Infiniti M56 Speaker Size

Front Door Panel Speaker

Rear Deck Center Speaker

Center Dash Speaker

Headrest Speaker

Rear Door Panel Speaker

Rear Deck Lid Speaker

Infiniti M56 Speaker FAQ

Which speakers should I replace first in my Infiniti M56 for the biggest sound improvement?

Start with the 6x9 inch speakers in the front door panels. These handle most of your music's frequency range and typically see 50-75 watts RMS. The factory speakers here often use cheaper paper cones that distort around 80-90 dB. Aftermarket options with polypropylene or treated paper cones can handle 100+ watts and stay clean up to 95+ dB. Your Infiniti M56's front stage carries about 70% of the audio workload, so this upgrade delivers the most noticeable difference.

Can I replace the 3 inch midrange speakers without touching the tweeters in my Infiniti M56?

Yes, but you might create frequency gaps around 3-4 kHz. The factory 3 inch midrange drivers typically handle 200 Hz to 4 kHz at 4-8 ohms. If you install aftermarket midrange speakers with different crossover points... well, some roll off at 3.5 kHz while others push to 5 kHz. The 1 inch tweeters pick up around 3-4 kHz in most Infiniti M56 setups. You could end up with either overlap causing harshness or a gap creating hollow vocals. Component systems solve this by matching the crossover network to both drivers.

What's the difference between coaxial and component speakers for my Infiniti M56's front doors?

Component speakers separate the tweeter from the woofer, letting you position each driver optimally in your Infiniti M56. The 6x9 inch woofer stays in the door panel while the tweeter mounts higher, maybe in the sail panel or dashboard corner. This creates better stereo imaging since high frequencies become more directional above 2 kHz. Coaxial speakers mount everything together - convenient but the tweeter ends up firing at your knees instead of your ears. The factory component setup suggests Infiniti designed the M56 for proper staging. Power handling differs too... components often handle 75-100 watts RMS per speaker versus 40-60 watts for equivalent coaxials.

Should I upgrade the 10 inch subwoofer in my Infiniti M56's rear deck center?

Depends on your listening habits and current performance. That 10 inch sub probably receives 150-200 watts RMS and handles frequencies below 80-100 Hz. If you're hearing distortion during bass-heavy music or the sub sounds loose around 40-50 Hz, an upgrade makes sense. Aftermarket 10 inch subs can handle 300+ watts and dig down to 25-30 Hz with proper enclosure tuning. But if you mainly listen to jazz or classical... the factory sub might already exceed your needs. The Infiniti M56's rear deck location limits air space anyway, so even premium subs won't perform like a dedicated trunk enclosure.