The Rudistor portable looks to be several years behind current portable amp SOA. It has the features and kind of looks like my HeadAmp AE-2.
The real amusing part of this page is that at the top, Rudistor makes this statement in an attempt to differentiate this amp from other portables:
"Although it shows a traditional external design under his solid magnesium body it hide ..."
while down below in the proviso stating that blue is the only available customer:
"Due to designer decision the XJ03 ( as well as all the new portable products ) is available only in electric blu anodized aluminum body, with engraved graphics and silver color panels."
What happened to the magnesium body?