ENGLISH
ENGLISH
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is proportional to the headphone’s load impedance. Low impedance headphones will be louder than high impedance types for a given volume
setting. Use the volume control carefully to set your preferred level and remember that the same rule applies to headphones as speakers.
Warning: Listening for a prolonged period at high sound pressure levels can cause permanent hearing damage.
PROTECTION MECHANISMS
The amplifier will protect itself or its load from three types of potential failure:
1. Over-temperature.
2. Over-current and or short circuit.
3. DC offset.
The amplifier will isolate the loudspeaker output under any of these conditions to avoid po-tential damage to itself or the speakers. The fault
status will be displayed. Speaker relays will reconnect the output after a short delay and only if the fault has been cleared.
Over-temperature
Like most amplifiers, the i20 needs to be well ventilated. Although it is designed to run cooler than conventional amplifiers with similar power
capability, it still needs to have a clear path to cool its internal metal heatsink. The ventilation slots on the top and bottom of the case must be
clear of obstructions. It is important to avoid placing other pieces of equipment on top of the amplifier, as this will restrict airflow and heat dissi-
pation.
Immediately the display indicates an “Overheating” message it will automatically mute the loudspeaker output. The output will be reset when
the temperature drops to an acceptable level. To prevent this from happening again, make sure the amp is not located inside a cupboard restrict-
ing airflow, on a shelf with limited space above it, or placed underneath other equip¬ment. It may also be the result of the amplifier driving low
impedance loudspeakers (less than 4 Ohms) at high levels for an extended time, causing the temperature to rise above the pre-set 90 Centigrade
limit.
The internal temperature can be monitored. Press the left-hand knob and then select Display Info, by pressing again. The display will show the
heatsink temperature in centigrade only. Turn the right-hand control knob to exit Display Info.
