Belt-pack Earpiece Level Control
The EPC20 belt-pack enables the signal level in a 2000 ohm or 500 ohm earpiece to be controlled by a passive potentiometer, and provides a connection between an earpiece jack plug and an XLR3 cable plug.

The EPC20 belt-pack enables the signal level in a 2000 ohm or 500 ohm earpiece to be controlled by a passive potentiometer, and provides a connection between an earpiece jack plug and an XLR3 cable plug.