Thanks Mrjstark.
Yes, of course the replacement of Rega amp is an option.
However it must be good and cost efective and a real improvement.
And I want to keep options open for the future. Like bi-amping to get better bass control and driver efficiency.
I am keeping an eye on some Class D projects (wonderful control of the Naos with nuforce, for example).
But I am not a techy so not really know how to evaluate pre and power match ... at least before I listen, of course.
I just wonder if I can explore more of the VTL with another amp.
Feel free to leave your sugestions.