Synergistic R Hologram A or T3 on preamp ???

Joris, I compared the Hologram A versus the T2 on my preamp and preferred the T2. That certainly was not the case on my amp where I tried both the Power Reference and the T2. The Hologram A was clearly best.

I think the difference between the T2 and T3 is just gauge of wire. You don't need the heavy gauge on a preamp.

I should say that the Hologram A is a pain to use because of its bulk and stiffness.

I would predict that you will get the greatest improvement with the D.

I think once again that there are system differences that affect which pc is better.