Crown VFX2 Instruction Manual page 12

2.4 INSTALLATION
2.4.1 Cabling
Refer to Figure 2-2,
2.4.2 Input Connections
a. Balanced Input
RING
FIGURE 2-3
PHONE PLUG, %", 3-CONDUCTOR
b. Unbalanced Input
c. Unity Gain Unbalanced Input
BARREL uP
FIGURE 2-4
PHONE PLUG, '4", 2-CONDUCTOR