Analog circuit made on discrete semiconductor elements operating in class A,
without the use of general negative feedbacks;
input resistance - not less than 4.7 MΩ;
input impedance at on. PAD functions - 47 kOhm;
attenuation PAD - 20dB;
noise level unweighted (10-20 kHz) - less than -110 dBu;
non-linear distortion at an input level of -20 dBu (guitar) - less than 0.001%;
THD at input level 0 dBu, 1 kHz - less than 0.0009% (typ. 0.001%);
THD at 0 dBu input level, 100 Hz - less than 0.0009% (typ. 0.001%);
maximum input level (distortion less than 3%) - more than +14 dBu; 4.35 volts (RMS); 12.32 volts (p-p).
maximum input level at on. PAD (distortion less than 3%) - more than +34 dBu;
balanced output impedance (XLR) - less than 33 ohms;