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Q Power

QPower Downfire Dual 8in Underseat Subwoofer Box Compatible with 2009-2026 Ford F-150 SuperCrew and 2017-2026 F-250, F-350 Super Duty

  • Based on 111 reviews
Condition: New
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Availability: 13 left in stock
Fulfilled by Spreetail
Arrives Sunday, Aug 9
Order within 8 hours and 21 minutes
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Style: 8" Dual


Features

  • Subwoofer Enclosure Box for Ford Truck: Upgrade your trucks audio with our 8-inch dual-ported sub box, compatible with 2009-2026 Ford F-150 SuperCrew and 2017-2026 F-250 and F-350 Super Duty
  • Custom Subwoofer Box: This QPower empty speaker box features MDF wood construction and a durable bed-liner finish to help protect your cars interior. It lets you choose the speakers you want
  • Loud Bass: If youre ready for a bass so deep that it shakes your truck, then this is the subwoofer box for you. It has a tuning frequency of 35 Hz and offers 0.8 cu. ft. of air space per sub
  • Easy-to-Install Frontfire Box: Our underseat subwoofer enclosure fits underneath your seat and has a mounting depth of 11 1/4". Its easy to install and hook up
  • QPower: At QPower, we value music and cars just as much as you do. Enjoy driving with your friends and family while your superior sound system sets the mood for the ride

Brand: Q Power


Frequency Response: 35 hertz


Connectivity Technology: wired


Audio Output Mode: Stereo


Mounting Type: Under-Seat


Audio Output Mode: Stereo


Mounting Type: Under-Seat


Enclosure Material: bed liner material


Speaker Type: Subwoofer


Additional Features: Customizable Bass, High-Powered Audio


Antenna Location: For Vehicles, For Computers


Subwoofer Diameter: 8 inches


Color: black


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Touch


Speaker Size: 8 inches


Woofer Diameter: 8 inches


Water Resistance Level: Not Water Resistant


Specific Uses For Product: For Car Audio Systems


Processor Count: 1


Connectivity Technology: wired


Wireless Technology: No Wireless Communication Technology


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: wired


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 inches


Brand: Q Power


Model Number: 197894


Model Name: QBFORDFF09208


Built-In Media: Subwoofer Enclosure


Number of Items: 1


Customer Package Type: FFP


Manufacturer: QPower


Frequency Response: 35 hertz


Number of Audio Channels: 2


Unit Count: 1 Count


Item Dimensions D x W x H: 14"D x 54.5"W x 10.5"H


Compatible Devices: Vehicle Audio System


Compatible with Vehicle Type: Ford F150 Super Crew (2009 to current), Ford F250 and 350 Super Duty (2017 to current)


Power Source: Corded Electric


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 9

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Nice amount of added bass
Style: 8" Dual
Review Image by Jeffrey Monahan
Review Image by Jeffrey Monahan
Fits the little skar 8s just fine. Will not fit a ddaudio 2508 however. Hole is to small and the magnet is to big without adding a spacer on the box. Over box is solid and very happy with the sound and bass output. No port noise and will get decently low. Fits perfectly under the supercrew f150 2019! ... show more
Reviewed in the United States on March 27, 2021 by Jeffrey Monahan
    • Updated review
Style: 8" Dual
Update. I had box reevaluated. Front baffle didn't separate. I was lied to to try to get me to purchase a box. Apologies to seller. Issue was subs didn't sit flush due to the textured lining on the box. Fixed with rope caulk and the sound is amazing for two Skar SDR 8's. Wanted to update my findings and change my review. Box is well worth the money ... show more
Reviewed in the United States on February 20, 2021 by jimmie brewster
    • Best sounding box I put in my truck!
Style: 8" Dual
The quality of the box is unheard of. Sound is deep and clear. There is really not much to say other than that this box beats the brakes off of anything in or near its price.
Reviewed in the United States on March 22, 2022 by Clint Santini
    • Best boom for your buck
Style: 8" Dual
Box came exactly as described, fit the two biggest 8’s I could get my hands on and still had room to spare. Sound quality is incredible in my 2011 f150 super crew.
Reviewed in the United States on September 16, 2021 by Andrew
    • Poorly put together
Style: 8" Dual
Review Image by marvin thomas
Review Image by marvin thomas
Sound great for about 4 hrs then the front face of the box started to crack apart rattles like a tin can. I placed 2 screws in the front to keep it together but that didnt hold because its press wood and just ripped those out after 3 days. Needless to say at least I have something to build from ill just take these deminsions and make my own box. Smh waste of time and money. ... show more
Reviewed in the United States on April 28, 2026 by marvin thomas
    • Solid build
Style: 8" Dual
Review Image by Blue Collar Barista
Review Image by Blue Collar Barista
Dimensions 49.5" wide x 12 5/8" deep. 9" front height, 6" back height. Gives about 2.3 ft³ total. With port displacement closer to a little over 2. Front baffle is ¾ mdf. The rest looks like ⅝. Solid build. Speaker terminals are behind each sub on top of the box. The tuning states 35 hz and man this thing booms. I had 2 skar vd10s in a down fire ported box before, and this box with 2 evl8 subs sound better. Shakes the whole truck. The only con, in my opinion is the small gap in front under the seat. I would also like to see a lower tune like 32hz. Don't get me wrong, with the right subs, this thing booms! But it starts to roll off in the lower 30 hz range. Still a great pre fab box! ... show more
Reviewed in the United States on January 29, 2021 by Blue Collar Barista
    • Very impressed for JL 8W3’s
Style: 8" Dual
I purchased a JL Audio CP208LG-W3v3 and wasn’t happy with the lack of low frequencies it put out. I put the 2 JL 8W3’s (with a JD500/1 amp) under the seat of my 2022 F250 and it is a clean monster now. I previously had 2-JL 12w3’s in a JL Stealthbox in an F150. This is very comparable but not capable of the volume level of the 2-12’s. I’m very very happy with this box and setup. The JL Audio CP208LG-W3v3 was very punchy and wouldn’t play all genres at all in comparison to this box. Well worth getting rid of the storage under the seat to me. ... show more
Reviewed in the United States on October 15, 2024 by Ben Falen
    • Good starter box.
Style: 8" Dual
Overall quality is good. Fits my 19 F-150 just fine. No need for a seat lift. Only thing I would change is the bed liner finish. It’s not very durable. Has already chipped just from getting in and out. Had decent sound. Two skar evl-8
Reviewed in the United States on May 18, 2021 by Ashley

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