Mitsubishi Diamante Speaker Size

Speaker size, type, and location chart for Mitsubishi Diamante models from 1992 to 2004 production years.

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Front Door Panel Speaker

YearsTypeSize (inch)
2000 - 2004Tweeter1
1997 - 2004Midbass / Full-Range6.5
1992 - 1999Midbass / Full-Range5.25

Rear Deck Lid Speaker

YearsTypeSize (inch)
2000 - 2004Midbass / Full-Range6.5
1992 - 2000Full-Range6x9

Dashboard Speaker

YearsTypeSize (inch)
1994 - 2004Tweeter1

Rear Roof Speaker

YearsTypeSize (inch)
1994 - 1995Midbass / Full-Range5.25

Mitsubishi Diamante Speaker FAQ

Which speakers should I replace first in my Mitsubishi Diamante for the biggest sound improvement?

Start with the front door speakers. The 6.5 inch coaxials handle most of your music's frequency range and sit closest to your ears. These typically run around 50-60 watts RMS and 4-ohm impedance. The front positioning gives you immediate stereo imaging benefits that rear speakers can't match. Dashboard tweeters come second - they're only 1 inch but handle those crisp highs above 3000 Hz. Rear deck speakers? They add fullness but won't transform your sound like fronts will.

Can I install component speakers in my Mitsubishi Diamante if it originally had coaxials?

Yes, the front doors accept both coaxial and component configurations. Components separate the tweeter from the woofer - you might mount the tweeter in the existing dashboard location or door panel. The 6.5 inch woofer drops into the same mounting points. Crossovers need somewhere to hide though. Door panels have limited space. Some people stuff them behind the door card, others run wires to under-seat locations. Component systems typically offer better frequency separation since each driver handles its optimal range without interference.

What's the difference between the 5.25 inch and 6.5 inch front speakers in the Mitsubishi Diamante?

The 5.25 inch speakers appear in earlier models while 6.5 inch units come later. Larger cone area means more air movement - roughly 30% more surface area with the 6.5 inch. Bass response improves significantly. Power handling jumps from around 40 watts to 60 watts RMS typically. However, the 5.25 inch speakers often provide tighter mid-bass punch in smaller door cavities. Door volume matters here. If your Diamante has the smaller opening, forcing a 6.5 inch speaker might actually reduce performance due to mounting depth issues.

Should I keep the 6 x 9 speakers in my Mitsubishi Diamante rear deck?

Those 6 x 9 speakers move serious air - about 40% more cone area than round 6.5 inch speakers. They handle bass frequencies down to 50-60 Hz reasonably well for factory units. Problem is positioning. Rear deck mounting fires sound toward the rear window, creating reflections. You get decent fill but poor imaging. Triaxial versions include tweeter and midrange elements, but they're competing with your front speakers for the same frequencies. Consider this: if your front stage sounds good, rear speakers mainly add ambiance and bass reinforcement.