I just got a new PX-S7000 and everything is great except when I connect headphones.
I have a nice new pair of Sennheiser HD599 headphones and they sound perfect when connected to a phone or computer, but when connected to the keyboard there is a certain static, hissing, buzzy noise that is very annoying. The noise is only triggered when certain notes on the keyboard are played. Some notes cause it and others don’t, so it must be related to the pitch frequency somehow. However, what’s even more strange is when I connect the headphones with the 6.3mm jack there are many more notes that cause the static than there are when connected with the 3.5mm jack.
I also tried it with a cheaper pair of headphones and although the sound quality is much worse, there are less notes that produce the static noise but it still happens on a few.
Also, the Casio itself doesnt make any noises like this when playing from the built in speakers.
Does anyone have any ideas how I can solve this? Any advice would be much appreciated!