User guide

Z4
II
& Z8
II
:
Installation and User Guide 3
22/10/04 V9
1 Safety Notes
•
Do not expose the unit to water or moisture.
•
Do not expose the unit to naked flames.
•
Do not block or restrict any air vent.
•
Do not operate the unit in ambient temperatures above 35
o
C.
•
Do not perform any internal adjustments unless you are qualified to do so and fully
understand the hazards associated with mains operated equipment.
•
The unit has no user serviceable parts. Refer servicing to qualified service personnel.
•
If the moulded plug is cut off the lead for any reason, the discarded plug is a potential
hazard and should be disposed of in a responsible manner.
For more detailed information refer to the rear of the manual.
2 General
The Cloud Z4 and Z8 are versatile, multi-source, multi-zone mixers capable of providing total
sound system control for a complex venue. The units have applications where two
microphones, up to 5 paging microphones and up to six line level music signals are required
to feed up to eight separate areas in any combination. Optional accessories extend the
flexibility of the unit: dedicated paging microphones with pre-announcement chime are
available (see section 11), the music level and source can be controlled remotely on any
zone and active modules can be added to provide special facilities on a zone by zone basis.
The front panel controls are reduced to a minimum to reduce operational confusion and if
preferred, the unit can be positioned in a protected area with just the remote music level and
source controls positioned in the most appropriate location. All pre-set controls are mounted
on the rear panel. A remote music mute facility is provided which may be used to satisfy the
requirements of the Local Fire Officer.
3 Schematic Diagram
4 Installation
The Cloud Z4 and Z8 venue mixers are suitable for mounting in a standard 19” equipment
rack and occupy 3 units of rack space. The units are 160mm deep but a depth of 235mm
should be allowed to clear the connectors. Avoid positioning the units in close proximity to
magnetic fields or equipment operating at a high temperature.
5 Music Inputs
Both the Z4 and Z8 operate in mono, however, all the line level music inputs are in stereo;
these are internally mixed to form a mono signal. The six line inputs are suitable for most
music sources such as CD players, tape players and receivers etc. All the stereo inputs are
unbalanced and use RCA type phono sockets. The input impedance is 47k
Ω
.