Infiniti Q70L Speaker Size

Front Door Panel Speaker

Rear Door Panel Speaker

Infiniti Q70L Speaker FAQ

Should I replace front or rear speakers first in my Infiniti Q70L?

Replace the front door speakers first. Your ears naturally focus on sound coming from ahead, so front speaker upgrades deliver more noticeable improvement. The Infiniti Q70L front doors handle most vocal frequencies and stereo imaging. Rear speakers mainly fill ambient sound. Start with 6.5 inch components in the front doors for 2016-2017 models, or 6 x 9 components for 2015. You'll hear the difference immediately in voice clarity and instrument separation.

What's the difference between coaxial and component speakers for the Q70L?

Component speakers separate the tweeter from the woofer. Better sound staging, cleaner highs. Coaxial combines everything into one unit - easier installation but compromised performance. The Infiniti Q70L door panels can accommodate both types. Components typically need separate tweeter mounting, which might require minor modifications. Coaxials drop right in. If you're keeping the factory amplifier, components around 25-75 watts RMS work well. The crossover networks in components handle frequency division more precisely than coaxial designs.

Why did Infiniti change speaker sizes between 2015 and 2016 Q70L models?

Interior redesign. The 2015 Q70L used 6 x 9 speakers front and rear, then switched to 6.5 inch rounds for 2016-2017. Door panel geometry changed slightly. The 6 x 9 format offers more cone area - potentially deeper bass response. But 6.5 inch speakers often have better midrange focus and easier replacement options. Both sizes use similar mounting depths in the Infiniti Q70L doors. Check your specific year before ordering. The power handling remains comparable between sizes, usually 20-60 watts RMS from the factory system.

Can I use full-range speakers instead of components in my Q70L rear doors?

Yes, full-range speakers work fine for rear positions. They handle all frequencies in one driver - simpler than components. The Infiniti Q70L rear doors support full-range, coaxial, or component types. Full-range speakers typically cost less and install easier. However, they might not match the tonal quality if you upgrade to components up front. Consider matching speaker types front and rear for consistent sound signature. Impedance should stay at 4 ohms for most factory systems. Full-range drivers around 30-50 watts RMS complement the Q70L's audio setup.

What impedance should I use for Q70L speaker replacements?

Stick with 4 ohm speakers. The Infiniti Q70L factory amplifier expects this load. Using 8 ohm speakers reduces power output significantly. 2 ohm speakers might stress the amplifier. Most aftermarket car speakers come in 4 ohm versions anyway. The factory system probably delivers 25-45 watts per channel to each door speaker location. Match this with speakers rated for similar power handling. Higher sensitivity ratings around 88-92 dB help maximize volume from the factory amplifier without distortion.