Hi John,
thanks for your kindly response.
Forgot to tell you which you have a very beautiful system.
I am talking with Sager company there which is a Signal Transformer distributor.
I am looking for the DU-3 (which has double load capacity than the amplifier needed power).
I see on e-bay a DU-5 but is not in excellent cond.
Do you think the DU-3 could be enough?
Paolo