CONNECTING A CROWN CONDENSER MIC (such as a CM-311AHS) TO A CLEAR-COM AB-100 ANNOUNCERS CONSOLE

Option 1: Using the existing 6-pin XLR headset connector in the AB-100

1. Remove the stereo phone plug connector from a pair of headphones, and unsolder the cable leads from the phone plug.

2. Solder a 2-conductor shielded mic cable (about 3 feet long) to a 3-pin female XLR connector. Pin 1: shield, pin 2: mic high, pin 3: mic low. Well call this the 3-foot mic cable.

3. Solder the 3-foot mic cable and the headphone to a 6-pin male XLR cable connector, such as Switchcraft A6M or Neutrik NC6MXS, according to the pinout table below.

4. Inside the AB-100 is an 8-pin connector that sets the functions of the female 6-pin XLR headset connector. Install a jumper between pins 7 and 8 on the 8-pin connector to enable +48V phantom for the microphone. See the schematic on page 29 of the AB-100 manual. Then make these connections:

6-pin XLR headset-connector pin no. Function AB-100 internal 8-pin connector pin number
1 Mic low 4
2 Mic high 3
3 Headphone common  
4 Left headphone  
5 Right headphone  
6 Mic shield 1

 

Option 2: Using a 3-pin XLR connector and headphone jack that you install in the AB-100

1. Install a 3-pin female chassis-mount XLR connector in the AB-100 in place of the factory-supplied 6-pin XLR headset connector on the back panel.

2. Install a 1/4 stereo phone jack in the AB-100 in the 1/4 hole next to the headset connector on the back panel.

3. Inside the AB-100 is an 8-pin connector that sets the function of the previous 6-pin headset connector. Install a jumper between pins 7 and 8 on the 8-pin connector to enable +48V phantom for the microphone. Then make these connections between the XLR connector you installed and the AB-100s 8-pin connector:

Female 3-pin XLR pin no. Function AB-100 internal 8-pin connector pin number
1 Mic shield 1
2 Mic high 3
3 Mic low 4

 

4. See the AB-100 schematic diagram on page 29 of the AB-100 operation manual. Connect the stereo phone jack to the 3-pin block as shown in the schematic.

5. Plug a mic cable between the Crown microphone and the AB-100 3-pin mic input connector that you installed. Plug headphones into the headphone jack that you installed.

 

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