Mazda Protege Rear Deck Lid Speaker Size

Additional Notes

• The rear deck lid is a horizontal surface positioned along the rear shelf of the cabin, behind the passenger seating area and above the trunk, placing speakers in a rear-facing, elevated orientation relative to front occupants.
• Mounting on a deck lid surface typically involves a flush or near-flush installation into a flat panel, with speaker depth clearance being a spatial constraint determined by the gap between the deck surface and the trunk cavity below.
• The 6x9 inch oval format appears across the 1995 through 2003 model years at the rear deck lid location. The elongated oval geometry of a 6x9 driver increases cone surface area compared to round equivalents, which contributes to greater low-frequency displacement and output from a rear deck mounting position.
• Full-range is the only compatible type listed for the 6x9 inch position on the Mazda Protege rear deck lid. A full-range driver is designed to reproduce the audible spectrum from low bass through high treble within a single cone unit, without requiring a crossover network or supplementary drivers.
• The rear deck position places 6x9 full-range speakers at a distance from front occupants, meaning high-frequency dispersion characteristics of the driver affect how treble energy reaches the listening position, since high frequencies are more directional than low frequencies.
• The 5.25 inch round format is associated with the 1990 through 1994 model years at the rear deck lid location. A 5.25 inch driver has a smaller cone surface area than a 6x9 inch driver, which generally correlates with a higher low-frequency rolloff point and reduced bass displacement.
• The Mazda Protege rear deck lid accommodates a 5.25 inch speaker for the 1990 through 1994 model years, and the physical cutout diameter and mounting hole pattern at the deck lid position reflect this smaller speaker format compared to later years.
• Midbass is listed as a compatible type alongside full-range for the 5.25 inch position. A midbass driver is purpose-built to handle the mid-to-low frequency range, roughly 80 Hz to 500 Hz, without attempting to reproduce upper midrange or treble frequencies, and is typically used in systems where a separate tweeter handles high frequencies.
• When a midbass driver is installed at the rear deck lid position, upper frequency reproduction at the rear of the cabin is absent unless supplemented by a separate tweeter mounted elsewhere, since a midbass driver rolls off before reaching the upper midrange and treble bands.
• The rear deck lid location positions speakers so that sound radiates upward toward the rear window, with reflections off the glass potentially affecting the frequency response and spatial characteristics perceived by occupants seated toward the front of the cabin.