I have tried that. Actually I have recorded both versions now. They doesn’t sound as different when listening to it now actually, but still I think you can hear what I mean. Please click the download button to avoid artifacts.
The “bad” (listening while recording) version:
http://www.tunescoop.com/play/323931393632/bad-recording-sound-wav
The “good” (listening to the recorded sound) version:
http://www.tunescoop.com/play/323931393633/good-recorded-sound-wav
The “good” version do sound exactly like my Nord Stage 2 when I use the headphones there. The “bad” (it’s not bad, just not perfect) version is a bit muzzled and more like in a box.