FRONT PANNEL DESCRIPTION
4
1. GAIN. It regulates the sensivity of the microphone input, line input, and an instrumental HI-Z input.
Gain sensivity is adjustable in 5 decibel increments ranging from -20 to -80 dB for microphone input,
+10 to -20 dB for the line input and -5 to -55 dB for HI-Z input. This controller also plays the role of
a switch activating a given input. The line input is activated by turning the controller counterclockwise
from the lower OFF position. Similary, the microphone input is activated by turning the controller
clockwise from the lower OFF position. The HI-Z input is activated by plugging in a guitar cable into
the HI-Z socket and setting the GAIN switch in the microphone (MIC) position.
2. 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 JFET transistor and the output this system
is directed to the microphone transformer, for revealing the full sound potential of devices working with
HI-Z input.
Rev. C
1
2
