1991 Mercedes-Benz 560SEC Speaker Sizes
The 1991 Mercedes-Benz 560SEC factory audio system includes specific mounting locations that accept various audio components. The dashboard accommodates a 4 inch speaker size, while the rear deck lid supports 4x6 inch units. Compatible types for a sound system replacement and upgrade consist of midrange and full-range configurations.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4 | Midrange |
|
| Rear Deck Lid | 4x6 | Full-Range |
|
1991 Mercedes-Benz 560SEC Speaker Replacement Summary
2
total positions
1
easy to replace
0
high priority
0
professional only
Replacement difficulty:
Low: 1 Medium: 1 High: 0Replacement priority:
High: 0 Medium: 2 Low: 01991 Mercedes-Benz 560SEC Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN | 7"×2" | 180×50 | Standard size for basic car radios with small display or no display |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 1991 Mercedes-Benz 560SEC came equipped with factory speakers in two locations, with dashboard positions hosting 4-inch midrange drivers and the rear deck lid containing 4x6-inch full-range units. The dashboard speakers likely served to handle mid-frequency content in the front soundstage, while the rear deck speakers were tasked with reproducing a broader frequency spectrum.
- Replacing the rear deck speakers might take priority for most listeners, as full-range drivers typically contribute more noticeably to overall sound quality compared to dedicated midrange units. The 4x6-inch format provides a reasonable surface area for moving air, though aftermarket options in this size class vary considerably in their frequency response capabilities and power handling characteristics.
- The dashboard midrange speakers in the 1991 Mercedes-Benz 560SEC occupy compact 4-inch positions that may present installation challenges depending on mounting depth and grille clearances. Aftermarket midrange drivers with appropriate impedance ratings and sensitivity specifications could potentially improve vocal clarity and instrumental definition in the front stage, particularly when paired with a separate tweeter array.
- The single DIN radio opening suggests that upgrading the head unit would be relatively straightforward from a physical fitment perspective, which could provide additional power and signal processing benefits for any replacement speakers. Modern amplification and equalization features might help compensate for the limited cone area of both the 4-inch and 4x6-inch factory speaker positions.
- The 4x6-inch rear speakers likely handle bass frequencies by default in the factory configuration, though their cone area and enclosure characteristics would limit low-frequency extension. Supplementing these speakers with a dedicated subwoofer installation might prove more effective than attempting to extract deep bass from the existing rear deck locations.