Is the Trends PW-10 PSU the same quality as the SE power supply (4A)?
In General, SE power supply (4A) of Trends TA-10.2 Class-T amp. will provides more punching (powerful) sound especially base sound when the Trends PW-10 PSU provides higher resolution. However, it is highly recommend to use Trends PW-10 PSU if you want to set up a Trends Hi-Fi systems (TA-10 Class-T amp + PA-10 Tube Preamp) or Trends Desktop Hi-Fi Systems (UD-10 USB Audio Converter, TA-10 Class-T amp and PA-10 Tube Preamp).