Mercedes-Benz 560SEC Speaker Size

Dashboard Speaker

Rear Deck Lid Speaker

Mercedes-Benz 560SEC Speaker FAQ

What speakers should I upgrade first in my Mercedes-Benz 560SEC?

Replace the dashboard 4-inch coaxials first. These handle most of your mid-range frequencies and vocals - probably the most noticeable improvement for the effort. The rear deck 4x6 speakers can wait since they're mainly filling in background sound. Dashboard placement gives you better stereo imaging too, so that's where your money works hardest.

Can I fit 5.25-inch speakers in the Mercedes-Benz 560SEC dashboard location?

Unlikely without major modifications. The 4-inch opening is pretty tight in these cars. You'd need to cut the dash mounting holes larger, which... well, that's not something you want to do to a 560SEC. Stick with quality 4-inch coaxials - brands like Alpine or Pioneer make some surprisingly good ones around 50-60 watts RMS that'll work well with most aftermarket head units.

What's the difference between coaxial and component speakers for the 560SEC?

Coaxials have the tweeter mounted directly on the woofer - simpler installation, one speaker does everything. Components separate the tweeter and woofer, usually sound better but need more mounting points. Given the 560SEC's limited dashboard space, coaxials make more sense unless you're planning a full custom install. The rear deck could handle components if you're really pushing for audiophile quality.

Why does my Mercedes-Benz 560SEC have 4x6 speakers in the rear?

That oval shape fits the rear deck contours better than round speakers. More surface area than a 4-inch round, less than a 6-inch round - kind of a compromise size. The 4x6 format was pretty common in luxury cars from that era. They're typically rated around 20-40 watts RMS, handle frequencies from maybe 80Hz to 20kHz depending on the specific model you choose.

What impedance should I look for in 560SEC replacement speakers?

4-ohm speakers work best with most aftermarket head units. The original Mercedes system was probably 4-ohm anyway. Some high-end speakers come in 8-ohm varieties, but your amplifier might not push them as hard. If you're keeping the factory head unit... well, that's trickier. Those old units sometimes prefer higher impedance loads, but 4-ohm speakers shouldn't cause problems.

Do I need an amplifier for Mercedes-Benz 560SEC speaker upgrades?

Depends on your head unit's power output. Most aftermarket units push 15-25 watts RMS per channel, which should drive decent 4-inch and 4x6 speakers adequately in the cabin. But if you want real improvement, especially from those rear deck speakers, a small 4-channel amp makes sense. Something around 50 watts RMS per channel would wake up the whole system without going overboard.