Kicker DSC670 6.75-Inch Coaxial Car Speakers
Overview
The Kicker DSC670 6.75-Inch Coaxial Car Speakers sit squarely in the mid-range upgrade category — not a competition audio build, but a meaningful step up from whatever thin-sounding drivers came bolted into your doors at the factory. Kicker has been a trusted name in American car audio for decades, and this speaker pair carries that reputation without inflating the price into audiophile territory. The 6.75-inch sizing is specific enough to matter: not every vehicle uses it, but those that do — think older domestic trucks and sedans — will find these drop right in. You are getting a pair aimed squarely at everyday drivers who simply want their music to sound like music again.
Features & Benefits
These Kicker coaxials pack a 240-watt peak rating with 120 watts of continuous RMS power, which means they handle moderate amplification cleanly without straining. Running at 4 ohms, they are compatible with virtually any stock or aftermarket head unit — no dedicated amp required. The 90 dB sensitivity is genuinely useful: these speakers get loud on modest power, which matters if you are running a factory radio. The small 0.5-inch tweeter handles treble detail well enough for everyday listening, pairing acceptably with the woofer cone across a broad frequency range. A soft-touch trim ring completes the installation with a clean, finished look that would not look out of place in a newer vehicle interior.
Best For
This speaker pair is a natural fit for anyone swapping out worn factory speakers in vehicles with 6.75-inch door cutouts — a size common in older Ford F-150s, GM trucks, and various Chrysler models, among others. Always double-check your vehicle's specific cutout dimensions before ordering, since depth clearance can vary even within the same model line. The DSC670s shine brightest for daily commuters who want cleaner vocals and better midrange without routing wires to an external amplifier. If you are chasing earth-shaking bass, these will not scratch that itch alone — that is a job for a dedicated subwoofer. For a straightforward speaker swap that delivers real, audible improvement over stock, though, they are hard to argue with.
User Feedback
Owners consistently point to the jump in clarity as the standout win — voices and instruments that sounded muddy through factory speakers come through noticeably cleaner with these Kicker coaxials installed. On the flip side, a handful of buyers have flagged installation depth as something to plan around, particularly in doors with tight clearances where a spacer or adapter ring may be needed. Bass response draws mixed reactions: most agree it is solid for a coaxial, but those expecting real low-end punch are often let down without a separate subwoofer in the mix. Some listeners find the tweeter a touch bright at high volumes, though opinions split on that. Long-term owners report decent build quality, and the one-year warranty adds a modest layer of assurance.
Pros
- Vocal clarity and midrange detail improve dramatically compared to worn or thin factory speakers.
- The 4-ohm impedance means these Kicker coaxials work directly with virtually any stock head unit.
- High 90 dB sensitivity lets the speakers get genuinely loud without needing an external amp.
- Installation is a straightforward swap in most 6.75-inch cutout vehicles — no custom work required.
- The soft-touch trim ring gives door panels a clean, finished appearance after installation.
- Broad frequency response handles everything from spoken word to complex musical arrangements competently.
- Kicker is a well-established brand with a strong reputation for consistent build quality in this segment.
- Ships as a matched pair, so both sides of the car are covered out of the box.
- The 1-year limited warranty provides basic peace of mind for a budget-to-mid-range purchase.
- Power headroom at 120W RMS means the DSC670s stay composed even when you push the volume.
Cons
- Bass output is adequate at best — do not expect satisfying low-end without adding a separate subwoofer.
- Some vehicles with tight door cavities will need a spacer ring that is not included in the package.
- The 0.5-inch tweeter can sound a bit harsh or bright when pushed at high volumes for extended periods.
- Fitment is limited strictly to 6.75-inch cutouts, ruling out a large portion of vehicle models.
- Not a great match for listeners who want a more refined, component-style separation of drivers.
- Long-term durability data beyond one to two years is mixed and not well documented across user reviews.
- The included mounting hardware may not suit all vehicle door configurations without additional sourcing.
- This speaker pair will not satisfy buyers already accustomed to aftermarket audio systems with amplification.
Ratings
The scores below reflect our AI-driven analysis of verified global buyer reviews for the Kicker DSC670 6.75-Inch Coaxial Car Speakers, with spam, bot-generated, and incentivized submissions actively filtered out before any scoring was applied. We evaluated this speaker pair across categories that real drivers actually care about — from daily sound quality to installation ease — and the results transparently capture both what these coaxials do well and where they fall short.
Sound Clarity
Bass Response
Treble & Highs
Value for Money
Installation Ease
Build Quality
Vehicle Fitment Range
Power Handling
Sensitivity & Volume
Midrange Performance
Aesthetic Finish
Durability Over Time
Warranty & Support
Suitable for:
The Kicker DSC670 6.75-Inch Coaxial Car Speakers are an excellent fit for everyday drivers who are tired of the flat, lifeless sound that comes with most factory audio setups and want a real improvement without tearing apart their dash or wiring in an amplifier. If your vehicle — particularly older Ford trucks, GM SUVs, or Chrysler sedans — uses a 6.75-inch door speaker slot, this speaker pair slots right in without custom fabrication or adapter plates in most cases. Commuters who spend significant time in their cars and care about how vocals and acoustic instruments sound will notice an immediate, satisfying difference over stock units. These are also a smart pick for DIY installers working with a modest budget who want a brand with a proven track record rather than an unknown import. If clean, clear midrange and the ability to run directly off a head unit are your priorities, this speaker pair delivers that reliably.
Not suitable for:
The Kicker DSC670 6.75-Inch Coaxial Car Speakers are not the right tool for buyers chasing deep, room-filling bass — at 6.75 inches, no coaxial speaker of this type can replace a dedicated subwoofer, and expecting it to do so will leave you frustrated. Serious audio enthusiasts building a high-output system around an external amplifier and component speakers will find the DSC670s underwhelming compared to purpose-built separates at a similar combined cost. Anyone with a vehicle that has tight door cavity depth should also proceed carefully, as installation may require spacer rings that are not always included in the box. If your cutout size is anything other than 6.75 inches, these simply will not fit without modification — always verify your vehicle specs before ordering. And if long tweeter sessions at high volume are your norm, the somewhat bright high-frequency character some users report may become fatiguing over time.
Specifications
- Speaker Size: Each driver measures 6.75 inches (165mm) in diameter, a specific sizing that fits select domestic vehicle door and rear deck cutouts.
- Speaker Type: These are 2-way coaxial speakers, combining a woofer cone and a tweeter into a single unit for simplified installation.
- Peak Power: The speakers are rated to handle up to 240 watts of peak power per pair under brief transient conditions.
- RMS Power: Continuous RMS power handling is rated at 120 watts, reflecting the sustained output level the speakers can manage without distortion.
- Impedance: Nominal impedance is 4 ohms, which ensures broad compatibility with both factory head units and most aftermarket receivers.
- Sensitivity: Sensitivity is rated at 90 dB, meaning these speakers produce a solid volume level from relatively modest power input.
- Frequency Response: The drivers cover a frequency range of 40Hz to 20kHz, spanning from moderate bass through the upper limit of human hearing.
- Tweeter Size: The integrated tweeter measures 0.5 inches in diameter and handles high-frequency reproduction within the coaxial assembly.
- Woofer Diameter: The primary woofer cone measures 6.75 inches and is responsible for midrange and low-frequency audio reproduction.
- Connectivity: These speakers use a wired coaxial connection and are designed for standard automotive speaker wiring harnesses.
- Output Mode: Audio output is stereo, configured as a 2.0 channel setup intended for left and right door or dash placement.
- Item Weight: The full package weighs approximately 4.45 pounds, accounting for both speakers and included mounting hardware.
- Dimensions: Product dimensions are approximately 7.38″ deep by 6.38″ wide by 7.38″ high as packaged.
- Finish & Color: The speakers feature a black finish with a soft-touch trim ring designed to blend cleanly with most vehicle interior door panels.
- Warranty: Kicker covers these speakers with a 1-year limited warranty against manufacturing defects from the date of purchase.
- Recommended Use: These speakers are designed specifically for automotive applications, including door, dash, and rear deck speaker replacements.
- Package Contents: The package includes one matched pair of coaxial speakers along with standard mounting hardware for installation.
- Manufacturer: These speakers are manufactured by Stillwater Designs, the American company behind the Kicker brand, based in Stillwater, Oklahoma.
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