@Zaxxan
I've updated the firmware and the sound signature has changed quite considerably.
Dare I say my problem no longer exists?
I've not had chance to really test it yet properly but it seems my boomyness has gone.. Which is exactly what I was hoping for when the update said 'issues fixed' around the frequency I was having bother with.. So thanks for the heads up on that!
I'm still gonna use a bit of EQ for fine tuning to my taste and environment but that's a longer job as i listen to a verity or sources from FLAC to internet radio, the latter of which can be quite inconsistent in quality... But that's gonna take some smaller tweaks over a longer period to get it bang on.
I'm very happy.. I guess edifier realised there was an issue, so fair play to them for releasing new firmware.