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BIO-8 300 Watts RMS 8 Inch Car Subwoofer

BIO-8 300 Watts RMS 8 Inch Car Subwoofer

5· 1 rating

Best price now

$59.99at CT SOUNDSObserved at 8:43 PM

Compared across 3 stores. Prices are checked against each store and labelled with when.

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Quick answers

Where is the BIO-8 300 Watts RMS 8 Inch Car Subwoofer cheapest?
At CT SOUNDS, for $59.99, as of our latest check.
What do buyers say about the BIO-8 300 Watts RMS 8 Inch Car Subwoofer?
Rated 5 out of 5 from 1 ratings. Buyers like: Great, deep and clear bass for the price point; Hits hard and handles power well; Clear sound, outperforms larger subs.
Where can I buy the BIO-8 300 Watts RMS 8 Inch Car Subwoofer?
4 stores we checked sell it, including CT SOUNDS, eBay, Newegg.com, CT Sounds.

BIO-8 300 Watts RMS 8 Inch Car Subwoofer prices at every store

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  • CT SOUNDSNew

    In stockReturn policy

    $59.99Observed at 8:43 PM
    Visit store
  • Newegg.comNew

    In stockSold by JMDesign

    $99.99Observed Nov 1, 2026, 6:15 PM
    Visit store
  • eBayPre-owned

    Availability unknown

    $50.00Observed Nov 1, 2026, 6:15 PM
    Visit store

Also available at

  • CT SoundsCheck price at CT Sounds

BIO-8 300 Watts RMS 8 Inch Car Subwoofer price history

Lowest price we've seen: $59.99 on Nov 1 at CT Sounds. Tracked across 2 stores since Nov 1.

From CT SOUNDS

  • Conservatively rated 300 watts RMS, 600 watts max
  • 2-inch 4-layer high-temperature copper voice coil
  • High narrow foam surround for precise, clear bass
  • Advanced air cooling system for extended listening sessions
  • Pairs with CT Sounds pre-fabricated subwoofer enclosures
  • Available in dual 2 ohm and dual 4 ohm voice coil configurations
Sizes
DUAL 2 OHM, DUAL 4 OHM
Materials
Pressed composite paper cone; high narrow foam surround; single stacked Y25 ferrite magnet; stamped steel basket; 5.3" single-layer poly-cotton spider; single r
Fit
Mounting depth 3.82"; cutout diameter 7.17"; overall diameter 8.39"
Shipping
Free shipping; orders before 4 PM CST ship same day

About the BIO-8 300 Watts RMS 8 Inch Car Subwoofer

Details

CT Sounds is proud to introduce the Bio 8” Car Subwoofer; our latest entry-level car audio subwoofer line designed to kickstart your journey into the world of car audio. The Bio 8” boasts a conservatively rated 300-watt rms power rating and delivers impressive performance while remaining budget-friendly.

Quick Facts:

RMS Power:

300 Watts

MAX Power:

600 Watts

Voice Coil Configuration:

Dual 2 Ohm

Push Terminal Size:

12 Gauge

The Bio 8” subwoofer comes equipped with a 2-inch - 4-layer high-temperature copper voice coil and a high narrow foam surround, providing precise and clear bass reproduction. Its advanced air cooling system will keep things running smoothly even during extended listening sessions, ensuring reliable performance when you need it most.

Designed to seamlessly pair with our pre-fabricated subwoofer enclosures, the Bio 8” Subwoofer offers a hassle-free solution for those who prefer not to build their own subwoofer box. When combined with our subwoofer enclosures, customers can expect deep bass on the lows, delivering an immersive audio experience that's sure to impress.

Specs

General Specifications:

Product Type:

Car Subwoofer

Subwoofer Size:

8"

Voice Coil Configuration:

Dual 2 Ohm

RMS Power:

300 Watts

MAX Power:

What buyers say

Buyers like
  • Great, deep and clear bass for the price point
  • Hits hard and handles power well
  • Clear sound, outperforms larger subs
  • Works as a factory subwoofer replacement
  • Loud output in a well-built enclosure

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Specifications

RMS power
300 WattSource
Max power
600 wattsSource
Speaker size
8"Source
Impedance
Dual 2 OhmSource
Voice coil
2-Inch - 4-Layer Copper Voice CoilSource
Mounting depth
3.82”Source
Cutout diameter
7.17”Source
Weight
3.5 kgSource
Product dimensions
21.31 x 21.31 x 11.91 cmSource
Connectivity
WiredSource
Input voltage
12 volts_of_direct_currentSource
Model number
BIO-8-D2Source
RMS Output
300 Watt
Maximum Output
600 W
Vehicle Type
Car
Waterproof
No
Dual Voice Coil
Yes
Speaker Type
Subwoofer
Sensitivity
83.4 dB
Mounting Type
Flush Mount
Installation Type
Flush Mount
Depth
8.39"
Height
4.69"
Width
8.39"
RV208P
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