Not really published on the market (at least not well spotted around big online webstore), but I manage to get a pair of it.
This is the CAST version of the Duelund Resistor. Well, for the Capacitor, the CAST definitely better (less ringing, so quiet, dynamic). How about this Resistor? Not sure though, plan to test it somewhere. Picture below is the 5W version.
The comparison between the old Duelund Resistor (1oW, brown enclosure) and the new CAST one (5W, black enclosure). Also I put a pair of Auricap 6uF/200V behind as size comparison. This is definitely a “long” Resistor.
The price? Expect to pay at least double to upgrade from the standard to CAST one.