Input:
Proprietary, electronically balanced, discrete enhanced class A circuitry, floating ground, non- inverting or inverting mode.
Optimal performance with either balanced or single ended (unbalanced) sources.
Unbalanced sources are automatically balanced right at the input of the FM 711-MKIII.

Input Sensitivity:
1,6 V RMS for full output

Input Impedance:
At all level settings from balanced and unbalanced sources: 40 kOhm

Chassis Resonance Damping:
New chassis design effectively isolates sensitive electronic and mechanical components from potential negative influences such as induced resonances. Specific purpose-designed anti-resonance technology is employed.

Load Impedance:
No minimum impedance. The amplifier is designed for 1 Ohm to 10'000 Ohm systems. It can drive any speaker impedance (even below 1 Ohm) with dynamic (music) signals without any limiting, compression or other negative effects on the audio signal.
Despite this, the amplifier is fully protected against short circuits, open circuits and all other adverse conditions via unique on- board safeguarding circuits that continuously survey all important parameters.