JL Audio C1-400 Speakers

Bottom Line

The JL Audio C1-400 x 4 speakers punch above their weight in sound quality for the size and price, making them a solid choice if you want clear, balanced audio without upgrading to larger, more expensive speakers. Just keep in mind that some adjustment in your head unit’s settings and installation effort may be required to unlock their best performance. If you want deeper bass or a bigger soundstage, you might want to look at bigger coaxial speakers, but for compact setups, the C1-400 x 4 deliver impressive value and quality.