Mazda MX-5 Miata Speaker Size

Front Door Panel Speaker

Rear Deck Lid Speaker

Mazda MX-5 Miata Speaker FAQ

Which speakers should I replace first in my Mazda MX-5 Miata for the biggest sound improvement?

Replace the front door panel 6 x 8 inch speakers first. These handle most of your music's frequency range and you'll notice the biggest difference immediately. The front location means better stereo imaging too. Those 1 inch tweeters can wait - they're mostly for high-end sparkle that becomes more noticeable after you upgrade the main drivers.

What's the difference between coaxial and component speakers for the front doors?

Coaxial speakers put the tweeter and woofer in one unit - easier installation, decent sound. Component systems separate them, which usually sounds better because you can position the tweeter optimally. But component might require more wiring work in your Mazda MX-5 Miata. If you're keeping the factory head unit, coaxial speakers around 60-80 watts RMS should work well with the built-in amplifier.

Can I use the rear deck lid 6 x 9 inch speakers for better bass?

The 6 x 9 inch speakers on the rear deck can help with mid-bass, but they're not true subwoofers. Look for models that handle down to maybe 45-50 Hz effectively. Problem is the rear deck location in the Mazda MX-5 Miata - it's not ideal for bass coupling. You might get some fill, but don't expect deep bass impact. A proper subwoofer installation would be more effective for real low-end.

What impedance should I look for when replacing these speakers?

Stick with 4-ohm speakers for your Mazda MX-5 Miata. Most factory systems are designed around this impedance. Using 8-ohm speakers might reduce power output from your head unit. 2-ohm speakers could potentially stress the amplifier if it's not designed for that load. The factory system probably puts out around 15-25 watts RMS per channel, so matching impedance ensures you get the available power.

Do I need to replace both the tweeters and main speakers, or can I mix them?

You can replace just the 6 x 8 inch speakers and keep the factory 1 inch tweeters initially. The frequency crossover point might not be perfect, but it often works reasonably well. If you notice harshness or gaps in the sound after the main speaker upgrade, then consider tweeter replacement. Some people actually prefer keeping factory tweeters because they're already positioned and tuned for the Mazda MX-5 Miata's interior acoustics.