Pontiac LeMans Speaker Size

Dashboard Speaker

Rear Deck Lid Speaker

Pontiac LeMans Speaker FAQ

What speakers should I replace first in my Pontiac LeMans for better sound quality?

Replace the 6.5 inch rear deck speakers first. These handle most of your music's frequency range and upgrading them gives you the biggest improvement per dollar spent. The dashboard 3.5 inch speakers are more for fill and mid-range clarity - they're important but secondary. Look for 6.5 inch coaxials with around 50-75 watts RMS and 4-ohm impedance. The rear deck location actually works well for bass response in the LeMans cabin design.

Can I install component speakers in the Pontiac LeMans rear deck location?

Yes, the rear deck supports both coaxial and component configurations. Component speakers might give you better imaging though the benefits are... questionable from that rear position. You'd need to mount the tweeters somewhere forward-facing, maybe on the rear shelf edges. Most people probably get better results just using quality coaxials back there. The 6.5 inch size gives you decent woofer area for low-end response anyway.

What's the frequency response difference between dashboard and rear speakers in a Pontiac LeMans?

The 3.5 inch dashboard speakers typically handle 80Hz to 20kHz but they're really designed for midrange clarity around 200Hz to 5kHz. Rear 6.5 inch speakers can reach down to maybe 45-50Hz on the low end, handling most bass content your stereo produces. Dashboard placement helps with vocal intelligibility and stereo imaging. The size difference means the rear speakers do the heavy lifting while dash speakers fill in detail and presence.

Do I need an amplifier when upgrading Pontiac LeMans speakers?

Not necessarily, but it depends on your head unit power. Most factory radios in the LeMans push around 15-20 watts per channel. Quality aftermarket 6.5 inch speakers can sound significantly better even with that power level. An external amp becomes more important if you want serious volume or if your new speakers have sensitivity ratings below 87dB. The 3.5 inch dash speakers are usually efficient enough to work fine with head unit power.

Will larger speakers fit in the Pontiac LeMans dashboard location?

No, you're limited to 3.5 inch in the dashboard. The mounting depth and surrounding trim don't accommodate anything bigger. Some people try 4 inch speakers but they typically require cutting or modification that... well, it's not worth the hassle. Better to focus on high-quality 3.5 inch full-range speakers with good frequency response. Look for models with sensitivity around 90dB or higher since the dashboard position doesn't give you much acoustic coupling.