Auris Audio HA-2SF headphone amp: remote power supply and arrow indicators

Serbian company Auris Audio has released a tube amplifier for headphones HA-2SF-a development of the popular model HA-2SE. With minimal differences in the name, the HA-2SF bears little resemblance to its predecessor. The case with leather and wood trim has become lower — some of the electronics have been removed from it. This time the power supply is made remote — so that this source of interference and interference can now be moved away from the amplifier.

Instead, the HA-2SF got a pair of arrow indicators, which gave the novelty an even more vintage look. In addition to the unbalanced connectors, the HA-2SF received a balanced input and a balanced headphone output. The device can also be used as a preamp — a separate RCA output is provided for this purpose.

The three-position impedance selector of the headphones was placed in the recess of the upper panel. Nearby, in the same recesses, there is a volume encoder and an input selector, of which there are still three in the HA-2SF.

The four PL95 triodes in the HA-2SF were replaced with ECC99, leaving only the double ECC82 triode in its place. In addition, according to Auris Audio, the amplifier has passive elements of a premium class. It is claimed that the novelty showed “sensational vocal reproduction” with tonal clarity and transparency throughout the range.

As for the price, in the UK, the Auris Audio HA-2SF will cost 2,500£ – about 20% more than its predecessor.