Alto AMX-100FX User Manual page 17

5.1 SOME FINAL TIPS ON WIRING CONFIGURATION
You can connect unbalanced equipment to balanced inputs and outputs. Simply follow these schematics.
Ring=Right Signal
Tip
Sleeve
Ring
Strain Clamp
Tip=Left Signal
Sleeve=Ground/Screen
Use for Headphone, Stereo Return
1/4" Stereo (TRS) Jack Plug
Tip
Sleeve
Tip=Signal
Strain Clamp
Sleeve=Ground/Screen
Use for Mono Line In, Mono 1/4"Jack Plugs
1/4" Mono (TS) Jack Plug
2 2
1 1
2=Hot(+) 2=Hot(+)
1=Ground/Screen 1=Ground/Screen
3 3
3=Cold(-) 3=Cold(-)
Use for Balanced Mic Inputs Use for Main output
(For unbalanced use, connect pin 1 to 3) (For unbalanced use, leave pin 3 unconnected)
3-pin XLR Male Plug 3-pin XLR Line Socket
(seen from soldering side) (seen from soldering side)
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