4
Second channel analogy
FRONT PANNEL DESCRIPTION
1. Hi-Z instrument input is used to connect the instruments with high output impedance (guitar,
bass, etc.). It is also suitable for active pickups and electronic instruments like synthesizers or samplers.
The impedance of Hi-Z input is 1Mohm.
The transistor impedance converter is based on a selected J-FET transistor and the output of this
system is directed to the microphone transformer, for revealing the full sound potential of devices
working with Hi-Z input.
2. Gain. It regulates the sensitivity of the microphone input, and an instrumental HI-Z input.
Gain sensitivity is adjustable in 5 decibel increments ranging from -10 to -65 dB for microphone and
Hi-Z input.
3. SIG signal presence indicator. It works for both signal inputs: MIC and HI-Z. The signal for this
indicator is obtained from the output stage of the preamp, after the output fader.
4. Output fader. Adjusts the output signal from the OUT socket.
5. 1200/300 input impedance switch. It switches the input transformer winding, changing the input
impedance form 1200ohm to 300ohm. The impedance is reduced to 300 ohms when the button is
pressed.
6. DI instrument input switch. Incoming signal is switched between MIC and HI-Z inputs. When the
button is released, the MIC input is activated, the Hi-Z input is activated when the button is pressed.
7. Phantom power 48V. Switching the phantom power on is indicated by the red LED.
8. Signal phase switch
. It rotates the output signal phase by 180 degrees.
Rev. C
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