Mercedes-Benz SL63 AMG Speaker Size
Speaker size, type, and location chart for Mercedes-Benz SL63 AMG models from 2009 to 2017 production years.
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Front Door Panel Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 2009 - 2017 | Midbass / Full-Range | 6.5 |
| 2011 | Midrange | 3.5 |
Rear Door Panel Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 2009 - 2015 | Midrange | 3.5 |
| 2011 | Midbass / Full-Range | 6.5 |
Mercedes-Benz SL63 AMG Speaker FAQ
What speakers should I replace first in my Mercedes-Benz SL63 AMG for the biggest sound improvement?
Start with the 6.5 inch front door panel speakers. These handle most of your midrange and vocal frequencies - around 80Hz to 4kHz typically. The front stage creates your stereo imaging. Rear speakers mainly fill ambient sound. Component systems in the SL63 AMG separate tweeters from woofers, so you get better frequency response than coaxials. Look for speakers rated 50-75 watts RMS with 4-ohm impedance to match factory power.
Can I upgrade the 3.5 inch rear door speakers in my SL63 AMG to something larger?
The 3.5 inch rear speakers are space-limited by the door panel design. Most aftermarket 3.5 inch speakers peak around 100 watts but only need 20-30 watts for rear fill. Full-range types work since they're not handling deep bass anyway. You might find some 4 inch speakers that fit with minor modifications, but the improvement would be minimal. The SL63 AMG's rear soundstage isn't the priority - focus your budget on front components instead.
What's the difference between coaxial and component speakers for the Mercedes-Benz SL63 AMG front doors?
Component systems separate the tweeter from the woofer - tweeter usually mounts in the A-pillar or door mirror triangle. This creates better stereo imaging since high frequencies come from a different location than mids. Coaxials mount everything in one basket, simpler installation but less precise soundstage. The SL63 AMG factory system appears to use components based on the midrange designation. Component tweeters typically cross over around 3.5kHz, letting the 6.5 inch driver focus on 80Hz-3.5kHz range where it performs best.
Why does my 2011 SL63 AMG have both 6.5 inch and 3.5 inch speakers in the front doors?
The 3.5 inch is likely a dedicated midrange driver in a three-way component setup. Full three-way systems split frequencies roughly: woofer handles 80-500Hz, midrange covers 500Hz-3kHz, tweeter takes 3kHz and up. This gives cleaner separation than two-way systems. The 6.5 inch might actually be more of a midbass driver in this configuration. Check if there's also a separate tweeter - probably in the A-pillar. Three-way systems cost more but deliver noticeably better clarity in complex music passages.