I own the Jota amp and using all three set of tubes available the VV32B,300BXLS,52BX tubes and upraded the 6922 to the telefukens CC According to what other equipment used and cables etc its hard to tell Im using the Aliante Model Ones and completely happy with them Ive owned the Silverline Sonatas and a very good speaker but not on the Jota amp but will stay with the Aliantes thats my choice Thanks