Mercedes-Benz S420 Speaker Size
Speaker size, type, and location chart for Mercedes-Benz S420 models from 1994 to 1999 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
| Years | Type | Size (inch) |
|---|---|---|
| 1998 - 1999 | Midbass / Full-Range | 6.5 |
Rear Door Panel Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 1998 - 1999 | Midbass / Full-Range | 5.25 |
Dashboard Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 1994 - 1997 | Full-Range | 5.25 |
Rear Deck Lid Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 1994 - 1997 | Midbass / Full-Range | 6.5 |
Mercedes-Benz S420 Speaker FAQ
Which speakers should I replace first in my Mercedes-Benz S420?
Replace the front door panel 6.5 inch speakers first. These handle most of your vocals and midrange frequencies - around 200Hz to 4kHz typically. The front speakers get the most use and degradation. Rear speakers can wait unless you notice significant distortion or rattling. Dashboard 5.25 inch units might need attention if tweeters are blown, but door speakers take priority for overall sound improvement in the S420.
Can I use component speakers instead of coaxial in my Mercedes-Benz S420?
Yes, component speakers usually offer better sound separation. The woofer handles bass and midrange while separate tweeters focus on highs above 3kHz. Your S420's factory locations support both types. Component systems need more wiring though - separate connections for tweeters. Coaxial speakers are simpler, everything built into one unit. Component speakers might require crossover mounting somewhere accessible. Consider your installation skills before deciding.
What power handling should I look for in S420 replacement speakers?
Look for speakers rated around 50-75 watts RMS for the 6.5 inch positions. The 5.25 inch speakers typically need 30-50 watts RMS. Peak power ratings aren't as important - focus on RMS numbers. Mercedes-Benz S420 factory amplifiers usually output moderate power levels. Higher wattage speakers won't hurt but you might not use their full potential without aftermarket amplification. Check impedance too - 4 ohm speakers are common but verify your system's requirements.
Do all Mercedes-Benz S420 years use the same speaker sizes?
No, speaker locations changed between generations. Earlier S420 models used 6.5 inch speakers in the rear deck lid and 5.25 inch in dashboard positions. Later versions moved to door-mounted speakers - 6.5 inch front doors, 5.25 inch rear doors. This affects both installation approach and sound staging. Door speakers usually provide better stereo imaging than deck-mounted units. Always verify your specific configuration before ordering replacements.
Why do some Mercedes-Benz S420 speakers sound muffled?
Foam surrounds deteriorate over time, especially on older speakers. This causes reduced cone movement and frequency response drops around 100-300Hz. Dashboard speakers in the S420 might also accumulate dust affecting tweeter performance above 10kHz. Paper cones can absorb moisture and lose stiffness. Component speakers with separate tweeters tend to age better than coaxial designs. Replace speakers showing visible surround damage or significant volume loss compared to others.