I tried a Whest PS.30R in my system comparing it to my then BAT P10se. The Whest was very close. The BAT just had that valve(tube) richness and a bit more scale, which I prefered. However the BAT is 2.5 times the price of the Whest here in the UK.
The DT version is another league again I believe.
The DT version is another league again I believe.