I had the same problem (no 3) from day one! I returned the HPs to Digitec, who gave me a full refund (well done) and bought new ones. JBL have a known problem, so why continue to sell this series?
I have had the JBL Quantum Duo for a few months now and have been very satisfied so far. I use this between my laptop and PS5. On the console it works perfectly. Recently there have been some problems in connection with the laptop.
1. the JBL QuantumEngine app does not recognise the speakers despite the USB connection (right from the start).
2. with videos, e.g. YouTube, there is a "crackling" at certain pitches which is very exhausting in the long term.
3. for about a week now, despite constant use, the speakers go into standby mode after about 15 minutes and I have to switch them on again. This is very annoying and takes away the joy of connecting these otherwise good speakers to the laptop.
Does anyone know of any solutions to these problems?
- Speakers are always connected via USB
- Windows 10 operating system
If these speakers are still under warranty, you should contact JBL. If they are no longer under warranty, you should still try. Personally I had more or less the same problem, warranty expired. I contacted JBL and they sent me an email to return the goods to Sertronics, a company that must work for JBL Harman customer support. It's better to still have the invoice and the serial number of the speakers as proof of purchase. To my astonishment, I received a pair of new, working speakers free of charge after about ten days! I thought this was a very nice gesture and thanked them. I didn't even have to pay the postage because I also received a postage label paid by the recipient. Pietro.
