The Firebird preamp has a voltage boost stage and a buffer amplifier in each channel. This allows you to get the optimal gain, and also helps to highlight the maximum character of the tube sound. It also allows you to obtain different types of sound only by replacing tubes. Replacement of tubes is only possible on the equivalent of a given type of lamp used in preamp – 6922 EHG (ECC88), 12AU7 EHG (ECC82), 6H30Pi (6N6P).
The Firebird preamplifier offers natural sound with a wide range of editing possibilities through the use of various tubes. For example, for 6922 EHG tubes, these are ECC88, 6N23P, 6N23P-EW, 6DJ8 etc. The tubes lifetime of this type can reach up to 10,000h. The use of a current buffer at the output allows you to use the preamplifier even with the most demanding power amplifiers. Thanks to this, the preamp can work with both integrated amplifiers and power amplifiers.
Firebird has a solid metal casing (all in the basic version has a mass of about 7 kg), aluminum knobs with a diameter of 30mm, metal, turned legs, solid brand switches, RCA CMC sockets, IEC and a dedicated source selection system and connected receivers. The input signals are switched using mechanical relays (the best signal separation and transparency) located in the immediate vicinity of RCA sockets. This avoids audio signals susceptible to interference go to the selectors on the front panel. The selectors on the front panel only serve to control audio-independent microcontrollers that re-activate the appropriate relays, allowing the user to select the source or receiver. On request it is also possible to use the remote volume and power control.