Infiniti M37 Rear Door Panel Speaker Size
The Infiniti M37 rear door panel accommodates a 6.5 inch speaker size across all listed model years. Compatible types for the location include midbass and full-range speakers. The specifications cover a range of years from 2011 to 2013.
| Year | Type | Size (inch) |
|---|---|---|
| 2013 | Midbass / Full-Range | 6.5 |
| 2012 | Midbass / Full-Range | 6.5 |
| 2011 | 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 in the Infiniti M37 accommodates speakers mounted within the door cavity, where the speaker frame is flush-mounted against the interior door panel surface.
- Door panel installations position speakers at a low-to-mid height along the vehicle's side walls, which affects the horizontal soundstage and the directional projection of audio energy toward the cabin occupants.
- The 6.5-inch diameter suits the rear door panel mounting cutout across the 2011, 2012, and 2013 model years of the Infiniti M37, making cone area and basket diameter critical factors for fitment compatibility.
- A 6.5-inch speaker cone area supports extended low-frequency reproduction relative to smaller diameter drivers, making the rear door panel a mechanically suitable location for reinforcing bass and lower midrange content.
- The physical depth of the door cavity in rear door panel installations governs the maximum mounting depth a speaker can occupy before contact with internal door hardware or window mechanisms occurs.
- Midbass drivers are designed to handle the frequency band roughly between 80 Hz and 500 Hz, reinforcing kick, punch, and the lower registers of vocals and instruments from the rear door location.
- Full-range drivers span a broader frequency band, typically from around 60 Hz up to 20 kHz, handling low, mid, and high frequencies from a single cone and tweeter assembly at the rear door position.
- In a rear door panel location, midbass drivers often function as part of a multi-component system, working in conjunction with separate tweeters and subwoofers to cover the full audible spectrum.
- The rear door panel position places the speaker at a distance from front-seat occupants, which influences time alignment and the perceived localization of low and lower-midrange frequencies reproduced by a midbass driver.
- Full-range drivers installed in the rear door panel disperse high-frequency content from a relatively low mounting height, which can affect the vertical imaging characteristics within the cabin.