MixPre
User Guide
6
Powering the MixPre
Apply your choice of power source. Turn the master power switch
located in the upper right corner of the left side panel to the On
position. To ensure the battery/power status indicator displayed on
the touchscreen shows accurate level and status, select your battery/
power type in the Power menu.
When using AA batteries to power the MixPre, we recommend
Energizer Ultimate Lithium (not alkaline batteries). The high internal
resistance of alkaline batteries makes them only suited to devices
requiring low current (less than 25 mA), not higher power electronic
devices such as the MixPre.
Incorrect use of batteries poses a danger of explosion. Replace only
with the same or equivalent type. Properly recycle batteries. Do not
crush, disassemble, incinerate, dispose in a fire or expose batteries to
high temperatures.
Save power by turning off unused channels.
With multiple options for powering, your MixPre can operate in a wide
array of applications and environments.
MIXPRE-3 AND MIXPRE-6 POWER OPTIONS
1. Optional MX-PSU AC wall adapter to USB-C power supply.
2. Four AA batteries installed in the included MX-4AA Battery Sled.
3. Eight AA batteries installed in the optional MX-8AA Battery Sled
accessory.
4. One or two Sony-type L-Mount batteries installed in the optional
MX-LMount battery sled accessory.
5. USB-C to USB-C cable connected to a USB-C host computer or AC
wall adapter.
6. USB-A to USB-C cable connected to a USB-A host computer or
AC wall adapter. The unit will enter a low power state and some
functionality will be limited with this power option.
7. MX-USBY Dual USB-A to USB-C optional accessory
cable connected to a USB-A host computer. Use this
cable option if your computer is unable to provide
adequate power with only one USB-A port.
MIXPRE-10T POWER OPTIONS
1. Included XL-WPH3 AC to DC 12 V Power supply with 4-pin Hirose.
2. Eight AA batteries installed in the included MX-8AA Battery Sled.
3. One or two Sony-type L-Mount batteries installed in the optional
MX-LMount battery sled accessory.
Power Switchover and Priority
MIXPRE-3 AND MIXPRE-6
To preserve battery power, USB-C power sources take priority over bat-
teries if both are connected with one exception - if the USB-C power
source does not meet the full power requirements of the MixPre, you
can choose to power from battery or continue to power from USB-C.
An underpowered MixPre will be able to use two of the three or four
channels with 48 V phantom mics. Other channels can still be used
with dynamic mics and line level, Aux, or USB sources. In a low power
state, the MixPre automatically:
1. Dims LCD and LED Brightness.
2. Disables USB-A port.
3. Disables HDMI TC port.
For protection against accidental loss of power, the MixPre incorpo-
rates circuitry to automatically switch over from USB-C to batteries.
MIXPRE-10T
For preservation of battery power, 4-pin Hirose power sources take
priority over batteries if both are connected. For protection against
accidental loss of power, the MixPre-10T incorporates circuitry to
automatically switch power sources.
