Mercedes-Benz CLS400 Speaker Size

Speaker size, type, and location chart for Mercedes-Benz CLS400 models from 2015 to 2017 production years.

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Front Door Panel Speaker

YearsTypeSize (inch)
2015 - 2017Midbass / Full-Range6.5

Rear Door Panel Speaker

YearsTypeSize (inch)
2015 - 2017Midbass / Full-Range6.5

Mercedes-Benz CLS400 Speaker FAQ

What speakers should I replace first in a Mercedes-Benz CLS400?

Replace the front door panel speakers first. These 6.5-inch drivers handle most vocal frequencies and midrange content you'll actually notice. The front speakers typically receive 40-60 watts in the CLS400's factory setup, so upgrading here gives immediate impact. Rear door speakers can wait since they mostly fill ambient sound. Start with component speakers if your budget allows - the separation between tweeter and woofer generally improves staging compared to coaxial designs.

Can I install component speakers in all Mercedes-Benz CLS400 door locations?

Yes, both front and rear door panels support component speaker installation. The 6.5-inch openings accommodate most aftermarket component sets rated between 2-8 ohms. However, you might need custom tweeter mounting since Mercedes tends to integrate tweeters into the door trim. Check if your CLS400 has separate tweeter locations before ordering components. Some installers recommend keeping rear speakers as coaxials anyway - simpler wiring and the staging difference isn't as critical in rear positions.

What's the difference between coaxial and component speakers for the CLS400?

Component speakers separate the tweeter from the woofer, typically improving soundstage width and imaging precision. The 6.5-inch woofer handles frequencies from roughly 80Hz to 3kHz, while the separate tweeter covers 3kHz to 20kHz. Coaxials mount everything together - easier installation but the tweeter position isn't always optimal. In the Mercedes-Benz CLS400, components work better up front where you want precise imaging. Coaxials might be sufficient for rear fill duties. Power handling varies but expect 50-100 watts RMS for quality aftermarket options in either configuration.

Will full-range speakers work well in the Mercedes-Benz CLS400 rear doors?

Full-range speakers can work adequately for rear door applications. These single-driver designs attempt to cover the entire frequency spectrum from around 60Hz to 18kHz without separate tweeters or crossovers. The trade-off is usually compromised frequency response - you get decent midrange but potentially weak treble extension or bass response compared to dedicated component systems. For rear fill in the CLS400, full-range might be acceptable if you're primarily focused on front stage quality. Most aftermarket full-range 6.5-inch options handle 25-75 watts RMS.