Performance Quad-Coil Subwoofer System, 8", PWE-S8
Delivery between 17–19 June $15
Alpine PWE-S8 8" Compact Powered Woofer
Free delivery between 15–22 June
Alpine 8" Performance Quad-Coil Subwoofer System
Alpine PWE-S8 Under Seat Powered Sub-Woofer System
Alpine PWE-S8
Free delivery between 16–24 June
ALPINE PWE-S8 8′′ Performance Quad-Coil Subwoofer System
Alpine 8" Amplified Subwoofer PWE-S8 120W Compact Powered 8" Car Subwoofer for Under or
Delivery between 15–19 June $8.53
originally posted on sonicelectronix.com
I was very skeptic with this product . I have never used a sub that small, always stuck with 12s or 15s but i was doing this for my brothers SUV who didn't want to give up any trunk space . It works really well for what it is . Pretty decant kick on the bass and it does get surprisingly low, not crazy but definitely way more then I expected . I also recommend using the metal brackets it comes with so you can properly mount the sub to the seat bolts or to the floor to make sure that the bass coming from the sub can resonate with in the car .
originally posted on bestbuy.com
Got this to fit under the seat of a 10th gen Civic Coupe and fits well under the passenger seat. The seat coils vibrate under certain frequencies which can be annoying. It's not a ton of bass, but it is an improvement over the stock subwoofer in a 10th gen Civic Coupe equipped with the factory subwoofer in the trunk lid, even more so at higher volumes where the factory sub would roll off. I disconnected the factory sub and am just running this little guy.Ultimately I am looking for better bass in the lower end and I knew this likely wouldn't be the optional choice for that. I'll be replacing this with a proper 10" in a box in the trunk and putting this in a 2nd gen Tacoma or a Fiesta hatchback, which ever it fits best in.
originally posted on bestbuy.com
Excellent all in one compact solution. I wired this in overnight under the driver seat in my Civic. If you are wondering if it's enough bass, let me assure you, this thing is PRECISE and CLEAR and it can thump. It's not going to have the potential of a standalone with dedicated amp, BUT this has such clarity and depth, doesn't break the bank, and only takes up space that is already unused, it's my recommendation.It includes a bass knob with sticky Velcro, and mounting bracket. I just ran zipties through so that it's stationary from the high friction floor mats and easily removable if deemed necessary.At 50% capacity, it's still overwhelming in some music, and to someone who really appreciates the balance, I see absolutely no reason why this wouldn't work for ... MoreExcellent all in one compact solution. I wired this in overnight under the driver seat in my Civic. If you are wondering if it's enough bass, let me assure you, this thing is PRECISE and CLEAR and it can thump. It's not going to have the potential of a standalone with dedicated amp, BUT this has such clarity and depth, doesn't break the bank, and only takes up space that is already unused, it's my recommendation.It includes a bass knob with sticky Velcro, and mounting bracket. I just ran zipties through so that it's stationary from the high friction floor mats and easily removable if deemed necessary.At 50% capacity, it's still overwhelming in some music, and to someone who really appreciates the balance, I see absolutely no reason why this wouldn't work for everyone that doesn't want to flex on the neighbors with their groundshaker. This is beyond "good enough" and exceeds my expectations.
| Pair or Single | Single |
| Woofer Diameter (mm) | 200mm |
| Woofer Diameter (Inch) | 8 Inch |
| RMS Power | 120W |
| Frequency Response | 25Hz - 152Hz |
Alpine PWE-S8 S-Series 8" Quad-Coil Underseat Subwoofer
Delivery between 11–23 June $10.95
Alpine PWE-S8 240W Max 8" Compact Subwoofer Built-In Amplifier
30-day returns
Alpine PWES8 Powered Subwoofer
Delivery between 15–19 June $9.95
Alpine Performance Quad-Coil Subwoofer System, 8", PWE-S8
Delivery between 17–19 June $15
Alpine PWE-S8 8" Compact Powered Woofer
Free delivery between 15–22 June
I was very skeptic with this product . I have never used a sub that small, always stuck with 12s or 15s but i was doing this for my brothers SUV who didn't want to give up any trunk space . It works really well for what it is . Pretty decant kick on the bass and it does get surprisingly low, not crazy but definitely way more then I expected . I also recommend using the metal brackets it comes with so you can properly mount the sub to the seat bolts or to the floor to make sure that the bass coming from the sub can resonate with in the car .
Got this to fit under the seat of a 10th gen Civic Coupe and fits well under the passenger seat. The seat coils vibrate under certain frequencies which can be annoying. It's not a ton of bass, but it is an improvement over the stock subwoofer in a 10th gen Civic Coupe equipped with the factory subwoofer in the trunk lid, even more so at higher volumes where the factory sub would roll off. I disconnected the factory sub and am just running this little guy.Ultimately I am looking for better bass in the lower end and I knew this likely wouldn't be the optional choice for that. I'll be replacing this with a proper 10" in a box in the trunk and putting this in a 2nd gen Tacoma or a Fiesta hatchback, which ever it fits best in.
Excellent all in one compact solution. I wired this in overnight under the driver seat in my Civic. If you are wondering if it's enough bass, let me assure you, this thing is PRECISE and CLEAR and it can thump. It's not going to have the potential of a standalone with dedicated amp, BUT this has such clarity and depth, doesn't break the bank, and only takes up space that is already unused, it's my recommendation.It includes a bass knob with sticky Velcro, and mounting bracket. I just ran zipties through so that it's stationary from the high friction floor mats and easily removable if deemed necessary.At 50% capacity, it's still overwhelming in some music, and to someone who really appreciates the balance, I see absolutely no reason why this wouldn't work for ... MoreExcellent all in one compact solution. I wired this in overnight under the driver seat in my Civic. If you are wondering if it's enough bass, let me assure you, this thing is PRECISE and CLEAR and it can thump. It's not going to have the potential of a standalone with dedicated amp, BUT this has such clarity and depth, doesn't break the bank, and only takes up space that is already unused, it's my recommendation.It includes a bass knob with sticky Velcro, and mounting bracket. I just ran zipties through so that it's stationary from the high friction floor mats and easily removable if deemed necessary.At 50% capacity, it's still overwhelming in some music, and to someone who really appreciates the balance, I see absolutely no reason why this wouldn't work for everyone that doesn't want to flex on the neighbors with their groundshaker. This is beyond "good enough" and exceeds my expectations.
I read a lot of reviews before purchasing. I was hesitant to buy just because of what it is. A lot of people said it was a nice addition so I bought it with high hopes. I hooked it up in my Jeep patriot and I honestly could hardly tell any difference from this product and no sub. I returned it and bought a set of subs.
The specifications are confusing as different sources provide different specs. The low range is 25hrz, another 35hrz another 33hrz. After installation, I'd say it barely goes to 35hrz. I would have returned it but I didn't get installed until after the return date.
I’ve yet to hear a Kicker Hideaway, but multiple installers have told me my Alpine sounds much better and every shop dislikes the Kicker model. Four seperate car audio shops and three carry Kicker. I think all the mini amplified subs are prone to failure, so I recommend adding the warranty. The Alpine gives a clean clear thump for added bass to give a full sound experience. It’ll rattle your mirrors, but you’re not going to hear it outside the vehicle. You need a bigger enclosure with a deeper depth sub for that. The Alpine is tiny and easy to find a place to install. It provides impressive bass for it’s size.
As far as the unit itself, i wasn’t impressed. I thought i would be able to hear and feel SOME bass, as many of the reviews stated this was a pretty loud speaker. It wasnt for me unfortunately. I took it back within a few weeks. It was, however, compact and did indeed take up little to no soace, but it didnt produce as i was hoping. Geek squad was great to work with through out all of this.
I installed it in a Tacoma extra cab under passenger seat. Fits well and is out of sight. First off you have to realize the difference from this low profile eight inch sub from standard sub woffers. For its size it packs a punch and am very pleased with it. The price is steep but for the compact size and simplicity of installation of and all in one (subwoofer, amplifier and box) it's not so much if you were to buy all three components separately. Now, dont expect to bump Bass Mechanic and compare it to 3 W7's running at 2500 watts rms. This sub plays perfect giving you bass to regular song as Muse. The only thing i don't like much is the bass knob. It doesnits job but you have to turn it almost all the way down before it actuates and reduces the bass. From 100% it ... MoreI installed it in a Tacoma extra cab under passenger seat. Fits well and is out of sight. First off you have to realize the difference from this low profile eight inch sub from standard sub woffers. For its size it packs a punch and am very pleased with it. The price is steep but for the compact size and simplicity of installation of and all in one (subwoofer, amplifier and box) it's not so much if you were to buy all three components separately. Now, dont expect to bump Bass Mechanic and compare it to 3 W7's running at 2500 watts rms. This sub plays perfect giving you bass to regular song as Muse. The only thing i don't like much is the bass knob. It doesnits job but you have to turn it almost all the way down before it actuates and reduces the bass. From 100% it functions best between 0 and 30%. One other factor to consider is the vehicle size and location. Overall this is a great little sub. I would definitely recommend it.
As others have noted, this isn’t gonna shake your trunk off the hinges. But if you’re looking to fill in the low end, it’ll get the job done. I had this installed behind the driver seat in a Honda Clarity to enhance the factory stereo and speakers and I’ve been pleased. I did have to fiddle with the settings a bit to dial in the audio and on this car, you have to disconnect the ANC module but the Geek Squad tech took care of all that at my request.
In 2013, I replaced the factory radio in my 2008 Toyota Matrix with an Alpine INE-S920HD In-Dash GPS Navigation Receiver, 2 pairs of Pioneer TS-A1675R 3-Way Speakers, and an Alpine KTP-445U Head Unit Power Pack. Initially, I was very pleased with this setup. All I wanted to do was to overcome the noise of driving with the windows down and play the music I love. While working for Best Buy in 2017-2018, I noticed how many of my fellow Blue Shirts had subwoofers in their cars. Not wanting to be behind the times but also not wanting to break the bank on a sub-amp combination, I added this Alpine Powered Subwoofer System to my existing configuration. What a difference! Now the door speakers aren't carrying the same load to produce bass and sound better now that their ... MoreIn 2013, I replaced the factory radio in my 2008 Toyota Matrix with an Alpine INE-S920HD In-Dash GPS Navigation Receiver, 2 pairs of Pioneer TS-A1675R 3-Way Speakers, and an Alpine KTP-445U Head Unit Power Pack. Initially, I was very pleased with this setup. All I wanted to do was to overcome the noise of driving with the windows down and play the music I love. While working for Best Buy in 2017-2018, I noticed how many of my fellow Blue Shirts had subwoofers in their cars. Not wanting to be behind the times but also not wanting to break the bank on a sub-amp combination, I added this Alpine Powered Subwoofer System to my existing configuration. What a difference! Now the door speakers aren't carrying the same load to produce bass and sound better now that their bass response has been rolled off. Could I graduate to a stronger output amp for the speakers? Yeah, I could, but it would start an endless upgrade process and I'm not made of money. This is my final add-on... until I get another car but that's another story.
| Pair or Single | Single |
| Woofer Diameter (mm) | 200mm |
| Woofer Diameter (Inch) | 8 Inch |
| RMS Power | 120W |
| Frequency Response | 25Hz - 152Hz |
