3.5" Coaxial Car Speakers

Upgrade the smallest factory speaker locations in your vehicle with 12 Volt Outlet's selection of 3.5" coaxial car speakers — compact full-range drivers that deliver dramatically improved sound quality over factory speakers in dash, door, and rear locations where only a 3.5" driver will fit.

The 3.5" coaxial is the go-to replacement for factory speaker locations found in dashboards, front door sail panels, and secondary speaker positions across a wide range of vehicles — particularly Japanese and European models where small-diameter dash and door speakers are common. Despite their compact size, quality 3.5" coaxials produce a full-range sound that far outperforms the thin, limited factory drivers they replace — with better sensitivity, cleaner midrange, and integrated tweeter reproduction that opens up the top end of the audio spectrum.

As a coaxial driver, the woofer and tweeter are combined into a single unit with a built-in passive crossover — no external components required. Just swap out the factory speaker, connect to the existing wiring, and immediately experience the improvement. Compatible with factory head units and aftermarket receivers alike, 3.5" coaxials are an effortless upgrade that makes a noticeable difference from the first track.

We carry 3.5" coaxial car speakers from the most respected brands in the industry including Rockford Fosgate, AudioControl, Massive Audio, American Bass, Deaf Bonce, DC Audio, Powerbass, Hifonics, Jensen, JVC, Infinity, JBL, and more — brands that build full-range performance into every size driver they make.

Free shipping on orders over $100. Shop 3.5" coaxial car speakers at 12 Volt Outlet today — and upgrade every speaker in your vehicle, down to the smallest one.