miniDSP Ltd, Hong Kong /
/ Features and specifications subject to change without prior notice
9
3
C
HARGING AND
P
OWER
3.1
F
AST
-
CHARGING THE
HA-DSP
The supplied 2A USB fast charger is the recommended way to charge the HA-DSP. Using this charger ensures
optimum charging. If you need to play audio over USB at the same time as fast charging, play audio through the
HA-
DSP’s USB Type A port. Alternatively, connect via
a USB hub with at least 2A capacity.
Note: some USB ports supply only limited current. Therefore, while connected to such a device via the Micro-B
port, the HA-DSP will only trickle-charge. If it is in use at the same time to play audio, it may even continue to
drain the battery.
3.2
C
HECKING BATTERY LEVEL
1.
Turn the amp off (if it is not already)
2.
Press and hold the control button.
3.
After a second or two, between one and four of the LEDs will light up. One LED means the battery is very
low, while four LEDs means that the battery is fully charged.
4.
Turn the amplifier back on if required.
3.3
T
URNING THE AMPLIFIER ON AND OFF
To turn the amplifier on, rotate the volume knob clockwise. The DSP will take a few seconds to initialize, after
which one of the LEDs (numbered 1 to 4) corresponding to the selected DSP preset will turn on.
To turn the amplifier off, rotate the volume knob counterclockwise until it clicks and the preset LED turns off.