My experience was somewhat different.
I picked my Hugo up just before a flight. Using it with AK240, I noticed immediately that each musical instrument seemed more distinctive but the overall improvements were initially perceived as 'smaller than expected“.
After falling asleep (more like short naps) and awaken several times with the music playing, it suddenly dawned on me that it is music I have never experienced before.
I love the AK240 + Hugo connected by the optical cable came with the purchase. Any suggestions as to which third party optical cable is best with Hugo + AK240?