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How to Upgrade Rear Door Speakers

I've documented how to replace the Tesla rear door speakers with lots of pictures and a frequency analysis before and after. This project will work on any door, but for cars without Sound Studio, the rears lack much punch or high-end.

The project is non-destructive. There is no visible difference, and no holes or cuts are necessary to the car. Wiring work is also trivial.

The end result was a little less dramatic than I hoped for, but it does improve the sound. Perhaps the next project will be amplification to give it a bit of extra kick!

See more at: http://teslatap.com/upgrading-rear-door-speakers/

Very nice write up. Thanks for posting. Any thoughts on adding a subwoofer? It seems that would make quite an improvement to the standard sound system.

Very nice job. Looking at the spectrum chart it appears the OEM speaker from TM was for the most part equivalent to the upgrade. Are you about to subjective sense an improvement?

Just curious, what's your background with acoustics? I'm an acoustical engineer and it looks like you have a similar background as mine.

We need EDIT. I was trying to write "are you ABLE to sense of difference/improvement?"

I was a but disappointed at first, but that was with the fader at the center. The new speakers are slightly lower in volume (as expected with 2 ohm to 4 ohm change). After a bit more critical listening (in the front seat) and the fader set a little more to the back, I'm finding the overall sound (to me) is better. I'd say I'm now happy I did the project and the sound seems a bit more balanced. It's not a huge change, but now seems worth the effort. The bottom end is still weak, but I didn't really expect any improvement there.

Adding a subwoofer and amp is likely my next project!

I'm an electronics engineer (among other talents), and know enough to be dangerous in the acoustical area! I try to be as objective as possible and prove if a project really does what I expect or not. That said, I really don't have a great test setup, but it does give a reasonable analysis. Ideally we'd want a sweep generator and spectrum analyzer. Both are beyond my fun projects budget!

Arrggg - should be "I was a bit disappointed at first...."


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