Scion xD Speaker Size

Front Door Panel Speaker

Rear Door Panel Speaker

Scion xD Speaker FAQ

Which speakers should I replace first in my Scion xD for the biggest sound improvement?

Replace the front 6.5-inch speakers first. These handle most of your music's midrange and bass content - vocals, instruments, the stuff you actually notice. The front door panel speakers do about 70% of the work in your Scion xD's soundstage. Rear speakers mostly fill in ambient sound. The 1-inch tweeters can wait unless they're completely blown. Front speakers around 50-75 watts RMS will probably max out what your factory head unit can push anyway.

Can I install component speakers in my Scion xD front doors?

Yes, the front door panels accept both coaxial and component 6.5-inch speakers. Component systems separate the tweeter from the woofer - you'd mount the 6.5-inch woofer in the existing door location and the separate tweeter could go in the factory 1-inch tweeter spot or somewhere else on the door panel. This gives you better imaging since the tweeter isn't fighting with the woofer in the same basket. Though you'll need to run separate wires to each component. Coaxials are simpler - everything's built into one unit.

What's the difference between coaxial and full-range speakers for my Scion xD rear doors?

Full-range speakers try to reproduce everything from bass to treble in one driver - usually around 60Hz to 20kHz. Coaxial speakers have a separate tweeter mounted on top of the woofer, so the tweeter handles highs (3kHz and up) while the woofer does mids and bass. The Scion xD rear doors can fit either type in 6.5-inch size. Coaxials typically sound clearer in the high frequencies because that dedicated tweeter isn't competing with cone movement from bass notes. Full-range might sound more coherent but less detailed up top.

Do I need an amplifier for aftermarket speakers in my Scion xD?

Depends on what you're replacing and what you expect. The factory head unit in the Scion xD probably pushes around 15-20 watts RMS per channel. If you install efficient speakers (90dB+ sensitivity), you might get decent volume without an amp. But most quality 6.5-inch speakers want 30-75 watts RMS to really wake up. The bass response especially suffers with underpowered speakers. An amplifier would definitely help, but start with speakers first - you'll still notice improvement from better drivers even with factory power.

What impedance should I look for in Scion xD replacement speakers?

Stick with 4-ohm speakers. Most factory car audio systems, including the Scion xD, are designed around 4-ohm loads. Using 8-ohm speakers will cut your power in half - so if your head unit does 20 watts into 4 ohms, you'd only get 10 watts into 8 ohms. Some people think higher impedance means better quality but that's not really true in car audio. The 6.5-inch speakers in both front and rear positions should be 4-ohm for optimal power transfer from your factory system.