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CT Sounds

CT Sounds Bio 10” 800-Watt Dual 4-Ohm Car Subwoofer

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Mar 9
Order within 1 hour and 45 minutes
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Size: 10"


Style: Dual 4 Ohm


Features

  • 10 Dual 4-Ohm Car Subwoofer
  • RMS Power: 400 Watt | Max Power: 800 Watt
  • 2.4 Inch - 4 Layer Copper Voice Coil | Single-Stacked Motor Assembly
  • Advanced Air Cooling System | Low Carbon Iron Zinc Bottom Plate
  • Mounting Depth: 4.69 | Cutout Diameter: 9.09

Brand: CT Sounds


Speaker Maximum Output Power: 800 Watts


Connectivity Technology: Wired


Audio Output Mode: Stereo


Mounting Type: Flush Mount


Model Name: BIO-10-D4


Speaker Type: Subwoofer


Special Feature: Hi Res Audio


Recommended Uses For Product: Car Audio


Compatible Devices: Laptop, Smartphone, Tablet, Television


Subwoofer Diameter: 10 Inches


Surround Sound Channel Configuration: 2.1


Included Components: Decal Sticker, Product Manual


Product Dimensions: 10.31"D x 10.31"W x 5.63"H


Item Weight: 4.91 Kilograms


Impedance: 4 Ohms


Is Waterproof: FALSE


Warranty Type: Limited


Number of Items: 1


Control Method: Remote


Speaker Size: 10 Inches


Power Source: Corded Electric


Woofer Diameter: 10 Inches


Customer Package Type: FFP


Audio Driver Type: Dynamic Driver


Audio Driver Size: 10 Inches


Subwoofer Connectivity Technology: Wired


Number Of Circuits: 1


Specific Uses For Product: Car Audio


UPC: 850044969388


Style: Dual 4 Ohm


Manufacturer: CT Sounds


Shape: Rectangular prism


Set Name: Single


Item Weight: 10.8 pounds


Item model number: CT-Sounds-Bio-10-D4


Date First Available: October 5, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 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.

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Top Amazon Reviews

    • very happy with sub for z906
Size: 8" Style: Dual 4 Ohm
Review Image by PCM PCM
Used this 8" sub as a direct replacement for the Logitech z906 5.1 channel sub. Works better than I could have hoped, it has really improved the system for music listening. No more muddy, boomy bass. Just had to wire the dual 4 ohm in series to get 8 ohm. Even the screw holes lined up, it was an easy swap. Hope this helps some one looking for a replacement. ... show more
Reviewed in the United States on December 9, 2025 by PCM PCM
    • Skar who?
Size: 10" Style: Dual 4 Ohm
It does the thing. I don’t have it cranked up by any means.. but sounds great.
Reviewed in the United States on February 2, 2026 by Jordan Garcia
    • Great quality
Size: 8" Style: Dual 4 Ohm
Worth every penny. The bass is deep but crystal clear.
Reviewed in the United States on October 10, 2025 by Deon
    • Loud!
Size: 10" Style: Dual 4 Ohm
Hooked this up to a little 24v battery powered Bluetooth Amplifier for a speaker box build. Vibrates the floor below and above. Very pleased so far. Immediately bought an 8 inch for another build.
Reviewed in the United States on August 22, 2025 by mc
    • 8in sub
Size: 8" Style: Dual 4 Ohm
This speaker is awesome!!!
Reviewed in the United States on January 9, 2026 by ashairebeal
    • Extremely satisfied
Size: 10" Style: Dual 4 Ohm
Was very skeptical when I bought these for the price . But couldn’t be more happy with there performance . You want be disappointed if you buy these . I have them in my 2006 sierra 1500 and they hit as good as any expensive speaker that I have ever purchased . Will be adding 2 of there 18 to my dually . ... show more
Reviewed in the United States on January 5, 2026 by Keith Cleveland
    • Disappointed in quality and service from CT Sounds...
Size: 8" Style: Dual 2 Ohm
Review Image by Unknown Unknown
Review Image by Unknown Unknown
Review Image by Unknown Unknown
Ordered 3 of the 8" Dual 2-Ohm Subs for some bump in the ride. First one showed up earlier then expected, upon inspecting the subwoofer i noticed some damage to the side of the magnet which didnt look right to me. I did order all 3 brand new so just wondering if anyone else had the same issue but figured I'd just contact ct sounds and see what they think. Got a reply after sending pictures of the damaged area on the magnet, after reviewing they stated does not affect performance of the sub. So im confused cause im not trying to be picky but I dont like something that looks damage or used if I paid for a new product. Smh well contacted Amazon for a replacement and now I have to wait even longer. Mind you I never tested the sub or used it. Just opened the package to inspect. After researching and looking for decent subs, ct sounds looked like a winner but now I dont think so. Sorry for the rant but look somewhere else for 8" subs! P.S. still waiting on the other 2 that should of been shipped all together.. smh 2X ... show more
Reviewed in the United States on November 26, 2025 by Unknown Unknown
    • Cheap doesn’t mean cheap
Size: 10" Style: Dual 4 Ohm
Great sub at a very reasonable price I replaced my stock sub on my ram and built a custom box for the CT sub and now I got boom. Shipping was fast and sub was well protected, looking forward to buying more gear from CT audio.
Reviewed in the United States on November 20, 2025 by David P.

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