Search  for anything...

H YANKA SODA-08ASW 400W 8 Inch Compact Underseat Car Subwoofer with Built-in Amp, Slim Powered Subwoofer for Car/Truck/Jeep Audio

  • Based on 143 reviews
Condition: New
Checking for the best price...
$89.99 Why this price?
Save $8.77 was $98.76

Buy Now, Pay Later


As low as $15.00 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Sep 19
Order within 13 hours and 22 minutes
Available payment plans shown during checkout

Size: 8 Inch Powered Underseat Subwoofer


Features

  • Powerful Bass PerformanceImmerse yourself in a world of deep, resonant bass with the HYANKA 400W 8 Inch Compact Underseat Subwoofer. Boasting a robust RMS power of 100W, this sleek and compact subwoofer ensures a powerful and immersive audio experience for your car, truck, or Jeep.
  • Crystal-Clear Sound QualityWith a Total Harmonic Distortion (THD) of less than 0.5% and a Signal-to-Noise Ratio exceeding 90dB, our SODA-08ASW model delivers crystal-clear sound quality. Every note and beat are reproduced faithfully, allowing you to enjoy your favorite tunes with unparalleled clarity.
  • Wide Frequency RangeExperience the full spectrum of sound with a generous frequency response ranging from 20Hz to 150Hz. Whether you're a fan of heart-pounding beats or subtle background melodies, this subwoofer caters to a diverse range of musical preferences.
  • Flexible Input OptionsThe SODA-08ASW provides versatility with high and low-level input sensitivity options, making it compatible with a variety of audio systems. Connect effortlessly and enjoy enhanced audio performance in any setting.
  • Precision ControlTake command of your audio experience with precision control features, including a customizable Bass Boost ranging from 0 to +12dB and a Low Pass Filter adjustable between 50Hz and 150Hz. Tailor the sound to your preferences for the perfect listening environment.
  • Subsonic Filtering for ClarityEnhance audio clarity with the integrated Subsonic Filter set at 20Hz. This feature ensures that only the cleanest, distortion-free frequencies reach your ears, delivering an unmatched listening experience.
  • Built-In Amplifier for Easy InstallationSimplify your setup with the built-in amplifier, eliminating the need for external power sources. The compact design of the subwoofer allows for easy installation under your seat, maintaining a clean and organized appearance in your vehicle.
  • Durable ConstructionCrafted with durability in mind, the HYANKA SODA-08ASW features a high-quality 8-inch, 4-ohm subwoofer. This ensures longevity and reliable performance, so you can enjoy premium audio for the long haul.
  • Safety Assured with 20A FuseRest easy knowing that safety is a priority. The subwoofer comes equipped with a 20A fuse, providing protection against power surges and ensuring the longevity of your investment.
  • Compact Dimensions, Big SoundMeasuring at just 270 x 200 x 79mm (10.53 x 7.8 x 3 inches), this compact subwoofer proves that big sound can come in small packages. Upgrade your audio system without sacrificing valuable space in your vehicle.

Brand: H YANKA


Speaker Maximum Output Power: 400 Watts


Frequency Response: 2E+1 Hz


Connectivity Technology: Wired


Audio Output Mode: Stereo


Mounting Type: 8 Inch Compact Underseat Subwoofer


Material: Plastic


Model Name: 8 Inch Powered Underseat Subwoofer


Speaker Type: Subwoofer


Special Feature: 8 Inch Compact Underseat Subwoofer


Recommended Uses For Product: 8 Inch Compact Underseat Subwoofer, Slim Powered Subwoofer Car/Truck/Jeep Audio


Compatible Devices: Car/Truck/Jeep...


Subwoofer Diameter: 8 Inches


Unit Count: 1.0 Count


Controller Type: Corded electric


Color: Black


Included Components: 1 x 8 Inch Compact Underseat Subwoofer, 1 x Instruction Manual, Remote


Product Dimensions: 10"D x 7"W x 3"H


Item Weight: 8 Pounds


Impedance: 4 Ohm


Is Waterproof: FALSE


Warranty Type: Extended


Number of Items: 1


Control Method: Touch


Speaker Size: 8 Inches


Power Source: Corded Electric


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


Woofer Diameter: 8 Inches


Vehicle Service Type: ATV, Boat, Bus, Car, Golf Cart, Motorcycle, Tractor, Truck, UTV


Customer Package Type: FFP


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 Inches


Subwoofer Connectivity Technology: Wired


Includes MP3 player?: No


Number Of Circuits: 1


Number of Power Levels: 400


Specific Uses For Product: 8 Inch Compact Underseat Subwoofer, Slim Powered Subwoofer Car/Truck/Jeep Audio


UPC: 715917401245


Style: 8 Inch Compact Underseat Subwoofer


Global Trade Identification Number: 45


Manufacturer: HYANKA


Item Weight: 8 pounds


Item model number: 8 Inch Powered Underseat Subwoofer


Date First Available: December 13, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Sep 19

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • More bass than I expected.
Size: 8 Inch Powered Underseat Subwoofer
I was looking for a cheap upgrade for my 1990 Toyota 4x4 pickup and this under the seat amp/sub combo had a lot of good reviews and it was affordable. I didn't expect much from it, but figured it would add to the weak 4" speakers in the dash and the 4x6 speakers I added to the cubby holes in the extracab walls. This was an easy installation and added a LOT of bass! Its small size made it slide under the passenger bucket seat perfectly so it's out of the way. I tried a few different genres of music, and it works pretty well for everything. I'm not even running it full volume because it punches pretty good in a pickup truck cab. No distortion from what I've noticed. I would add one of these to another basic system in the future because it's an affordable and easy way to add some punch to your sound. ... show more
Reviewed in the United States on August 24, 2025 by D. Smith

  • Fantastic for the price.
Size: 8 Inch Powered Underseat Subwoofer
I installed this in my 2021 Colorado crew cab W/T. Although my stock sound system was alright, the low end left a little to be desired. This sub fits perfectly under my drivers seat and is virtually unnoticeable. Build quality is much better than expected. As Youtube reviewers have tested it, such as OldSchoolStereo, the internal amp is actually rated for decent power. The 30A fuse confirms this - it will actually run between 150-250W, which is plenty of juice for such a small sub. The ennclosure is entirely metal which is great for dissipating heat. The terminal connections are good quality and the instruction manual was even clear and concise. I tapped into my FL speaker signal wires for high level input and the sub auto-powers on without issue. Tuning was easy, just set the LPF to around 160Hz and turn up the bass boost inversely to reducing bass response on factory speakers from the head unit. This prevents the speakers from having to work so hard to produce low frequencies and leaves it to the sub. I was able to achieve a much louder, crisper sound from my speakers and the sub fills the low-end gap nicely with much more efficient response than the stock speakers can achieve. The included bass knob is useful for fine-tuning the sound of different songs on the fly, as I listen to all sorts of music. That being said, frequency response does fall off after ~48Hz. You can't expect much more from a 6.5" driver (yes, the driver itself is only 6.5, the box width is 8".) IT also doesn't get exceptionally loud, but its enough to add a nice punch to the overall sound and male my rearview mirror shake a bit. I'd say it's comparable to what you'd get factory in a mid-2010s luxury sedan, such as an Audi A6 or BMW with the premium sound system. Longevity remains to be seen, but I will update if anything goes wrong with it. So far, so good! 3 Weeks in, and I'm quite satisfied. ... show more
Reviewed in the United States on July 31, 2025 by MK4 Gabe

  • Sub woofer
Size: 8 Inch Powered Underseat Subwoofer
Great product sounds great no issues installing no issues
Reviewed in the United States on August 24, 2025 by wess

  • Poor quality
Size: 8 Inch Powered Underseat Subwoofer
Lasted about a month. Sounded great and was super easy to install. Sub started crackling and then just dead. Already blown. Great idea, poor quality. DO NOT BUY
Reviewed in the United States on June 26, 2024 by Byron

  • A few months in and still enjoying this purchase
Size: 8 Inch Powered Underseat Subwoofer
This amp and sub definitely won't win you any competitions or impress the entire neighborhood when you leave the house. What it will do is fill the missing low end in your car's sound system and make music a lot more enjoyable. I installed in a 1st generation S10 Blazer in which I also have aftermarket rear door and dash speakers. This little sub pushes enough bass to take the stress off my door/dash speakers which both improved my bass performance AND help light up the mid and high range. The result is a really night and day difference from my setup without this sub. For the low price and increased functionality you can't go wrong. It wouldn't fit under my seats so I mounted it to the back of my rear bench which I keep folded down 99% of the time. It's a pretty heavy little amp/sub combo and feels like good quality, metal construction and metal grate over the woofer. I stack stuff on it all the time without any problems/damage. ... show more
Reviewed in the United States on February 12, 2025 by Ward

  • Great little sub as long as your expectations are reasonable
Size: 8 Inch Powered Underseat Subwoofer
This is a fantastic little sub as long as you're not looking to rattle windows. I would put this at the same level as a *nice* OEM subwoofer in terms of power/clarity. Matches the factory sub in my 2012 X5 with the premium sound package, possibly exceeds it. It's also extremely compact and easy to place somewhere out of the way. That said, this isn't any easier to install than a traditional sub/amp combo despite what the ad says. It still requires all the same wiring as a traditional sub; power, ground, and 12v on/off signal. It's a bit disingenuous to advertise it as such when the only difference between this and a traditional sub is the lack of the foot of speaker wire that goes between the amp and sub in a traditional setup. Regardless of that, this is a fantastic little unit. If you're just looking to upgrade a car that came without a sub from the factory and don't expect show-winning performance, this is the unit to get. Update: Still working great over a year later. Highly recommend. ... show more
Reviewed in the United States on January 30, 2024 by C. Holten

  • Reliable, lean, and mean
Size: 8 Inch Powered Underseat Subwoofer
This sucker rocks, wow. I live full time in a camper. I put this sub downstream from a Fosi BT amp with a few 100W bookshelf speakers. Clear, crisp bass for 4 months so far. I run it about 75%. It is the perfect complement in a fully 12V system for that just-below-deafening audio when you need to "feel" it! ... show more
Reviewed in the United States on May 26, 2025 by J M

  • Alot bigger then I expected
Size: 8 Inch Powered Underseat Subwoofer
1) make sure it fits under your seat... try all positions the Lowes and the highest, front back... to check if it fits under your seat. 2) wiring sold separately 3)installation required professional is you don't know much Sound It all depends on the sound and the quality of it. I've noticed on it different quality of sound depending of the sound the bass. But non the less is a upgrade to stock. I like it. Worth the money. ... show more
Reviewed in the United States on October 24, 2024 by Bryan H. Bryan H.

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...