My 2 cents:
1. There definitely is an issue with the sound in the car (still trying to reach someone from Lexus / Harman Kardon)
2. How do I know? I have both a high end system at home (KEF LS 50W, universally impressed people with clarity and quality) and I measured the damn thing and it looks...
Same with the RX350h 2024. I did a sound analysis here: Help with mysterious sound issue with Lexus RX 350h 2024 Mark Levinson 21 speakers
I'm trying to contact Natan Budiono who works in the field and possibly for Harman Kardon automotive.
DM me or reply here if you'd like to stay tuned to...