7
5.3. Signal input connections
The amplifier HZA4-120F features 4 balanced and line level analog signal inputs (one
per amplification channel) on its rear panel.
Signal input connectors are 3 position screw terminal block (40, 41, 43, 45). The wiring
is:
HOT or direct signal
> Pin +
COLD or inverted signal > Pin -
GROUND
> Pin
⊥
For unbalanced connection short-circuit pin
⊥
to pin -.
TACK
outputs (42, 44) available for inputs 1 and 2 are parallel to the input and serve to
re-send the signal of these inputs (
INPUTS, CH1 / CH2
) to other input channels,
amplifiers or sound systems.
The input impedance is 20K
(balanced) with a nominal input sensitivity of 0dBV(1V).
This impedance makes possible to parallel several amplifiers without losing audio
quality.
