Pontiac Sunbird Speaker Size

Speaker size, type, and location chart for Pontiac Sunbird models from 1986 to 1994 production years.

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Dashboard Speaker

YearsTypeSize (inch)
1986 - 1994Full-Range3.5

Rear Door Panel Speaker

YearsTypeSize (inch)
1988 - 1994Full-Range6x9

Rear Deck Lid Speaker

YearsTypeSize (inch)
1986 - 1987Full-Range6x9

Pontiac Sunbird Speaker FAQ

What speakers should I replace first in my Pontiac Sunbird for better sound?

Replace the rear 6 x 9 speakers first. They handle most of your bass and midrange output, typically around 20-50 watts RMS. The dashboard 3.5 inch speakers mainly cover highs above 2kHz. Rear speakers in the Pontiac Sunbird carry the heavy lifting for overall volume and punch. Dashboard units can wait unless they're completely blown.

Can I install component speakers in the rear door panels of my Pontiac Sunbird?

Yes, but only for 1988-1994 models. The rear door panel location supports component setups with separate woofers and tweeters. Earlier models have rear speakers in the deck lid which makes component installation tricky. You'll need around 4 ohm speakers rated for 25-60 watts RMS. The door panel mount gives you better stereo imaging than deck lid placement.

Why does my Pontiac Sunbird have both dashboard and rear speakers?

It's a basic 2-way setup. Dashboard 3.5 inch speakers handle frequencies above 1.5-2kHz for clarity and detail. Rear 6 x 9 speakers cover everything below that - midrange vocals, bass, and overall volume. This split helps prevent smaller dashboard speakers from distorting when pushed hard. Most factory systems run around 10-15 watts to each location.

What's the difference between coaxial and triaxial speakers for my Pontiac Sunbird?

Coaxial speakers have a woofer with tweeter mounted on top. Triaxial adds a small midrange driver, usually around 2-3 inches. For the rear deck lid position in early Pontiac Sunbird models, triaxial might give you slightly better vocal separation. The difference isn't huge though. Both types typically handle 4-8 ohm impedance and similar power ratings around 40-80 watts peak.

Can I use full-range speakers in all positions of my Pontiac Sunbird?

Full-range speakers work in every location but you're missing optimization opportunities. The dashboard position really benefits from speakers focused on higher frequencies since the 3.5 inch size limits bass anyway. Rear 6 x 9 locations can handle full-range well because of the larger cone area. You might lose some detail using full-range everywhere versus mixing speaker types based on position.

What power handling should I look for in Pontiac Sunbird replacement speakers?

Target 20-50 watts RMS for the 6 x 9 rear speakers and 10-25 watts RMS for dashboard 3.5 inch units. Most factory head units in the Pontiac Sunbird put out around 12-18 watts per channel. If you're adding an amplifier, you can go higher but keep impedance at 4 ohms for best matching. Peak power ratings don't mean much - focus on RMS continuous power.