I just ordered the
B.A. Designworks ultimate kit to upgrade the standard (non-UHFS) audio system in my Model S 75D
- $995
- 4 door speakers
- Rockford Fosgate P1 Punch 10" sub
- Rockford Fosgate r500x1d amp
- Wiring/install kit
I tried the Light Harmonic S4D door speakers and they were a definite improvement, but not $1k worth better than the standard audio, especially without a sub being included. For the same price, getting the "same" speakers plus sub is a no-brainer.
I also added some Armaflex 1/2" pipe foam (6' piece from Home Depot for $6) in the front doors around the speaker and in the port holes on front and rear doors as described in
this post and it did make a small improvement to the stock speakers.
I will update once I install and try out the new kit. Hoping this is the ultimate way to go vs the $2500 UHFS upgrade (now bundled with the premium package for much more).