Mazda CX-9 Speaker Size

Dashboard Speaker

Front Door Panel Speaker

Rear Door Panel Speaker

Center Dash Speaker

Rear Speaker

Mazda CX-9 Speaker FAQ

What speakers should I replace first in my Mazda CX-9 for the biggest sound improvement?

Replace the front door panel 6 x 8 inch speakers first. These handle most of your music's frequency range and sit closest to your ears. The front doors typically get around 15-25 watts RMS from the factory amplifier, so upgrading here gives immediate impact. Component speakers work best if you want crisp highs - they separate the tweeter from the woofer. But coaxial speakers are simpler to install and still deliver solid improvement over factory units.

Can I use component speakers in all the 6 x 8 inch locations in my Mazda CX-9?

Yes, but prioritize the front doors for component speakers. The rear door panels and rear deck can handle coaxials just fine since they're mainly for fill sound. Component speakers need separate tweeter mounting - the CX-9 front doors usually have decent tweeter locations. Rear locations might not. You'll want components that can handle 4-ohm loads since most factory systems run that impedance. The crossover networks should fit behind the door panels, though space gets tight sometimes.

What's the difference between coaxial and full-range speakers for the Mazda CX-9 dashboard location?

They're essentially the same thing for the 3.5 inch dashboard speakers. Full-range just means the speaker reproduces multiple frequencies - which coaxials do by combining a woofer and tweeter. The dashboard location handles midrange frequencies around 500-5000 Hz mostly. These smaller speakers won't produce much bass anyway. Look for speakers with good sensitivity ratings - maybe 88 dB or higher - since the dashboard position doesn't get much power. The center dash location particularly benefits from clear vocal reproduction.

How much power do the factory speakers in my Mazda CX-9 typically receive?

The 6 x 8 inch speakers probably get 15-25 watts RMS per channel. The 3.5 inch dashboard speakers receive less - maybe 8-15 watts RMS. Factory amplifiers rarely push their rated power continuously though. Your replacement speakers should handle these power levels easily. Most aftermarket 6 x 8 speakers can take 50+ watts RMS without issues. The impedance stays around 4 ohms for the factory system. Higher sensitivity speakers will sound louder at the same power level - look for 90+ dB ratings if possible.

Should I replace all speakers at once or upgrade the Mazda CX-9 audio system gradually?

Start with front door panels, then add rear doors, finally tackle the dashboard speakers. This gives you the most noticeable improvement first. The dashboard speakers are trickier to access anyway. Some people skip the rear entirely if they don't carry passengers often. Component speakers in front with coaxials in back creates a good balance. The factory wiring should handle aftermarket speakers fine - just match the impedance. You might notice the dashboard speakers sound weaker after upgrading the doors, but that's normal.