Cadillac 60 Special Rear Door Panel Speaker Size
The Cadillac 60 Special rear door panel accommodates a 6.5 inch speaker size. Compatible types for the location include midbass and full-range audio system units. These specifications apply to the 1993 model year.
| Year | Type | Size (inch) |
|---|---|---|
| 1993 | Midbass / Full-Range | 6.5 |
Speaker Types
| Type | Description |
|---|---|
| Midbass | A driver tuned for upper bass and lower midrange, roughly from 80 Hz to 500 Hz. It has longer cone travel than a full-range unit, which supports stronger bass in doors and panels. |
| Full-Range | 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 door panel location places speakers within the lower portion of the door structure, where the speaker fires into the cabin at or below seat level.
- Door panel mounting positions the speaker baffle against an interior trim surface, requiring a depth clearance that accounts for window regulator mechanisms and door internals behind the mounting plane.
- A 6.5 inch driver occupies a mid-sized cone diameter that balances low-frequency extension with a mounting footprint suited to door cavities of moderate depth.
- In a rear door panel location, a 6.5 inch driver receives reflected acoustic energy from the seat structures and rear cabin surfaces, which influences the perceived bass response at the listening position.
- The 6.5 inch diameter corresponds to a cone area sufficient to move enough air for meaningful midbass output without requiring the larger cutout dimensions of a 6x9 or 8 inch driver.
- The Cadillac 60 Special rear door panel accepts a 6.5 inch driver in a location where the door cavity volume behind the cone acts as a passive enclosure, affecting low-frequency loading of the driver.
- A midbass driver is designed to reproduce the frequency band roughly spanning 80 Hz to 500 Hz, covering the lower midrange and upper bass registers where kick drum, bass guitar fundamentals, and male vocal body are present.
- A full-range driver is designed to reproduce a broad frequency span from the lower bass region through the upper treble, often incorporating a small whizzer cone or similar mechanism to extend high-frequency dispersion from a single point source.
- In a rear door panel position, a full-range driver must project sound forward toward front occupants while also serving rear passengers, a geometry that places demands on the driver's off-axis frequency response.
- A midbass driver in a rear door panel location typically operates in conjunction with a separate tweeter mounted elsewhere in the door or pillar to cover the high frequencies the midbass cone does not reproduce.