
BIO-8 300 Watts RMS 8 Inch Car Subwoofer
5Best price now
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 - Newegg.comNew
In stockSold by JMDesign
$99.99Observed Nov 1, 2026, 6:15 PM - eBayPre-owned
Availability unknown
$50.00Observed Nov 1, 2026, 6:15 PM
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
- 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






