Audi RS4 Speaker Size

Front Door Panel Speaker

Rear Door Panel Speaker

Audi RS4 Speaker FAQ

What speakers should I replace first in my Audi RS4?

Replace the front door panel speakers first. The 6.5 inch front speakers handle most of your music's critical frequencies - vocals, guitars, and midrange detail. Since you're sitting closer to them, any improvement hits immediately. The rear door panel speakers can wait unless you're frequently carrying passengers who complain about sound quality.

Can I mix coaxial and component speakers in my Audi RS4?

You could run components up front and coaxials in the rear doors. Components typically deliver better imaging and clarity because the tweeter separates from the woofer. Though your RS4's rear doors accept both types, coaxials might be sufficient back there since rear speakers mainly provide ambiance and fill. The front doors really benefit from components if you're willing to deal with the extra wiring complexity.

What's the difference between full-range and coaxial speakers for the RS4 rear doors?

Full-range speakers attempt to reproduce all frequencies with a single driver - usually 80Hz to 20kHz. Coaxials add a separate tweeter on top for better high-frequency response. The rear door panels in your Audi RS4 can accommodate either, but coaxials generally sound cleaner because that dedicated tweeter handles the harsh frequencies your ears are sensitive to. Full-range might work if you're on a tight budget though.

Do I need an amplifier for 6.5 inch aftermarket speakers in my Audi RS4?

Most quality 6.5 inch speakers want around 50-75 watts RMS to perform properly. Your RS4's factory head unit might only push 15-20 watts per channel. You'll notice the difference immediately with an amp - better dynamics, cleaner bass, louder volumes without distortion. Component speakers especially benefit since they're usually less efficient than coaxials. Though you can run them off head unit power initially.

What impedance should I look for in Audi RS4 replacement speakers?

Stick with 4-ohm speakers for your RS4's front and rear door panels. Most car audio systems expect 4-ohm loads, and your factory wiring should handle it fine. Some premium component sets come in 8-ohm configurations, but those typically need more power to reach the same volume levels. The 6.5 inch size gives you plenty of options in 4-ohm impedance across different price ranges.