Concert 88x Quick Start

Single System Setup

In order for your wireless system to work correctly, both the receiver and transmitter must be set to the same channel. 

1. Physically place the CR88x receiver where it will be used, and extend the antennas vertically. The general rule of thumb is to maintain “line of sight” between the receiver and transmitter so that the person using or wearing the transmitter can see the receiver.
2. With the CR88x powered off, connect the included power adapter. Turn the CR88x on momentarily to confirm that the unit is receiving power. You’ll see the LED display light up. Then turn the CR88x power off.

3. With your amplifier or mixer off and volume control all the way down, connect the CR88x receiver output jack to the mic or line level input of a mixer or amplifier using the balanced XLR output or unbalanced 1/4" line level output. Turn the Level knob on the CR88x completely counterclockwise, then turn its power on.

4. With the transmitter powered off, install two fresh AA batteries into the CB88 beltpack or CH88 handheld transmitter. Leave the battery compartment open. 

5. Turn on the power to the transmitter by pressing and holding Power switch. The indicator LED will light green.

6. Press the SCAN button for more than 2 seconds (the display will start to flash quickly) on the front of the CR88x receiver to scan for an available channel. Once the optimal channel is selected the receiver will enter IR Set mode. The display will flash slowly in IR Set mode. 
   
   If you want to set a transmitter to the receiver’s currently selected channel, press and hold the SCAN button for more than 10 seconds (until the display flashes slowly) to enter IR Set mode directly.
   

7. Position the transmitter about 6"–12" (15cm–30cm) from the front of the CR88x with the transmitter's IR window facing the IR transmitter on the front panel of the CR88x receiver.

8. When the transmission is complete, the CR88x will receive RF signal and the tone key from the transmitter. The READY indicator will light on the front panel of the CR88x receiver. 

9. Turn on your connected amplifier or mixer, but keep the volume all the way down. Set the Volume knob on the CR88x fully clockwise (to its “10” setting). This is unity gain. 

10. Speak or sing into the microphone, or if you are using the transmitter with a connected instrument, play the instrument at normal performance level. Slowly raise the volume of your amplifier or mixer until the desired level is reached. 
    
    If you find the system has noticeable dropouts, reduced overall working range, or unexpected noise bursts, change the operating channel of the system using the steps above. 

Multiple System Setup

When using multiple systems, each system must be set to a different operating channel. Transmitter and receiver pairs must be on the same channel plan in order to work together.

Follow the steps above to adjust each receiver and transmitter. When setting up an additional transmitter, be sure to close all other transmitter battery covers to ensure the IR lens is covered.