Infiniti G35 Rear Deck Lid Speaker Size
The Infiniti G35 rear deck lid accommodates 6x9 inch speakers, supports an 8 inch speaker size, and accepts 4 inch units across various model years. Compatible audio types for these locations include full-range, woofer, and midrange system configurations. These specifications cover the 2003 to 2008 range of model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2008 | Full-Range | 6x9 |
| 2007 | Full-Range | 6x9 |
| 2007 | Woofer | 8 |
| 2006 | Woofer | 8 |
| 2006 | Full-Range | 6x9 |
| 2005 | Woofer | 8 |
| 2005 | Midrange | 4 |
| 2005 | Full-Range | 6x9 |
| 2004 | Woofer | 8 |
| 2003 | Woofer | 8 |
| 2003 | Full-Range | 6x9 |
Speaker Types
| Type | Description |
|---|---|
| Midrange | A driver for the middle of the audible range, typically from about 300 Hz to 5,000 Hz, where vocals and most instruments sit. It is often paired with a tweeter and a woofer. |
| Woofer | A larger driver for low frequencies, typically from about 40 Hz up to 1,000 Hz. It delivers most of the bass and lower midrange in a door or panel speaker system. |
| 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 deck lid of the Infiniti G35 is a surface-mounted location positioned at the base of the rear window, above the trunk cavity, placing speakers in a rear-firing or upward-angled orientation relative to the passenger cabin.
- A deck lid location reflects sound off the rear windshield glass, which affects the spatial imaging of audio reproduction and the way sound waves reach front-seated occupants indirectly.
- The 6x9 inch oval format accommodates a larger cone surface area than a standard round speaker of comparable diameter, which supports greater low-frequency displacement and output within a relatively shallow mounting depth typical of deck lids.
- Full-range speakers reproduce the entire audible frequency spectrum - from bass through treble - within a single driver, making them suited to a deck lid position where a single opening must cover broad frequency reproduction without a separate crossover network.
- The 8 inch round format, as found in the Infiniti G35 rear deck lid across the 2003-2007 model years, supports deeper low-frequency response than smaller round drivers, with the rear deck cavity beneath the lid acting as a partial enclosure that can reinforce bass output.
- A woofer is a driver dedicated to low and upper-bass frequencies, generally operating below 500 Hz, and the 8 inch woofer designation at the rear deck lid position places bass reproduction at the rear of the cabin, where low-frequency wavelengths are less directional.
- The 4 inch round driver, listed for the 2005 model year, has a smaller cone area that limits low-frequency excursion, making the midrange type designation acoustically appropriate for a driver of that size in a supplementary deck lid role.
- Midrange speakers cover the frequency band most associated with vocal and instrumental clarity, typically between approximately 300 Hz and 5,000 Hz, and a 4 inch midrange at the deck lid would contribute upper-mid detail to the rear acoustic stage.
- The presence of multiple speaker sizes listed for the same model year - such as 2005, which lists 4 inch, 6x9 inch, and 8 inch - indicates that the rear deck lid on the G35 contained multiple distinct mounting locations or cutouts accommodating different driver sizes simultaneously.
- The 6x9 inch oval shape requires an oval cutout in the deck lid panel, which differs structurally from the circular cutout required by the 8 inch or 4 inch round drivers, confirming separate physical mounting positions when both are listed for the same year.