Fostex AR501 Owner's Manual page 20

< Reference dimensions >
< Cable >
Used to connect AR501 unbalanced output to other equipment
such as a DSLR camera and audio recorder and also to connect 2 x
AR501's in cascade.
For the convenience of handling, a curl cord is used.
[Connectors]: stereo min plug ø 3.5 mm.
[Length]: 20 cm when shrunk, 40 cm when fully expanded.
20