1979 Porsche 911 Speaker Sizes
The 1979 Porsche 911 factory audio system includes specific mounting locations. The front door panel accommodates a 5.25 inch speaker size, while the rear door panel accepts 4x6 inch units. Compatible speaker types for a replacement upgrade consist of full-range and midbass drivers.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 5.25 | Midbass / Full-Range |
|
| Rear Door Panel | 4x6 | Full-Range |
|
1979 Porsche 911 Speaker Replacement Summary
2
total positions
2
easy to replace
1
high priority
0
professional only
Replacement difficulty:
Low: 2 Medium: 0 High: 0Replacement priority:
High: 1 Medium: 1 Low: 01979 Porsche 911 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 front door panels in the 1979 Porsche 911 accommodate 5.25-inch speakers that may accept either midbass drivers or full-range units, suggesting flexibility in component selection based on whether a separate tweeter arrangement is planned or if a single speaker solution is preferred.
- Rear door panel locations are specified for 4x6-inch full-range speakers, which typically operate across a broad frequency spectrum from midrange through treble without requiring additional drivers.
- The single DIN radio opening indicates a standard head unit mounting depth, which may influence aftermarket receiver choices particularly regarding features like amplifier outputs or equalization capabilities that could affect speaker performance.
- Front speakers at 5.25 inches generally provide better low-frequency response compared to the smaller 4x6-inch rear units, potentially creating a front-biased soundstage when both positions are populated.
- The midbass compatibility notation for front speakers suggests these positions could support systems where higher frequencies are handled by separate tweeters, allowing the main driver to focus on lower midrange reproduction.
- Full-range compatibility across both speaker locations in the 1979 Porsche 911 offers the option for a straightforward installation approach without necessarily requiring component separation or external crossover networks.
- The size difference between front and rear speakers may reflect acoustic considerations related to door cavity volume and available mounting depth at each location within the vehicle's interior architecture.