AKG C 420 User Instructions page 15

To connect to a balanced (XLR) input, use a
standard XLR cable.
To connect to an unbalanced input (mono jack),
use a cable with a female XLR connector and
TS jack plug (see fig. 1 below):
1. On the XLR connector, use a wire bridge to
connect pin 1 to pin 3 and the cable shield.
2. Connect the inside wire of the cable to pin 2 on
the XLR connector and the tip contact of the
jack plug.
Fig. 1: Connecting cable for unbalanced micro-
phone inputs.
2 Interfacing
2.7 Connecting
Cables
15