It's not easy to make a 4.4mm adapter super-small owing due to the size of the Pentaconn socket. But ddHiFi's strives to challenge sizing limits limits and has successfully made the new DJ44B / DJ44C even lighter and smaller.
A higher standard of gold plating has been applied to the metal contact points on the custom 4.4mm female socket, and a transparent socket shell has been added in order to better assess the plug-in contact of each socket.
A gold-plated copper socket shielding ring was added to the DJ44B / DJ44C which blocks interference signals at the socket gaps. Internal connection wiring has been improved with a mixed conductor of 6N OCC and 6N silver-plated OCC to ensure efficient signal transmission within the confined space.