22 years ago the beautiful Nagra VPA was launched. Pure Class-A Push-Pull triode Monoblock amplifiers. The VPA consists of a pair of mono block vacuum tube power amplifiers. Equipped with symmetrical and asymmetrical inputs, they offer a power output of 50 Watts through a pure class A output stage with no feedback. Since its introduction in 1998, the VPA has won prestigious awards and, more importantly, become a reference for a tremendous number of audiophiles all over the world.