Geo Storm Speaker Size
Speaker size, type, and location chart for Geo Storm models from 1990 to 1993 production years.
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Front Door Panel Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 1990 - 1993 | Midbass / Full-Range | 5.25 |
Rear Door Panel Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 1990 - 1993 | Midrange | 4 |
Geo Storm Speaker FAQ
What speakers should I replace first in my Geo Storm?
Replace the 5.25 inch front door speakers first. These handle most of your music's midrange frequencies and vocals. The front location gives you better stereo imaging since you're sitting closer to them. Your Geo Storm's rear 4 inch speakers can wait - they're mainly for fill and ambiance. Focus your budget on quality 5.25s up front, maybe 50-75 watts RMS with good sensitivity around 88-90 dB.
Can I install component speakers in my Geo Storm front doors?
Yes, the front door panels accept both coaxial and component speakers. Component systems separate the tweeter from the woofer, giving you better sound staging. You'll need to mount the tweeter somewhere in the dash or A-pillar area. The crossover can go behind the door panel or under the seat. 4-ohm impedance works best with most factory head units. Just remember you're working with limited space in the Geo Storm cabin.
Why are my Geo Storm rear speakers only 4 inch?
Space constraints in the rear door panels. The 4 inch size limits bass response - you'll typically see rolloff below 80-100 Hz depending on the speaker. These are really meant for mid-bass and upper frequencies to fill in the sound behind you. If you want more rear presence, look for 4 inch speakers with good excursion capabilities, maybe 30-40 watts RMS. Don't expect them to match your front 5.25s though.
What's the difference between coaxial and full-range speakers for my Geo Storm?
Coaxial speakers have a separate tweeter mounted on top of the woofer cone. Full-range speakers try to reproduce all frequencies with just the main cone. Coaxials typically sound clearer in the highs - you get actual treble response instead of just upper midrange. For your Geo Storm's rear 4 inch position, either works since they're mainly fill speakers. The front 5.25 inch location benefits more from coaxial design because that's where you need clear vocals and detail.
How many watts can the Geo Storm factory electrical system handle?
The factory alternator puts out around 75-90 amps depending on options. For speakers alone, you're probably fine up to 200-300 watts total system power. That's enough for 75 watts RMS to each front speaker and maybe 40 watts to each rear. Going higher means you might need capacitors or electrical upgrades. The factory wiring should handle most aftermarket head units without issues, but check your fuse ratings if you're adding amplifiers.