Infiniti FX37 Speaker Size

Dashboard Speaker

Center Dash Speaker

Front Door Panel Speaker

Rear Door Panel Speaker

Cargo Area Speaker

Infiniti FX37 Speaker FAQ

Which speakers should I replace first in my Infiniti FX37?

Start with the front door panel 6.5 inch speakers. These handle most vocal and midrange frequencies that you actually notice while driving. The front doors typically get 15-25 watts RMS in the FX37, so upgrading here gives immediate improvement to dialog clarity and instrument separation. Dashboard 3.5 inch speakers come second - they're usually running around 8-12 watts and affect the stereo imaging. Don't worry about cargo area speakers initially unless you're hauling passengers back there regularly.

Can I install component speakers in all Infiniti FX37 locations?

Front and rear door panels accept component systems, but you'll need to verify tweeter mounting options. The 6.5 inch locations should handle most component sets rated around 20-50 watts RMS at 4 ohms. Dashboard and center dash spots are trickier - the 3.5 inch openings typically work better with coaxial designs since there's limited space for separate tweeters. Cargo area might accept components if you're willing to modify the mounting slightly.

What's the difference between coaxial and component options for the FX37?

Component systems separate the tweeter from the woofer, giving better frequency response across 20Hz-20kHz range. You get more precise soundstaging in the Infiniti FX37 cabin. Coaxial speakers combine everything into one unit - easier installation but the tweeter placement isn't always optimal. For door panels, components usually sound cleaner because you can angle tweeters toward your ears. Dashboard locations work fine with quality coaxials since they're already positioned well for high frequencies.

Do I need an amplifier for aftermarket speakers in my Infiniti FX37?

Factory head unit probably pushes around 12-18 watts RMS per channel. Most aftermarket 6.5 inch speakers want 25-75 watts RMS for proper performance, so an amplifier helps. Start with speakers first though - even underpowered aftermarket drivers often sound better than factory units. The 3.5 inch dashboard speakers are less demanding and might work okay with factory power. If you notice distortion at moderate volumes after speaker installation, then add amplification.

Should I replace the center dash speaker in my Infiniti FX37?

The 3.5 inch center dash speaker handles some vocal frequencies and helps fill the soundstage gap between left and right channels. Upgrading it can improve dialog clarity, especially if you listen to podcasts or audiobooks. Most 3.5 inch aftermarket speakers are full-range designs rated around 10-20 watts RMS. Look for units with good midrange response in the 200Hz-5kHz range since that's where this location contributes most to the FX37's overall sound.