Porsche 911 Speaker Size

Rear Door Panel Speaker

Front Door Panel Speaker

Rear Speaker

Porsche 911 Speaker FAQ

What speakers should I replace first in my Porsche 911 for the biggest sound improvement?

Replace the front door panel speakers first. The 5.25-inch front speakers handle most of your music's midrange frequencies and vocals - around 200Hz to 4kHz typically. Since you're sitting closer to the front speakers in the Porsche 911, upgrading these will give you the most noticeable improvement. Component speakers work better than coaxials here because they separate the tweeter from the woofer. You'll hear clearer highs and better imaging. The rear speakers can wait since they mainly provide fill and ambient sound.

Can I install component speakers in all positions of my Porsche 911?

Yes, both front and rear door panels accept component speakers. The 5.25-inch positions give you flexibility for separating tweeters and woofers. Front door components might need custom tweeter mounting though - check if your Porsche 911 has factory tweeter locations. Component systems usually handle 50-100 watts RMS better than coaxials. The crossover networks can mount behind the door panels in most cases. Rear components are less critical since... well, you're not sitting back there listening.

What's the difference between coaxial and component speakers for the Porsche 911?

Coaxials put the tweeter and woofer in one unit - easier installation, single mounting point. Components separate them completely. In the Porsche 911, coaxials work fine for rear fill but components give you better sound staging up front. Component tweeters can aim directly at your ears while the woofer handles bass from the door. Coaxials typically handle 20-80 watts RMS, components might go 40-120 watts. The impedance stays around 4 ohms for both types. Installation time... coaxials take maybe 30 minutes per door, components could be 2 hours if you're running new tweeter wires.

Why do some Porsche 911 models have 4x6 rear speakers instead of 5.25?

The 4x6 size appeared in earlier Porsche 911 models from the factory design constraints. Those rectangular speakers fit differently shaped rear panels - probably had to work around the engine bay packaging. The 4x6 speakers typically produce less bass than 5.25-inch round speakers because of the smaller cone area. You're looking at maybe 15Hz less low-end extension. Sound quality... round speakers generally perform better for full-range reproduction. If you're upgrading from 4x6, consider the mounting depth differences too.