Hi all anyone tried or use either of these - thinking valves may be the way forward, or tdp's hybrid version thinking of listening to one , either the straight valve or "t" hybrid, to replace my sugden a21a, i love my sugden but find it can find some complex pieces (when i rarely play Unkle etc) too much. speakers are zingali's tt is gyro se, phono stage is 834p sig (which i like the sound of)