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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.
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Availability:
In Stock.
Arrives
Sunday, Nov 15
Recently Viewed
At a glance
- Condition
- New
- Size
- 10"
- Style
- Dual 4 Ohm
- Model
- CT-Sounds-Bio-10-D4
- Dimensions
- 10.31"D x 10.31"W x 5.63"H
- Weight
- 4.91 kg
- Audio Output Mode
- Stereo
- Warranty
- 1 year manufacturer
- Works with
- Laptop, Smartphone, Tablet, Television
Features 5
- 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
Specs 36
| Brand | CT Sounds |
|---|---|
| Speaker Maximum Output Power | 800 watts |
| Connectivity Technology | Wired |
| Audio Output Mode | Stereo |
| Mounting Type | Flush Mount |
| Enclosure Material | Iron |
| Speaker Type | Subwoofer |
| Additional Features | Hi Res Audio |
| Antenna Location | Car Audio |
| Subwoofer Diameter | 10 inches |
| Is Waterproof | FALSE |
| Warranty Type | Limited |
| Control Method | Remote |
| Speaker Size | 10 inches |
| Woofer Diameter | 10 inches |
| Water Resistance Level | Not Water Resistant |
| Controller Type | Voice control |
| Number of Audio Channels | 2.1 |
| Impedance | 4 ohm |
| Wireless Technology | No wireless communication technology |
| Subwoofer Connectivity Technology | Wired |
| Connectivity Protocol | Wired |
| Audio Driver Type | Dynamic Driver |
| Audio Driver Size | 10 inches |
| Number Of Circuits | 1 |
| Model Number | CT-Sounds-Bio-10-D4 |
| Model Name | BIO-10-D4 |
| Built-In Media | Decal Sticker, Product Manual |
| Number of Items | 1 |
| Customer Package Type | FFP |
| UPC | 850044969388 |
| Manufacturer | CT Sounds |
| Item Dimensions D x W x H | 10.31"D x 10.31"W x 5.63"H |
| Item Weight | 4.91 kg |
| Compatible with Vehicle Type | Car |
| Power Source | Corded Electric |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Nov 15
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Good
Size: 8"
Style: Dual 4 Ohm
Sounds great and nice little punch to it, I have it in a 1 cubic ft ported box with a JL Audio JX200 and it works perfectly, i can smell the glue heating up but doesn’t have distortion, for its size and price this 8 inch is a real budget bang for your buck
Reviewed in the United States on June 29, 2026 by Joseph
Strong reliable speakers and give you way more than your money's worth
Size: 10"
Style: Dual 4 Ohm
One of the best speakers I ever bought Baseline on this hit hard and I got it for my Kei van and if you guys know about those vans or trucks there's not a lot of room because of how small they are so I have a hundred Watt amp and let me say when this thing plays you would think that it was playing on a stronger amp and the way it sounded so clean and so pristine that people stop me and ask me what kind of speakers you got in there and I show them they're like I don't even know this brand but it sounds good I'm like yeah I would buy from them again love it
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Reviewed in the United States on June 16, 2026 by Punta
Hits hard!
Size: 10"
Style: Dual 4 Ohm
Hits pretty hard and clear! I have it a small sealed box, do pretty good! Bet in a ported box they would really hit! Love em!
Reviewed in the United States on September 26, 2026 by Corey H
Conforme pero con asteriscos
Size: 8"
Style: Dual 4 Ohm
Lo compré para la casa pero resultó un poco difícil de mover aún usando el Aiyima A3001, no tenía suficiente voltaje de salida, cableado a 2 ohmios y con todo el volumen, recibiendo la señal del amplificador SMSL salida SUB de rango completo. Fue necesario intercalar el amplificador de línea Douk Audio L1 para aumentar la potencia de entrada al Aiyima en la posición sub con filtro paso bajo cortado en los 75Hz. Es un sub de nivel de entrada para car audio u dependiendo de su espacio sonoro necesitará hacer ajustes, localización ideal para evitar resonancia, suciedad de bajo y nitidez. Construí la caja sellada con MDF de 18mm y doble bafle en las caras frontal y trasera. Estaré actualizando subiendo un vídeo grabado en vivo ya que la app no permite subir archivos de video guardados en el celular. Me puedo dar por bien servido con este sub, pero ya viene en camino la versión con el Dayton Audio SS8-22 cuya calidad audiofila para sonido en casa es superior pero pagando 3 veces más.
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Reviewed in the United States on August 18, 2026 by Alberto Lara
Hard and deep bass when paired with 32hz tuned box and tuning amp right
Size: 10"
Style: Dual 4 Ohm
I bought two CT Sounds Bio 10” 800-Watt Dual 4-Ohm subwoofers and paired them with a 2000-watt amp (about 1000W RMS) along with a SKAR SK2X10V enclosure. Right out of the gate, the setup was impressive. The sound is crisp, clean, and hits way harder than expected for 10s. Inside the cab, the bass is insanely strong—tight when it needs to be, but still able to shake the whole truck when the track calls for it. They don’t sound muddy or sloppy, even when pushed, which really surprised me for the price range. Paired with the right tuning, these subs really come alive. The enclosure helped a lot too, and together everything feels well-matched and balanced. For daily listening, they’re more than enough and still have headroom when you want to turn it up. Overall, I’m very happy with the setup—clean output, strong bass, and a setup that hits harder than you’d expect in the cab.
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Reviewed in the United States on May 3, 2026 by Cameron bunch
I thought i needed a vented box.
Size: 10"
Style: Dual 4 Ohm
Put this in sealed box, Very impressed with the sound. Very responsive to basslines in rap.
Reviewed in the United States on August 8, 2026 by Anthony T. Lowe
My go to sub!
Size: 8"
Style: Dual 4 Ohm
This thing hits! Very nice sub for the power it handles great and hits hard. Looks very nice on a completed set up! Value for what you get it’s amazing! My second one so far
Reviewed in the United States on September 6, 2026 by Kenneth
Ct sounds
Size: 10"
Style: Dual 4 Ohm
Easy hook up. Sounds great
Reviewed in the United States on September 2, 2026 by Andre