Infiniti M35h Headrest Speaker Size
The Infiniti M35h headrest location accommodates a 2 inch speaker size. Compatible types include tweeter units suited for audio installation. These specifications cover the 2012 to 2013 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2013 | Tweeter | 2 |
| 2012 | Tweeter | 2 |
Speaker Types
| Type | Description |
|---|---|
| Tweeter | A small driver built for high frequencies, typically from about 2,000 Hz to 20,000 Hz. It adds treble detail and clarity and is usually mounted near ear level or aimed at the listener. |
Additional Notes
- The headrest is an unconventional speaker mounting position, placing drivers in close proximity to the listener's ears rather than at a distance from a door panel or rear deck.
- Headrest-mounted speakers operate at extremely short throw distances, meaning sound reaches the ears with minimal delay and at low output levels relative to conventionally mounted drivers.
- A 2-inch driver in a headrest enclosure occupies a physically constrained cavity within the seat structure, requiring compact basket dimensions and shallow mounting depth to fit within upholstery and foam padding.
- The 2-inch cone diameter limits low-frequency extension, as smaller diaphragm surface area moves less air, making the driver acoustically suited to upper-frequency reproduction rather than bass or midrange content.
- Tweeters are high-frequency transducers designed to reproduce the upper portion of the audible spectrum, typically from around 2,000 Hz upward, where wavelengths are short enough that a small diaphragm can move air efficiently.
- In a headrest location, a tweeter's directional dispersion characteristic becomes particularly significant, as high-frequency sound is inherently more directional than low-frequency sound, and placement directly beside the ear aligns the driver's on-axis output with the listener's ear canal.
- The Infiniti M35h headrest speaker position accommodates only 2-inch tweeters across the 2012 and 2013 model years, indicating a consistent cavity dimension in the seat design for both years.
- Tweeters in headrest positions are typically part of a multi-amplified or actively crossed-over audio system, as the driver's limited frequency range requires a high-pass filter to prevent low-frequency signals from overexciting the small diaphragm.
- The spatial isolation of a headrest-mounted tweeter from the vehicle's main speaker array creates a near-field listening zone that differs acoustically from the far-field environment created by door or kick panel placements.