Mercedes-Benz SL320 Speaker Size

Front Door Panel Speaker

Rear Door Panel Speaker

Mercedes-Benz SL320 Speaker FAQ

Which speakers should I replace first in my Mercedes-Benz SL320?

Replace the front door panel speakers first. These 6.5-inch drivers handle most of your critical listening frequencies and vocals. Front speakers typically see more power from your head unit - usually around 15-25 watts RMS. The rear door panel speakers can wait since they mainly provide fill and ambiance. Focus your budget on quality front components or coaxials before touching the rears.

Can I install component speakers in all Mercedes-Benz SL320 door locations?

Yes, both front and rear door panels accept component systems. The 6.5-inch size gives you decent woofer surface area for midrange punch. You'll need to mount tweeters separately - most installers use the existing tweeter locations or add custom mounts. Component systems typically offer better imaging than coaxials because you can position the tweeter optimally. Expect to run separate wiring for the crossovers.

What's the difference between coaxial and full-range speakers for the SL320 rear doors?

Full-range speakers attempt to reproduce all frequencies from one driver - think 80Hz to 20kHz from a single cone. Coaxials mount a separate tweeter on the woofer for better high-frequency response. The rear door panels in your SL320 can handle either type, but coaxials generally sound clearer above 3kHz. Full-range might work if you're on a tight budget, though the high-end response usually falls off around 12kHz.

Do I need different power handling for front versus rear speakers in the Mercedes-Benz SL320?

Not necessarily, but the front speakers might see slightly more power depending on your fade settings. Most factory head units push 15-20 watts RMS per channel. Look for speakers rated around 25-50 watts RMS to handle aftermarket amplification later. The 6.5-inch size in both locations means similar power requirements - maybe 4-8 ohm impedance. Just ensure your front speakers can handle whatever you're throwing at them since they do the heavy lifting.

Will larger drivers fit in the SL320 door panels instead of 6.5-inch?

Probably not without major modifications. The 6.5-inch mounting depth and diameter are usually maxed out in these door panels. You might squeeze in a 6.75-inch speaker if the mounting holes align, but anything larger requires cutting. The SL320's door construction limits your options. Better to invest in higher-quality 6.5-inch drivers than try forcing larger ones. Consider the magnet depth too - some aftermarket speakers have deeper motor structures.