UK car audio comparison

Best 6.5-Inch Car Speakers
in 2026.

A practical comparison of car speakers using size, design, power handling and the fitment checks that matter in a real vehicle.

Prices and stock should be checked on the retailer page before purchase.

Our approach. We compare the specifications shown on the retailer product pages and explain who each model suits. This is not a hands-on test.

Our pick

Pioneer TS-G1710F 17cm 280w Dual Cone Coaxial Speakers with Grills

A coaxial option for making a factory system clearer without changing the whole car.

Check price

Full specifications

Our picks compared

This table includes every verified specification available for the products in this roundup. Check the retailer page for the latest price, stock and fitment details.

ProductPriceAvailabilityBrandModelWarrantyProduct TypeSpeaker DesignSizeListed PowerRms PowerTypeShipping WeightFull specifications
Pioneer TS-G1710F 17cm 280w Dual Cone Coaxial Speakers with Grills£28.50In stockPioneerTS-G1710FNot listedPioneerCoaxialNot listed280WNot listedDoor SpeakersNot listed
  • Size Detail: 6-6.5 inch
Kenwood KFC-S1766 Stage Sound Series 17cm Flush Mount 2-Way 2-Speaker System£28.89In stockKenwoodNot listedNot listedCar SpeakersCoaxialNot listed300W30WDoor SpeakersNot listedAll listed fields are shown
JVC CS-J1720X 300W 17cm 2-Way Coaxial Speakers£29.75In stockJVCCS-J1720XNot listedCar SpeakersCoaxialNot listed300WNot listedSpeakersNot listed
  • Size Detail: 6-6.5 inch
  • Subwoofer Design: Active
Juice S620 6.5" 17cm 2-Way Coaxial Car Door or Parcel Shelf Speaker Upgrade, Efficient Power Handling, 300Watts Peak Power, Black£29.99In stockJuiceJuice S6201 Year WarrantyCar SpeakersCoaxial6.5 inch300W40WCoaxial Speakers, Door Speakers1 kg
  • Product Detail: 6-6.5 inch
MTA ANC7697323 6.5" Coaxial Speaker System£29.99In stockMTANot listedNot listedCar SpeakersCoaxial6.5 inch50W50 Watts Max Power: 100 Watts Frequency Response: 70 – 16,000 Hz Efficiency (Sensitivity): 92 dB IdeCoaxial SpeakersNot listedAll listed fields are shown
In Phase SXT1735 6.5" Shallow Fit 16.5cm 3-Way, 260 Watts Coaxial Speakers with Neodymium Magnet£33.50In stockIn PhaseSXT17352 Year WarrantyCar SpeakersCoaxial6.5 inch260W40WDoor Speakers1 kg
  • Size Detail: 6-6.5 inch

Product notes

What each pick is best at

Pioneer TS-G1710F 17cm 280w Dual Cone Coaxial Speakers with Grills

Best overall speaker upgrade

Pioneer TS-G1710F 17cm 280w Dual Cone Coaxial Speakers with Grills

A coaxial option for making a factory system clearer without changing the whole car.

What we don't like

  • Unlike some alternatives, the listing does not show a comparable power figure, so matching it to the rest of the system takes more checking.
  • The fixed coaxial layout offers less placement flexibility than a component set, and the speaker size and depth still need measuring.
Price£28.50
AvailabilityIn stock
Listed Power280W
ModelTS-G1710F
Speaker DesignCoaxial
BrandPioneer
Product TypePioneer
Size Detail6-6.5 inch
TypeDoor Speakers
Check CarAudioCentre.co.uk
Kenwood KFC-S1766 Stage Sound Series 17cm Flush Mount 2-Way 2-Speaker System

Best for clearer front sound

Kenwood KFC-S1766 Stage Sound Series 17cm Flush Mount 2-Way 2-Speaker System

A coaxial option for making a factory system clearer without changing the whole car.

What we don't like

  • It is £0.39 above the cheapest pick without a clearly unique listed specification to explain the difference.
  • The fixed coaxial layout offers less placement flexibility than a component set, and the speaker size and depth still need measuring.
Price£28.89
AvailabilityIn stock
Listed Power300W
Rms Power30W
Speaker DesignCoaxial
BrandKenwood
Product TypeCar Speakers
TypeDoor Speakers
Check CarAudioCentre.co.uk
JVC CS-J1720X 300W 17cm 2-Way Coaxial Speakers

Best coaxial-style upgrade

JVC CS-J1720X 300W 17cm 2-Way Coaxial Speakers

A coaxial option for making a factory system clearer without changing the whole car.

What we don't like

  • It is £1.25 above the cheapest pick without a clearly unique listed specification to explain the difference.
  • The fixed coaxial layout offers less placement flexibility than a component set, and the speaker size and depth still need measuring.
Price£29.75
AvailabilityIn stock
Listed Power300W
ModelCS-J1720X
Speaker DesignCoaxial
Subwoofer DesignActive
BrandJVC
Product TypeCar Speakers
Size Detail6-6.5 inch
TypeSpeakers
Check CarAudioCentre.co.uk
Juice S620 6.5" 17cm 2-Way Coaxial Car Door or Parcel Shelf Speaker Upgrade, Efficient Power Handling, 300Watts Peak Power, Black

Best for tighter budgets

Juice S620 6.5" 17cm 2-Way Coaxial Car Door or Parcel Shelf Speaker Upgrade, Efficient Power Handling, 300Watts Peak Power, Black

A 6.5-inch coaxial option for making a factory system clearer without changing the whole car.

What we don't like

  • It is £1.49 above the cheapest pick without a clearly unique listed specification to explain the difference.
  • The fixed coaxial layout offers less placement flexibility than a component set, and the speaker size and depth still need measuring.
Price£29.99
AvailabilityIn stock
Listed Power300W
ModelJuice S620
Rms Power40W
Size6.5 inch
Speaker DesignCoaxial
Warranty1 Year Warranty
BrandJuice
Product Detail6-6.5 inch
Product TypeCar Speakers
Shipping Weight1 kg
TypeCoaxial Speakers, Door Speakers
Check CarAudioCentre.co.uk
MTA ANC7697323 6.5" Coaxial Speaker System

Best high-output option

MTA ANC7697323 6.5" Coaxial Speaker System

A 6.5-inch coaxial option for making a factory system clearer without changing the whole car.

What we don't like

  • It is £1.49 above the cheapest pick, so the higher price depends on whether the distinct 50W power suits the installation.
  • The fixed coaxial layout offers less placement flexibility than a component set, and the speaker size and depth still need measuring.
Price£29.99
AvailabilityIn stock
Listed Power50W
Rms Power50 Watts Max Power: 100 Watts Frequency Response: 70 – 16,000 Hz Efficiency (Sensitivity): 92 dB Ide
Size6.5 inch
Speaker DesignCoaxial
BrandMTA
Product TypeCar Speakers
TypeCoaxial Speakers
Check CarAudioCentre.co.uk
In Phase SXT1735 6.5" Shallow Fit 16.5cm 3-Way, 260 Watts Coaxial Speakers with Neodymium Magnet

Best for a full speaker refresh

In Phase SXT1735 6.5" Shallow Fit 16.5cm 3-Way, 260 Watts Coaxial Speakers with Neodymium Magnet

A 6.5-inch coaxial option for making a factory system clearer without changing the whole car.

What we don't like

  • It is £5.00 above the cheapest pick, so the higher price depends on whether the distinct 260W power suits the installation.
  • The fixed coaxial layout offers less placement flexibility than a component set, and the speaker size and depth still need measuring.
Price£33.50
AvailabilityIn stock
Listed Power260W
ModelSXT1735
Rms Power40W
Size6.5 inch
Speaker DesignCoaxial
Warranty2 Year Warranty
BrandIn Phase
Product TypeCar Speakers
Shipping Weight1 kg
Size Detail6-6.5 inch
TypeDoor Speakers
Check CarAudioCentre.co.uk

Buying guide

What to check before ordering

Measure the original speaker opening and mounting depth. Compare RMS power and impedance with the existing stereo or planned amplifier, and check whether grilles, tweeters or crossovers are included.

Use the model number as the final reference. Retailer images and prices can change, and vehicle fitment should be confirmed for the exact make, model and year.