After the premiere of Qualiton A20i in autumn 2015, in autumn 2016 Audio-Hungary Kft unveils another new premium category power amp. As the new flagship of the brand, the new integrated, vacuum tube stereo power amp, named Qualiton A50i, is expected to find a way right to heart of lovers of class A vacuum tube electronics. For this reason, it features just the right characteristics. Let’s have a look at them.