I’ve not tried the newer Gold Lion tubes in my La Scala as it was made prior to Aqua making the change from Telefunken. I haven’t experimented with tube voicing in my DAC- as you know there are many opinions and options out there.
I have to say though that after switching to the NOS Tele the difference was immediately noticeable- especially in bass reproduction. It would be interesting to see how the Genelex compares to the NOS tubes I have- maybe I’ll pick up a set.