I previously had a K6, which I modified with 10W and improved the sound quality, but ultimately it broke. Recently, I received a broken K5, and after repairing it, I found that it wasn't very useful and ended up selling it.
Now I want to switch to another device, but I still can't forget the K6's spectrum and other custom features.
I hope you can offer some suggestions. I have a budget of $250 and would prefer something with native, high power or wide bandwidth capabilities if possible.