We created Hypohybrid AB100 for the most demanding and dedicated audiophiles because of our passion for music. The combination of unique topology without negative inter-stage feedback and precisely-selected components contributes to its unique natural sound. The vacuum tube input stage increases the music signal voltage and the transistor output stage gains in current. This combines perfectly the advantages of the two main amplifier stages – the natural character obtained through the vacuum tube amplifiers and the power gain of the transistor amplifiers. The amplifier is handmade in our laboratory in Sofia, where we pay special attention to each detail and component, taking into account its specific sound input in order to achieve a unique natural performance.