The Mitsubishi Montero behind seat location accommodates a 6x9 inch speaker size across all listed model years. Full-range units are the compatible audio system replacement type for the position. These specifications cover the years 2000 through 2006.
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 behind-seat location in the Mitsubishi Montero is a rear-cabin mounting position, typically integrated into the rear interior panel or enclosure behind the last row of seats, directing sound forward into the passenger cabin.
A behind-seat position places speakers at a low and rearward point relative to seated occupants, which influences how sound travels through the cabin and reaches the listening area.
The 6x9 inch oval format is among the largest standard speaker sizes used in automotive installations, with the elongated shape allowing for a larger cone surface area than a circular equivalent of similar width.
Greater cone surface area in a 6x9 inch driver produces higher air displacement, which contributes to stronger bass and lower-midrange output in an automotive rear-cabin environment.
The physical footprint of a 6x9 inch speaker requires a mounting cavity of sufficient depth and width, and the behind-seat location in the Mitsubishi Montero across the 2000-2006 model years is sized to accommodate the 6x9 inch format specifically.
Full-range speakers are single-driver units designed to reproduce low, mid, and high frequencies from one cone, without the need for separate tweeters or woofers in the same mounting location.
In a behind-seat position, full-range speakers handle the entire audible spectrum from that location, meaning mid and high-frequency content is reproduced from a rearward and low mounting point rather than from a forward or elevated position.
The combination of the 6x9 inch size and full-range type in the behind-seat location means the driver must handle bass frequencies that benefit from the larger cone while also reproducing treble frequencies that are more directional and sensitive to placement angle.
Full-range drivers in the 6x9 inch format typically cover a frequency range extending from roughly 40-60 Hz on the low end to around 20 kHz at the high end, depending on cone material and tweeter element design.
The behind-seat mounting position in an SUV such as the Mitsubishi Montero is often partially enclosed by the surrounding trim or cargo area structure, which can act as an informal baffle and influence low-frequency reinforcement.