www.cleveracoustics.co.uk
ZM 122 Audio Mixer
User Manual
7
Operating instructions
09. 19" Mounting Ears
The mounting ears are adopted to easily install the unit in a rack enclosure. Care should be taken to
install the ZM 122 with adequate space between other items in the rack to avoid overheating.
10. AC Mains Power Input
This connector is meant for the connection of the supplied power cord. Please check the supply voltage
accepted by the unit (220-240V AC~50/60Hz) and the voltage available from AC sockets before
connecting the unit to the mains power. This product falls under CLASS 1 and must have a protective
earth connection at all times.
11. DC Power Input
For connection to battery backup power sources, or for operation from leisure type batteries.
The ZM 122 mixer may be used from 24V DC power sources. Care should be taken to ensure an inline
fuse is fitted to the +ve supply and the power is connected with observing the polarity. When both the
AC and DC source is connected, the ZM 122 shall operate using AC mains whereas the DC supply shall
be only consumed whenever the AC supply fails or is disconnected.
12. LINE Outputs
Stereo outputs via male XLR connectors for connection to amplifiers or recording sources.
Connection should be made using high quality, balanced XLR cables.
13. MONO Output
A mono sum output of the main L/R mix via a 6.35mm (1/4") unbalanced TRS jack connector.
The output level for this output may be adjusted using the MONO control on the front panel.
14. MIC Output
A mono sum output of the main L/R mix via a 6.35mm (1/4") unbalanced TRS jack connector.
The output level for this output may be adjusted using the MIC control on the front panel.
15. REC Output
Unbalanced phono (RCA) sockets are to be connected to recording media such as cassette tape
recorder. The source for this output is replicated from the main L/R mix.
16. LINE Inputs
Unbalanced phono (RCA) sockets (for stereo music sources). The left and right channels are combined,
resulting in a single mono signal that can be directed to one or two the audio outputs.
17. LINE/MIC/PHANTOM Switches
Use these switches to set what type of audio source is connected to each MIC/LINE input: a microphone
without phantom power (MIC), a microphone with +18~21V of phantom power (PH), or a line-level
device (LINE).
Note: Most dynamic microphones do not require phantom power, while most condenser microphones
do. Consult your microphones documentation to find out whether it requires phantom power.
