Wunder Audio CM7GT - Manual (Page 2)

A special shock mount/stand adapter is provided and should always
be used to mount the microphone on floor stands or booms. The
clamp of the shock-mount should be guided from the lower end of the
microphone upwards until it is placed near the gravitational centre
(slightly below the badge or centered over the badge). The shock-
mount can now be placed with the microphone on stands or booms
with standard thread sizes. It may also be swiveled against the stand
axis to suit the recording angle.
Powering of the microphone:
The required PSU is included in the delivery. It is clearly marked and
quite obvious by connector type and size, how to connect the
microphone to the power unit with the supplied CM7/GT microphone
cable. The audio frequency may be taken from the power unit
transformer balanced by a conventional audio cable with standard
XLR-type connector.
2. The CM7GT Power Supply
This PSU supplies the microphone with the 1.1 volt filament and
120V plate voltage for the vacuum tube,
Prior to connecting the CM7/GT to AC power, check the AC voltage
of the power line you are going to connect to the CM7/GT.
The CM7/GT PSU has an internal AC voltage selector switch.
To check CM7/GT AC voltage selector switch first unplug the AC
cable (power plug) from the PSU.
Use a flat-blade screwdriver to unscrew the lid to the PSU and
remove.
You will see a small chrome toggle switch located inside the unit
directly next to the large AC transformer.
To set the switch to 115V, toggle the switch towards the transformer.
To set the switch to 230V, toggle the switch away from the
transformer.
Warning: Connecting the CM7/GT to the wrong AC voltage may
destroy the unit and cause fire and/or electric shock.