5x7 and 6x8 Car Speakers

The 2026 buying guide to 5x7 and 6x8 car speakers

If your car came with an oval speaker in the door, the replacement you need is a 5x7 or a 6x8. The two sizes share the same bolt pattern, so a 6x8 will fit a 5x7 aperture and the listings here cover both. Ford has used this size for decades, and it also appears across Mazda, Volvo, Land Rover and several Jaguar models. This guide explains how to choose well.

Why the oval format is worth keeping

An oval cone gives you roughly twenty per cent more surface area than a 5.25 inch round driver while occupying a shallower, wider hole. That matters in doors where the window mechanism sits close behind the trim panel. You get the mid bass output of a larger speaker without the mounting depth problems, which is precisely why manufacturers chose the shape in the first place.

What separates a good set from an average one

• Cone material. Polypropylene and treated paper both work well. Stiffer cones give tighter bass, softer cones give a warmer midrange.
• Surround. Rubber surrounds outlast foam by years in a damp British door and keep their compliance in cold weather.
• Motor size. A larger magnet means better cone control, which is audible as cleaner bass at volume.
• Mounting depth. Check the figure against your door before ordering, particularly on Focus and Mondeo models.

Matching power to your system

• Factory head unit. Choose sensitivity above 90dB so the speakers play loudly on roughly eighteen watts per channel.
• Aftermarket head unit. Around twenty two watts per channel, enough for most coaxials in this range.
• Four channel amplifier. Sixty to one hundred watts per channel unlocks the full dynamic range of a component set.

Brand quality at a glance

• Kicker. The broadest selection here, known for efficiency and strong mid bass in Ford applications.
• Focal. Premium French drivers with exceptional vocal clarity for sound quality focused builds.
• Kenwood. Sensible, well priced coaxials that improve a factory system straight away.
• Alpine. Balanced and accurate, a natural partner for an amplified front stage.
• Phoenix Gold, Recoil, Pioneer and JVC. Further options spanning budget replacements to enthusiast grade sets.

Compatibility and fitting

• Fascia adapter. Needed if a new stereo is going in at the same time so it sits neatly in the dashboard.
• ISO harness. Connects the new head unit to the factory loom without cutting the original wiring.
• Steering wheel control adapter. Preserves the wheel buttons for volume, track skip and phone calls.
• Aerial adapter. Converts the vehicle antenna plug to a standard DIN fitting for full radio reception.
• Speaker adapter rings. Most Ford and Mazda doors need a ring to space the speaker clear of the window glass.

Common fitting mistakes to avoid

The two errors we see most often are speakers mounted without sealing foam and tweeters left facing the floor. Air leaking around the frame cancels bass before it reaches your ears, and a tweeter aimed at the carpet loses all its detail. Seal the perimeter properly and, on component sets, mount the tweeter high on the sail panel angled towards the opposite headrest.

What to budget in 2026

• Under fifty five pounds. Direct replacement coaxials that restore clarity and volume.
• Fifty five to one hundred and thirty pounds. Better build quality with genuine mid bass weight and smoother treble.
• Above one hundred and thirty pounds. Component and reference sets designed for amplified systems.

Why buy from Bass Junkies

Bass Junkies has been supplying and installing car audio since 1995, and our Wolverhampton workshop fits oval speakers into Fords and Mazdas almost every week. That means we know which sets clear the window mechanism, which need a spacer and which combinations sound best on factory power. Call us on 01902 863 005 with your registration and we will confirm the right size and adapters before you place the order.