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10" 800W Slim Under Seat Powered Car Subwoofer, Car/Truck Audio Sub Built in Amplifier, New Upgrade with Blue LED Ambient Light

  • Based on 420 reviews
Condition: New
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Availability: 20 left in stock
Fulfilled by Amazon

Arrives Tuesday, Sep 16
Order within 11 hours and 46 minutes
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Color: Subwoofer + Mounting Wire Kit


Features

  • Seventour ST-800 10 inch Ultra Slim Under Seat Active Powered Car/Truck Subwoofer with Built-In Amplifier, Enclosure made of cast aluminum for excellent heat dissipation and reliable performance.
  • This is a new 2024 upgraded car subwoofer audio that features a personalized spider speaker protector as well as a speaker LED ambient light ring design. When the car is started, the subwoofer lights up with blue LED lights. Make your car look more cool and dynamic.
  • This ST-800 car subwoofer includes wired bass volume remote control. With gain, bass boost and crossover controls, peak power: 800 watts, giving you a stunning bass experience.
  • The Car Sub supports low level RCA inputs. It is also compatible with high level inputs, adjustable input sensitivity, thermal protection circuitry, short circuit protection circuitry, overload protection circuitry, green power/red protection LED.
  • Low Pass Filter: 50Hz - 150Hz, Bass Boost: 0 - 12dB @ 45Hz, Built-in Sub-Acoustic Filter Load @ 20Hz, Total Harmonic Distortion (THD): < 0.4%, Rated Fuse: 25A, Peak Power: 800 Watts, RMS Power Handling: 220 Watts, Impedance: 4 Ohms
  • Frequency Response 20Hz - 500Hz, Signal to Noise Ratio: >90dB , Low Level: 300mV, Input Sensitivity, High Level: 0.9V, Dimensions (inches): 13.5"(L) x 10.2"(W).Thickness: 3.1"
  • Customer Service Support : We promise to replace the product with a new one if there is any product quality issue within 1 year, and repair the product within 2 years. Seventour provides professional after-sales support, and we will reply to every customer's email within 12 hours.

Brand: Seventour


Speaker Maximum Output Power: 800 Watts


Frequency Response: 500 Hz


Connectivity Technology: RCA, Auxiliary, USB


Audio Output Mode: Mono


Mounting Type: Under Seat Mount


Material: Aluminum


Model Name: ST-800


Speaker Type: Subwoofer


Special Feature: Bass Boost, LED Light, Noise Cancelling


Recommended Uses For Product: For Surround Sound Systems


Compatible Devices: Head Unit, Car Stereo


Subwoofer Diameter: 10.2 Inches


Unit Count: 1.0 Count


Controller Type: Remote Control


Surround Sound Channel Configuration: 5.1


Color: Subwoofer + Mounting Wire Kit


Included Components: Volume controller, RCA input/output cables, High to Low Level Converter, Power Cable, 10-inch subwoofer main unit


Product Dimensions: 2.7"D x 13.5"W x 10.2"H


Item Weight: 4.84 Kilograms


Is Waterproof: FALSE


Warranty Type: Limited


Maximum Range: 10 Inches


Number of Items: 1


Control Method: Remote


Wireless Communication Technology: Bluetooth


Speaker Size: 10 Inches


Power Source: Corded Electric


Signal-to-Noise Ratio: 9E+1 dB


Woofer Diameter: 10 Inches


Vehicle Service Type: Bus, Car, Truck


Audio Driver Type: Dynamic Driver


Audio Driver Size: 100 Millimeters


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: wired


Includes MP3 player?: No


UPC: 786882586763


Global Trade Identification Number: 63


Manufacturer: Seventour


Item Weight: 10.65 pounds


Item model number: ST-800


Date First Available: September 20, 2023


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Wow! Incredible Sound and Really Looks Cool!
Color: Subwoofer + Mounting Wire Kit
Last weekend, I replaced the stock stereo (with a 10.1" touch screen) and stock speakers (with 4-way Sony 4x6" and 3-way Pioneer 6.5") in my '98 Chevy S10. I did NOT hook up this subwoofer at the time (was too tired then), so I drove around for a week with music devoid of bass. It sounded good (better than stock), but there just was no bass. This weekend, I tackled this subwoofer installation. I used the included hook part of the hook-and-loop pieces (what most generically call Velcro), along with a few other large pieces I had on-hand to secure it to the back wall between the seats (behind the center console). The bottom half of that wall is carpeted, so the hooks grabbed nicely and secured it well. I then ran all the cabling (the hardest part was getting the positive cable through the firewall to the fuse box input). People whine about the positive and negative cables in these reviews, but they're fine (I'm not having any issues, and I like that the insulation is so thick since you don't want that getting rubbed through and contacting the chassis, though I still placed mine within flex tubing). I was so excited when I cranked my truck and (after powering on the unit) heard that bass; it was incredible! Deep bass filled the entire cab! The lighting is a really cool touch, too! I am very satisfied. It's neat to see that speaker moving in an out behind that large spider... just looks nice. The box is solid; very well-built. Connections are tight. I've a radio with one RCA output each for connecting up to 2 subwoofers. I used a Y-splitter off of the radio's SW1 output to connect to the RCA L and R inputs of the subwoofer after doing some research on-line and learning how that worked. Also, I didn't need to make any adjustments to the 3 recessed potentiometers on the subwoofer; their default settings seem fine to me. Oh, and don't forget to ensure the subwoofer is on when you test it! While installing it, I must have turned mine off, but I thought it was on since the blue lighting ring was on... but there was no bass... then I realized the switch was off. As soon as I pushed it, I was amazed at the enhanced sound of my system! Also, if you connect the blue wire properly to the remote on the subwoofer, the unit will power off when your radio powers off, so there's no need to continually manually power it on and off. Highly recommended unit! In fact, a friend of mine liked my new system so much after hearing it yesterday, he's ordering the same components now to replace his stock system in his vehicle. ... show more
Reviewed in the United States on April 14, 2024 by Michael Speciale, Jr.

  • Don’t waist your money
Color: Subwoofer + Mounting Wire Kit
YES, this looks like an affordable option, which it is. I saw a ton of good reviews so I jumped on this while on sale…”can’t be that bad if everyone says it’s great, right?” I thought so too. Product arrived in slightly dented box (Trust me I get it, I work in the freight industry so things happen) Product appears fine, I switched out everything from my old unit) Instal was easy (I already knew what to do). Didn’t work. “Okay I messed up somewhere”, so I ran a test with the old unit I had (also cheap but did the job) used new units wiring to ensure all wiring was still good. Old unit worked…. No worries, I understand things like this happen. I reach out to company asking for replacement. No response ever. Then I reach out to Amazon. They send me return label and everything. Took to shipper and done. Still have yet to receive an email from shipper or Amazon….. I’m guessing there was some type of replacement conversion happening and nothing was relayed.. IDK, nor do I care… Save your money and get a Kicker or Rockville powered sub. Yes more expensive but worth the money and customer service. ... show more
Reviewed in the United States on April 5, 2024 by Noah

  • Compra recomendada.
Color: Subwoofer + Mounting Wire Kit
Excelente compra. Sin embargo, recomiendo altamente cambiar los cables, ya que después de un tiempo de terner la bocina dejo de funcionar. La llevé al técnico y me dijo que el cableado no es de la mejor calidad por lo que tuvo que cambiarlo. Después de este incidente, no he tenido ningún problema.
Reviewed in the United States on June 5, 2025 by Clifford Ameth Bowen

  • Effective, yet I think it is inflated
Color: Subwoofer + Mounting Wire Kit
Installed in a Honda Civic sedan, and with the included wiring kit, it struggled. Replaced with a 4AWG kit and it performed better, however I will say that I do not believe that the following is correct: Airspace - it had a limited frequency coverage range. Which would lead a reasonable person to believe that it is undersized. (Someone who has experience in designing and building boxes) Power - Clearly I would expect a maximum of 200 watts RMS out of this, the inflated 800 watt as advertised, is just a sales ploy. NOTE - I did not take this apart and measure with a meter. BUT I will say that with the massively reduced airspace, I doubt that this unit is coming close to the advertised power. OVERALL - this is a decent unit. I could care less about the LED lighting, but it adds some low end to your setup. Would I recommend? Absolutely. You cannot take the same money and put something else in that will do what this does, unless you get it on FBM. I am not on the fence, but I will go a different direction in the future. ... show more
Reviewed in the United States on November 21, 2024 by TM4512

  • Worked For What I Was Looking For
Color: Subwoofer + Mounting Wire Kit
Worked really well in my daughters car. It gives a nice low end thump, but nothing that will will rattle the car or your house when you pull up. I think my daughter is pleased and still enjoys it.
Reviewed in the United States on May 2, 2025 by Alan

  • Simple and works!
Color: Subwoofer + Mounting Wire Kit
This mf bumps! Have it in my single cab dodge ram and wowzers!
Reviewed in the United States on May 10, 2025 by Wesley

  • Sub works well, high to low RCA converter not great
Color: Subwoofer + Mounting Wire Kit
Sub sounds decent given its size. As many have mentioned, its really an 8" speaker, 10" enclosure. Once I had it all hooked up and spliced into the factory head unit, it wouldn't power on. tried multiple remote/acc locations, checked fuses, and thought I had something wired incorrectly. Even though it was fully seated, I found I had to press the wire harness into the high to low converter VERY firmly, and then it fired right up. I wound up having to wrap the harness tightly into the converter box with electrical tape for it to stay on. you get what you pay for; it's a great value, not great quality. ... show more
Reviewed in the United States on September 18, 2024 by rmp

  • The quality is too poor. Do not build to buy
Color: Subwoofer + Mounting Wire Kit
I bought it last year. Only today do we have time to start the installation. The installation found that the sound of electric current was too loud. Purchase is not recommended. The quality is too poor.
Reviewed in the United States on May 26, 2025 by Zhu fang hu

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