HP PC - Manual (Page 36)

30 Getting Started Guide
2 or 2.1 home stereo installation
The following diagram shows a typical 2 or 2.1 speaker installation that uses
passive stereo speakers and that plugs into a home stereo standard left and right
input.
This is only a suggested configuration. Your system may be different.
PC to 2.1 multichannel audio system connection
OUT
IN
A
B
C
D E
A PC back-panel
connectors (3, 6, or
sound card)
B Y adapter cables
C Receiver/amplifier
D Subwoofer
E Front speakers
(left and right)