JBL PartyBox 100 Sounds AWFUL using AUX input

Those who bought Partybox speakers, might consider checking the difference between your Aux input vs Bluetooth, you'll be surprised how JBL kept this to the consumer if you have used AUX and you think it sounds good? NO. the sound quality is not as good as what you've paid for, Aux input doesn't process the signal, it sounds flat and cheap. you will only experience the true sound quality using Bluetooth. And also, Harman customer support can't say something to fix the issue, they will just ask you to change the AUX cables, test on other devices, even though the reason behind this issue has already been said. I tried it all recommended fix and bought a nice piece of Aux cables which cost 20-30usd, and still sounds crap crap crap.