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Loop Out Connector
The Right and Left Loop Out jacks provide connections to route the same input signals from
your preamplifier or surround controller to an additional power amplifier. In most instances,
you won't use the loop out feature so you can skip this section.
What You’ll Need:
• One pair of shielded interconnect cables with RCA plugs
• An additional amplifier
Before Connecting
Leave the AC cord on the A 21 disconnected from the wall until you have made all of
the connections in the system to prevent any surprise burst of sound.
Make sure that your interconnect cables are long enough so they are not strained or
stretched once they are connected.
To Connect
Plug one end of the cable to the right channel Loop Out jack on the A 21.
Plug the other end of this cable to the right channel input jack on the other power amplifier.
Repeat steps 1 and 2 for the left channel.
RC
A
Plugs
Right
Left
CONNECTING THE A 21 LOOP OUT JACKS
TO ANOTHER POWER AMPLIFIER’S INPUTS
4
YOU SHOULD KNOW
These jacks eliminate the need for two “Y” connector cables to split the outputs from the
two source channels between your A 21 and another amplifier. The A 21 Loop Out Jacks
jacks provide the same signals that are received at either the balanced or the unbalanced
inputs. Refer to Loop Out Jacks in the Technically Speaking section for more information
about when to use the Loop Out Jacks.
3
COMPONENTS
1
2
4
POWER AMP
Right
Left
INPUTS
2
1
3&4