... -265 V / 65-135 V selectableVoltage Gain (dB): 23, 26, 29, 32, 35, 38, 41, 44 dB selectableLevel adjustment (per CH.): Front-panel ... -265 V / 65-135 V selectableVoltage Gain (dB): 23, 26, 29, 32, 35, 38, 41, 44 dB selectableLevel adjustment (per CH.): Front-panel ... -265 V / 65-135 V selectableVoltage Gain (dB): 23, 26, 29, 32, 35, 38, 41, 44 dB selectableLevel adjustment (per CH.): Front-panel ...