1990 Oldsmobile Cutlass Supreme Speaker Sizes
The 1990 Oldsmobile Cutlass Supreme speaker size chart provides factory and aftermarket audio specifications for replacement or upgrade purposes. Information covers locations within the dashboard and rear deck lid. Details include specifications needed to identify compatible factory speakers or aftermarket options for system enhancement.
As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4 | Midrange |
|
| Rear Deck Lid | 6x9 | Full-Range |
|
1990 Oldsmobile Cutlass Supreme 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: 01990 Oldsmobile Cutlass Supreme 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 dashboard locations in the 1990 Oldsmobile Cutlass Supreme accommodate 4-inch speakers designed specifically for midrange frequency reproduction, suggesting these positions may lack the mounting depth or enclosure characteristics needed for full-range drivers with extended bass response capabilities.
- Rear deck lid positions accept 6x9-inch full-range speakers, which typically provide broader frequency coverage than the dashboard midrange units and might serve as the primary sound source for rear passengers when factory audio configurations separate front and rear staging responsibilities.
- The single DIN radio specification indicates a standard 2-inch tall head unit opening, which represents the automotive industry standard from this era and maintains compatibility with most aftermarket receivers designed for straightforward installation without dashboard modification.
- Replacing the rear deck speakers could potentially yield more noticeable acoustic improvements than dashboard speaker upgrades, given that 6x9-inch full-range drivers generally move more air and reproduce lower frequencies more effectively than smaller midrange-only components.
- The midrange-only classification for dashboard speakers suggests these positions may have originally been intended as supplementary sound sources rather than primary drivers, possibly filling in vocal frequencies while larger rear speakers handled bass and treble extension in the 1990 Oldsmobile Cutlass Supreme audio system.
- Aftermarket speaker selection for the rear deck positions would benefit from attention to mounting depth specifications, as 6x9-inch speakers vary considerably in their rear protrusion requirements and trunk clearance considerations might limit which models physically fit without interference.