Epson ActionPC 2000 Read This First Manual page 16

Both speakers are connected to one speaker cable. Connect this
cable to the appropriate port on your computer's sound card,
as shown below.
OUT
IN
MIC
g a m e
or joystick
port
If you want to connect headphones to your sound card, connect
them to the OUT connector. (Headphones mute the sound from
your speakers.) You can connect the line-out connector of a
radio, CD player, stereo, or other device to the
To connect a microphone, use the MC connector. (The
microphone must have 600 Ohm impedance or less.) Use the
MIDI game port on the sound card to connect a game cable or
joystick with a 15-pin, D-sub connector.
Caution
Do not press either speaker's power button or change the
setting of the Amp switch while they are connected to the
computer. Also do not plug or unplug the speaker cable
from the sound card when the speakers are operating or
play the speakers at an excessively high volume.
IN
connector.
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