The Mercedes-Benz 560SL rear deck lid accommodates a 4x6 inch speaker size in each compatible position. Full-range units represent the compatible audio system replacement types for the location. These specifications cover a range of years from 1986 to 1989.
A single driver that reproduces bass through treble without a separate crossover network. It is the simplest replacement option and is common in factory audio systems.
Additional Notes
The rear deck lid of the Mercedes-Benz 560SL is a horizontal surface positioned at the rear of the cabin, typically above or integrated into the trunk structure, placing speakers in a rearward-facing or upward-radiating orientation relative to the passenger compartment.
A 4x6 inch oval speaker footprint is a compact format that fits within the constrained panel space of a rear deck lid, where structural reinforcements and panel thickness limit available mounting depth and surface area.
The 4x6 inch oval dimensions produce a larger radiating surface than a 4 inch round speaker while occupying a shallower mounting profile, making the format suited to locations where depth clearance is restricted, as is common in rear deck lid installations.
The oval geometry of a 4x6 inch driver creates slightly asymmetric dispersion patterns, with the longer axis influencing directional throw; in a rear deck lid position, the orientation of the driver relative to the passenger seating determines how sound energy is directed forward into the cabin.
The 4x6 inch size is associated with a frequency reproduction range that covers mid-bass through upper midrange, generally spanning from approximately 80 Hz to 15 kHz depending on driver construction, which is characteristic of the full-range type specified for the Mercedes-Benz 560SL rear deck lid.
Full-range speakers are designed to reproduce the entire audible spectrum from a single driver, without requiring a separate crossover network to divide frequencies between multiple speaker components.
In a rear deck lid location, full-range drivers handle all frequency reproduction independently, meaning low-frequency extension, midrange clarity, and high-frequency detail are all managed by the single 4x6 inch unit mounted in that position.
The acoustic output from a rear deck lid position radiates upward and forward into the passenger cabin, with sound reflecting off the rear window glass before reaching occupants, a characteristic that influences perceived imaging and spatial balance within the vehicle interior.
Mounting in the deck lid rather than a fixed body panel means the speaker enclosure is part of a surface that opens and closes, requiring wiring and mounting hardware to accommodate repeated mechanical movement without compromising electrical connections or driver alignment.
The deck lid panel itself acts as an acoustic baffle for the mounted driver; the mass and rigidity of the lid material affect resonance behavior and the degree to which low-frequency output is reinforced or dampened at the mounting surface.