A similar company is www.gapower.co.uk?you can see the same technology .Coincidentally, it is the same agent as qsa in hong kong. All these brands are made by Hong Kong?for different markets
Maybe I.can compare with S100 later.The artel switch was recommend by my friend who use merging hapi.Artel is professional in clock and audio processing.
Chinese agent claims the Acapella cable is 9N Silver cable?then I asked the Acapella.
Hermann Winters replied me that 9N silver it is true.The cable is processed by Degussa Germany.
I'm surprised by this ‘truth’