A-FILTER-R Installation
The A-FILTER-R for Balanced Microphones improves RF immunity for microphones, specifically when connected to digital wireless transmitters like the A10-TX.
The instructions below describe how to mount the A-FILTER-R for Balanced Microphones into a female right angle XLR connector.
Before starting assembly, please make note of the following:
- The A-FILTER-R should be placed as close to the microphone as possible. The benefit of the RF filter is significantly reduced if placed downstream of the microphone connector.
- For use with Cable Techniques CT-LPXLR-3F female right angle XLR connector only.
- The A-FILTER-R does not degrade the audio signal, affect phantom voltage, or draw any power in any way.
Supplies Required
- The A-FILTER-R, available from both Sound Devices and Audio Limited.
- The circuit board was designed to be used with the Cable Techniques CT-LPXLR-3F connector only.
- Solder, soldering iron, and allen wrench for cable assembly.
Note: Installing the A-FILTER-R assumes knowledge of proper cable soldering and termination.
Step 1
Disconnect the right angle XLR female connector and cleanly desolder the existing cable from the insert. If this is a new cable assembly, this step is not necessary.
Step 2
Take note of the polarity labeled on the circuit board.
Step 3
Connect the individual conductors of the cable to the appropriate +, – and GND terminals on the circuit board.
Solder the A-FILTER-R circuit board to the connector insert. Make certain to align the connector pins with the labeled solder pads on the board.
Step 4
Place the connector in the housing.
Step 5
Reattach end cap. Replace allen screws and turn to secure. Installation is now complete.
Step 6
Test the cable for continuity and correct polarity.
