Just for the record it had a cheapo copper XLR cable from China, a set of Ether Angled pads, some felt and dynamat on the back side. I did note several times it didn't seem to scale. You didn't like it, I don't like it, and my son who knows a good deal took them twice, but gave them back both times.
Even if that is all true, it doesn't mean the 400 I owned, 400i and 400S I've heard is a match for the 500. The 500 is similar to a HE-6 (probably the most respected can over the past 10 years) - except the trace is aluminum not gold, and it was tuned to have richer mids. The highest slot the 400 has occupied was 3rd in the HFM line-up after the 500 and 6. Now in the HFM line it's what? Susvara, HEKse, HEKv2, Arya, 560, Ananda, Sundara. Seven. If this was 9 months ago HE6se would have made eight.