Manual
860A Dual-Mono Power Amplifier 
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8 
Rear Panel Layout 
Figure 1: Rear panel of Moon 860A Dual-Mono Amplifier 
The rear panel will look similar to Figure 1 (above).  
Each channel has one balanced (differential) input  
on an XLR connector and one unbalanced (single-
ended) input on a RCA connector. There is no 
switch to toggle from balanced mode to single-
ended mode. You may operate the amplifier in 
either mode, but only one mode at one time for 
each channel. When you’re using the balanced XLR 
inputs,  you must first remove the factory 
installed “dummy” XLR jumpers (see figure 2 
below) from the back panel XLR connectors and 
store them in a safe place. These jumpers are 
required ONLY when using the single-ended RCA 
inputs. If you decide to switch to single-ended input 
mode, you must reinstall the XLR jumpers (between 
pins 1 and 3) exactly as show below: 
Figure 2: XLR connector without and with jumper accessory 
There are two pairs of heavy duty gold-plated 
speaker binding posts for each channel labelled 
“Speaker Output 1”. 
The upper mid-section has an RS-232 input on a 
DB9 connector. To the right of this connector are 
two 12 Volt triggers, each on a 1/8” mini-jack; one 
input and one output, the latter for use in the event 
that wish you to “daisy chain” a second power 
amplifier on the same trigger circuit. The lower mid-
section has from left to right; the “AC Fuse” socket 
cover; the power “main switch”; and the “AC Input” 
IEC receptacle for the power cord. 










