For the ARC:
INPUT IMPEDANCE
120K ohms Balanced, 60K ohms SE.
OUTPUT IMPEDANCE
600 ohms Balanced, 300 ohms SE Main (2). 20K ohms minimum load and 2000pF maximum capacitance. Outputs (3):
spectron has an input of 50k ohms
INPUT IMPEDANCE
120K ohms Balanced, 60K ohms SE.
OUTPUT IMPEDANCE
600 ohms Balanced, 300 ohms SE Main (2). 20K ohms minimum load and 2000pF maximum capacitance. Outputs (3):
spectron has an input of 50k ohms