Phoenix Audio Technologies DUET VCA - Manual (Page 15)

Connecting External Speakers:
The Duet is equipped with a 3.5mm stereo External Speaker / Headphone jack. Connecting your
loudspeakers (or headphones) to the Duet will disable the Duet’s internal speaker. Your computer’s
audio (music, VoIP communications, etc) will be passed through to the external speakers.
You can connect your VC system directly to the external speaker and avoid running a wire from the
3.5mm jack to your speakers. If you do so, you still have to provide the Duet with the speakers’
input signal through the RCA jack. You can do this by splitting the speakers’ line and wiring one end
to the Duet. In this case, please use the dummy plug provided with the Duet to disable the internal
speaker. Otherwise the Duet’s echo canceling software will not perform properly. Please refer to
the diagram in the next page.
Note: While the Duet’s internal speaker is disabled when using the 3.5mm stereo connection, the
Duet’s internal microphone is still fully functional.
- 15 – Phoenix Audio Technologies www.phnxaudio.com