Where is the mains phase – at the left or the right pin?
There is no phase nor neutral pin on your amplifier mains socket because D-Premier has been designed to be immune to mains phase inversion. Phase inversion differences come from asymmetrical values of parasitic capacitors found in power supply designs using conventional high-turns transformers such as EI or toroidal ones. There are 2 types of parasitic capacitors : those between phase-earth and neutral-earth (which will cause current noise on earth line) and those between primary and secondary windings (which will cause unwanted noise on secondary voltage rails and sometimes audio ground). Instead, D-Premier uses a proprietary low-turns planar transformer, made of 2 identical PCBs assembled upside-down and a high-efficiency ferrite core, achieving near perfect primary and secondary winding symmetry. Parasitic capacitors values obtained are 20 to 50 times lower than commonly found values. In addition, an input bridge rectifier is implemented to reduce furthermore any residual parasitic
There is no phase or neutral pin on your amplifier mains socket because the D-Premier has been designed to be immune to mains phase inversion.Phase inversion differences come from asymmetrical values of parasitic capacitors found in power supply designs using conventional high-turn transformers such as EI or toroidal ones. There are two types of parasitic capacitors: those between phase-earth and neutral-earth (which will cause current noise on earth line) and those between primary and secondary windings (which will cause unwanted noise on secondary voltage rails and sometimes audio ground).Instead, the D-Premier uses a proprietary low-turn planar transformer made of two identical PCBs assembled upside-down with a high-efficiency ferrite core, achieving near-perfect primary and secondary winding symmetry. Parasitic capacitor values obtained are 20 to 50 times lower than commonly found values. In addition, an input bridge rectifier is implemented to further reduce any residual parasitic
