Mercedes-Benz SLK280 Speaker Size

Speaker size, type, and location chart for Mercedes-Benz SLK280 models from 2006 to 2008 production years.

As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.

Front Door Panel Speaker

YearsTypeSize (inch)
2006 - 2008Tweeter1
2006 - 2008Midbass / Full-Range6.5

Behind Rear Seat Speaker

YearsTypeSize (inch)
2006 - 2008Tweeter1

Center Dash Speaker

YearsTypeSize (inch)
2006 - 2008Full-Range3.5

Mercedes-Benz SLK280 Speaker FAQ

Which speakers should I replace first in my Mercedes-Benz SLK280?

Replace the 6.5 inch front door speakers first. These handle most of your music's frequency range and deliver the biggest sound improvement. The front door position puts them closest to your ears, so upgrades here matter most. You'll want speakers rated around 60-80 watts RMS with 4-ohm impedance. Component speakers work better than coaxial here since you already have dedicated 1 inch tweeters in the front doors. The center dash and rear tweeters can wait.

Can I install component speakers in the Mercedes-Benz SLK280 front doors?

Yes, component speakers fit perfectly in the SLK280 front doors. You already have separate 1 inch tweeter locations, so you just need the 6.5 inch woofers for the main door panels. This gives you better sound separation than coaxial speakers. Mount the crossovers somewhere accessible but protected from moisture. The existing tweeter wiring might need adapters depending on your component set. Some installers prefer running new tweeter wires for better gauge and connection quality.

What's the purpose of the 3.5 inch center dash speaker in the SLK280?

The 3.5 inch center dash speaker handles mid-range frequencies and vocal clarity. It fills the gap between your left and right front speakers, creating better stereo imaging. This speaker typically runs around 20-40 watts and focuses on the 200Hz to 4kHz range. Replacing it can improve dialogue clarity in music and better center channel performance if you're running a aftermarket head unit with time alignment. Full-range speakers work here, but some prefer dedicated mid-range drivers for tighter frequency control.

Should I upgrade the rear tweeters behind the seats in my Mercedes-Benz SLK280?

The rear 1 inch tweeters add ambient sound but aren't critical for most listening. They extend the soundstage and can make the cabin feel more immersive. Upgrade them if you've already done the front speakers and want to complete the system. Look for tweeters that match your front component set's frequency response. These typically handle 3kHz and up, around 10-20 watts. The behind-seat location means they mainly affect rear passengers or create subtle fill for front listeners.

What impedance should I choose for SLK280 speaker replacements?

Stick with 4-ohm speakers for the Mercedes-Benz SLK280. The factory amplifier expects this impedance load. Using 8-ohm speakers will reduce power output and make your system sound quieter. 2-ohm speakers might seem tempting for more volume, but they can stress the amplifier and cause overheating. Most quality aftermarket speakers come in 4-ohm versions anyway. Check your specific amplifier specs though - some premium Mercedes systems use different configurations.