Although I agree with
@pokrog regarding the substandard bundled cable, but I doubt replacing it, will cure a rainy day.
EDXS has some issues:
- It has a very low impedance of about 18 ohms, it requires an amp that has a low output impedance, to drive them.
For example, a Topping DX7 pro (top of the line) has an output impedance of about 9 ohms (from memory), this is too high! A chord Mojo2 or Hugo2 has about a fraction of 1 ohm output impedance - that is good!
- EDXS is also power hungry (well, a bit!) , you need an amp of low impedance, that can pump at least about 0.5W into 32 ohms (a standard measurement to look up), 1 W would be better. Again those Chord DACs have 0.4W and 0.7W output respectively, which is OK, they go loud enough but won't shake your skull (if you are after such a thing).
- EDXS also has a resonance at 5kHz+, which can make it sound
Tizzy - this, I am of firm belief, is because of the back grill bars. They are metal and ring like a bell! Just pluck one with your finger nail and listen. I found a cure for it! Just search under my name and Edition XS mod. - you will find it.
- By all means get a replacement cable for it, not any cheap crap from Amazon basics! Read for reviews here and there. I ended up making my own.