Three of Erzetich’s headphone amplifiers (Bacillus, Bacillus Tilia and Perfidus) have gone under the knife. While their entrails are mostly untouched, the most obvious difference is now their appearance. Acrylic front panels have been replaced by 7 mm thick aluminum that demanded a different graphic approach, along with some other tweaks and upgrades on their exterior. 

“During the first few years we gathered feedback from our users and resellers and took note of their remarks and wishes,« says Blaž Erzetič, the owner. »We had to update our units for the purpose of manufacturing optimisation and this led to a slight redesign of them. While Bacillus has only a new dress, the other two models have also some technical upgrades, especially Perfidus.”

The main story stays the same: exclusivity of a boutique low volume production and attention to the sound and appearance. All units are handcrafted and tested several times during the production by ear and by measuring instruments.