User manual

55 000 057 - B MIXY - User Manual 31
4.8. Power supply
MIXY operates from its internal 4-element NiMH battery, or from a DC external
voltage source. MIXY automatically and seamlessly switches between these power
sources, with priority given to the external DC source.
This external source may be a power adapter delivering a filtered DC voltage (8 V
minimum) or an external battery (like e.g. an NP1 battery pack).
An icon on the display shows the battery level:
x 5 segments = 5.6V (full charge)
x 4 segments = 5.1V
x 3 segments = 4.8V
x 2 segments = 4.4V
x 1 segment = 4.2V (should be recharged shortly)
Whenever the battery voltage goes down to 4 V (1 V per internal element),
MIXY is automatically shut off. This prevents damaging the battery by
discharging it too deeply. Conversely, it will only be possible to restart MIXY from
its internal battery after it has been recharged to at least 4.5 V.
It is thus highly recommended to recharge the unit if only one segment has been
displayed for half an hour or more!
MIXY’s power consumption and hence its battery range depend much on the
operating conditions, such as the number and powering mode of the microphones,
headphone impedance and listening level, etc.
However, as an example, starting with a full charged battery, MIXY will operate for
at least 12 hours with dynamic microphones (including ribbon microphones) and a
600 : headphone. In such condition, MIXY draws less than 1500 mA from a
14.4 V external source.
MIXY draws a near-constant power (not a constant current) from the external
source when the voltage varies.