Infiniti QX56 Speaker Size

Rear Door Panel Speaker

Front Door Panel Speaker

Dashboard Speaker

Infiniti QX56 Speaker FAQ

Which speakers should I replace first in my Infiniti QX56 for the biggest sound improvement?

Start with the front door 6 x 9 inch speakers. These handle most of your music's midrange and vocal frequencies. The front doors get the most power from your head unit - typically around 15-20 watts RMS. Component speakers work best here since they separate tweeter and woofer duties. You'll notice clearer vocals immediately. The rear doors can wait since they mainly provide fill sound.

Can I install component speakers in all Infiniti QX56 door locations?

Front doors accept components easily - the 6 x 9 inch size gives you flexibility with crossover placement. Rear doors depend on your model year. The 6.75 inch locations from 2006-2013 usually have tweeter mounting points, but the older 6.5 inch spots might not. You could mount tweeters in the rear deck area though. The 4 inch dashboard speakers from 2004-2005 models should stay coaxial since there's no room for separate tweeters.

What's the difference between coaxial and component speakers for my QX56?

Coaxial speakers combine the tweeter and woofer in one unit. Simpler installation, lower cost. Component systems separate them - woofer in the door, tweeter mounted elsewhere, connected through a crossover. Better sound staging since you can position tweeters at ear level. The QX56's front 6 x 9 inch locations work well with either type, but components give you more control over imaging. Impedance should be 4 ohms for both types to match your factory amplifier output.

Will aftermarket speakers fit the factory Infiniti QX56 mounting points?

The 6 x 9 inch front doors use standard mounting - most aftermarket speakers include the right brackets. Rear door mounting varies by year though. The 6.75 inch size from newer models isn't as common as 6.5 inch. You might need adapter rings. The 4 inch dashboard speakers from 2004-2005 models fit standard sizes easily. Check mounting depth before buying - the QX56's door panels have about 2.5 inches of clearance typically.

Should I upgrade the dashboard speakers in my older Infiniti QX56?

Those 4 inch dashboard speakers from 2004-2005 models mainly handle upper midrange frequencies around 2-8 kHz. They're not critical for bass response. If your current ones are blown or distorting, replace them with quality coaxials rated around 30-50 watts peak power. Look for speakers with good efficiency - at least 88 dB sensitivity. The dashboard location isn't ideal for sound staging anyway. Focus your budget on the door speakers first.