E-Mu 404 Owner's Manual page 13

Connection Diagrams
Analog Inputs/Outputs & S/PDIF
Instrument
Mic / Hi-Z / Line
A
CD Player
Any Digital Audio Device with S/PDIF Out
The Mic/Hi-Z/Line Inputs accept any balanced or unbalanced instrument, line level signal or
microphone. The coaxial/optical S/PDIF inputs and outputs allow you to interface with
external digital audio equipment.
0404 USB 2.0 Owner's Manual
S/PDIF
B
In
Audio/Video Receiver
Any Digital Audio Device with S/PDIF In
Stereo
Headphones
Microphone
Headphone
Out
Volume
13