C411
III
 MANUALC411
III
 MANUAL22 23
dEScRIPTION INTERFAcINg
2.4  Features
•  Rugged vibration pickup for instrument miking on stage.
•  Frequency response tailored to acoustic guitar, banjo, zither, 
and bowed string instrument miking.
•  Complete with adhesive compound for mounting the pickup 
directly on the instrument.
2.5  Brief Description
The C411
III
 is a vibration pickup that converts the vibrations of an 
instrument’s soundboard into an electrical signal.
The C411
III
 has been specically designed for direct attachment to 
an acoustic guitar, banjo, zither, or bowed string instrument and 
ensures absolutely accurate, coloration-free reproduction.
The supplied adhesive compound for attaching the pickup will 
leave wooden, plastic, and metal surfaces untainted.
2.6  Versions
The C 411
III
 is available in two versions:
•  For 9 to 52 V universal phantom power. 
(3-m) permanently attached connecting cable with phantom 
power adapter with integrated 3-pin XLR connector.
•  For use with the B23 L battery power supply, MPA V L phan-
tom power adapter, or AKG Wireless bodypack transmitters. 
5-ft. 
(1.5-m) permanently attached connecting cable with 3-pin 
mini XLR connector
Features
Brief 
Description
C411
III
 P
C411
III
 L
3  Interfacing
The C411
III
 pickup is a condenser transducer and therefore needs 
a power supply.
Using any power supply other than those recommended by AKG 
may damage your pickup and will void the warranty.
3.1  C411
III
 PP
3.1.1  Connecting to Balanced Inputs
2
3
1
2
3
1
PhantomMPA
MPA
3
2
1
1
Figure 1: Connecting to balanced inputs
1)  Connect the phantom power adapter (1) on the pickup cable 
to a balanced XLR microphone input with phantom power.
2)  Switch the phantom power on. (Refer to the instruction manu-
al of the unit to which you connected your pickup.)
3)  If your mixer provides no phantom power: Connect the phan-
tom power adapter (1) to an optional AKG phantom power 
supply (2) and use an XLR cable (3) to connect the phantom 
power supply to the desired balanced input.
C411
III
 PP
Connecting 
to balanced 
inputs