Auris HA-2SE + is a balanced headphone amplifier. The lineup of tubes is classic Auris, with the use of four 7-pin Ei PL95 pentode power NOS (new old stock) tubes, which are the equivalent to 6DL5, and a single ECC81 dual-triode input tube, also known like 12AT7.

Transformers are the essence of quality, and therefore products of Auris Audio contain only manually wound transformers on a double C core produced by Auris Audio. Every single transformer is manufactured in compliance with strictly defined requirements, thus providing almost a linear characteristic in the whole acoustic/sound range.