1994 Infiniti Q45 Speaker Sizes
The 1994 Infiniti Q45 factory audio system features specific locations for sound reproduction. Front door panel locations accommodate 4 inch speakers, while rear deck lid locations accept 6x9 inch units. Component replacements and audio upgrades support midrange and full-range compatible speaker types.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 4 | Midrange |
|
| Rear Deck Lid | 6x9 | Full-Range |
|
1994 Infiniti Q45 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: 01994 Infiniti Q45 Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN or Double DIN | 7"×2" or 7"×4" | 180×50 or 180×100 | Vehicle supports both radio sizes |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 1994 Infiniti Q45 incorporates a split-frequency speaker configuration where front door panels house dedicated 4-inch midrange drivers while rear deck positions accommodate larger 6x9 inch full-range speakers. This design suggests that front speakers primarily handle middle frequencies while rear speakers reproduce the entire audible spectrum.
- Replacement of the front door panel speakers in this Infiniti model would typically focus on midrange drivers, which handle critical vocal frequencies and much of the instrument detail in music. The 4-inch size indicates these speakers occupy a relatively compact mounting area, which may limit power handling capacity compared to larger components.
- The rear deck lid speakers on the 1994 Infiniti Q45 function as full-range units covering bass, midrange, and treble frequencies simultaneously. The 6x9 inch oval format provides more cone surface area than circular equivalents of similar mounting depth, potentially offering improved low-frequency response and higher output capability.
- Sound improvement from speaker replacement would likely depend on condition of the factory components and quality of aftermarket alternatives chosen. Midrange speakers in door panels may benefit from materials with better damping characteristics, while rear deck speakers could see enhancements in frequency extension and power handling through component upgrades.
- The radio compatibility with both single DIN and double DIN head units provides flexibility for aftermarket stereo installation. A double DIN receiver would occupy more dashboard space but could offer larger displays and additional controls, while single DIN units allow for storage pocket or auxiliary component installation in the remaining space.
- Installation considerations for the front midrange speakers might include ensuring proper seal between speaker and door panel to prevent sound cancellation effects. The rear deck speakers may require attention to mounting surface rigidity to minimize rattling and energy loss during bass reproduction, though this would depend on construction of the deck lid panel itself.