Jadis I-35 Owner's Manual page 9

How to match your amplifier to your
The load impedance is pre-adjusted in the factory for loudspeakers
Nota: For a good listening level, choose loudspeakers with an
efficiency of more than 90 dB.
Internal adjustment of impedance:
Warning for connecting the speakers: This equipment reverse the
phase.
loudspeakers
from 4 to 8 ohms.