REDBACK
®
C 8867A & C 8868 16 Channel UHF Wireless Mic System
REDBACK
®
C 8884 2 Channel UHF Wireless Mic System
Page 3
RECEIVER INSTALLATION:
We recommend you avoid using more than one system in the same area as this will cause interference. Should
you require more than one system in an installation use a multi-channel Redback UHF microphone system.
Two outputs are provided. Dual 3-pin balanced XLRs which allow each channel (A & B) to be fed into an audio
mixer or individual amplifiers. (see Figure 1.)
Alternatively a 6.35mm TRS socket provides a mixed output of channels A and B, for feeding into an amplifier
Line/Aux or Mic input jack socket. Do not use the both XLR and 6.35mm TRS audio outputs at the same time!
This may cause signal loss or increased noise.
Connect the a.c. adaptor, turn the rocker switch to the on position and the LED Screen should illuminate.
Switch on the transmitters (see below for transmitter information). Ensure the transmitter is at least one metre
from the receiver.
Check for sound by moving the transmitter around the area where you wish to use the system, to look for dead
spots. If you find any dead spot, change the receiver position. Use the knobs on the front panel to adjust the
volume.
HANDHELD TRANSMITTER INSTALLATION:
Insert 2 x 1.5V AA size dry or rechargeable batteries. Note that good quality dry cells will have a longer usage life
than rechargeable batteries.
Note: Always use good quality batteries to avoid damage resulting from a defective leaking battery.
Switch the POWER switch to ‘ON’, and if the battery has sufficient power, the LED flashes once. If the LED stays
on or twinkles, it indicates that the battery has insufficient power and should be changed. If the status LED fails to
flash entirely, the battery is either dead or the polarity is incorrect. Replace the battery.
The microphone is designed so that the LED light remains unlit so that it will not consume power thereby
extending the battery life.
Set the levels on your audio mixer or amplifier as appropriate.
GENERAL OPERATING POINTS:
This system uses multilevel high frequency and mid frequency narrowband filters to counteract signals that may
cause interference.
It also employs audio compressing – expanding technology which can lower noise, increase the dynamic range,
and resist echo.
The receiver has a multilevel high frequency enlarger to enhance its sensitivity. The chipset is advanced and
reproduces audio with a good tone.
With the different outputs on the rear of the unit, it can be connected to a karaoke system. The frequency
response is tailored for vocals, with brighter mid-range and bass roll-off.
Uniform cardioid pickup pattern from the microphone transmitters which minimises background noise. It is
suitable for small and larger stages, ballrooms, auditoriums, classrooms.
Pneumatic shock-mount system cuts down handling noise. Mics also have a built-in spherical wind and pop
protector.