I am in Los Angeles, and just had the Reus system installed. It is a great upgrade to the very good stock system. The Tesla’s are challenging to upgrade due to how they were design and what the Tesla software is expecting from speakers. What is added at this time is replacement of the two front mid-ranges on the pillar by the door (not the top surrounds), a high fidelity tweeter on the rear view mirror, and an additional amp to power 1 or 2 subwoofers in an enclosure., that sits in the trunk floor space. Nobody would know anything changed in your Tesla which is great.
In terms of the bass, it is very tight, smooth, and spot on, one of the best I have heard across the entire range. The 2 midrange they replace up front is exceptional and adds clarity, it is where you hear a majority of the sound stage. Finally the tweeter added to the rear view mirror and the precision and presence it adds that I feel ties the whole system together, it’s an exceptional upgrade for those looking to take their system to the next level.
With that said, I think even more can be done to enhance and improve the Reus system, and I have been giving this feedback, all of which I am sure will be addressed with higher system options, I am talking audiophile level improvements most won’t care about or notice.
Before buying or going with other upgrade options, I highly recommend listening to Reus system in the Tesla. If you are in the LA area, hit me up.