Laney LH50 Operating Instructions Manual page 19

16 Ohm Socket
L Z B 1 2 3 4
FX Controller
Output Input
Input
L Z B 1 2 3 4
8 Ohm
Socket
Input
System using
1* LH50 Head
1* GS412IA
Link
System using
1* LH50 Head
1* GS212IE
Set to Mono 16 Ohm
1* GS412IA
& FX Controller