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5.7 Stereo Speaker Kit
Note that the following applies only for systems with a stereo S/PDIF output.
The Stereo Speaker Kit provides an pair of floor-standing loudspeakers in addition to the built-in
DNAM. Using these speakers will enable stereo functionality in your system and thereby enhance
the sound experience.
To experience stereo sound, the stereo speakers have to be connected to the Digital Natural
Audio Module (DNAM) as well as confirming this under Stereo Settings in the main audio menu.
The stereo sound source may either be located at the far end, or locally as a sound source (CD,
DVD) connected to the codec audio AUX/VCR inputs. If using a local stereo sound source, you
also have to enable Stereo I/O mode (On) in the same audio menu, to be able to receive stereo
sound on your system, and to send stereo signals to the far end. See chapter 4.5.4 for more
information.
Check also that the full-range frequency audio coding AAC-LD is enabled (In Call Quality menu,
AAC-LD is checked, and AAC-LD 128 threshold is the same or lower than the call rate you are
planning to use). See chapter Audio Algorithm and AAC-LD 128kbps for more information.
An installation sheet is enclosed in the Stereo Loudspeaker Kit, which also describes
recommended physical speaker placement. Make sure the complete videoconferencing system is
powered down before connecting the Stereo Speaker Kit.
Note that if stereo speakers are enabled in the menu without having any stereo speakers
connected to the Digital NAM, or having other speakers than the TANDBERG stereo
speakers, it may cause the acoustic echo-canceller to malfunction.
Stereo Speaker Kit specification:
2-way Stereo Speaker system (dual speakers in low- and midrange)
Passive Crossover Filtering.
Frequency range 50Hz - 20kHz
2 x 130mm low- and midrange loudspeakers, 8 ohms nominal, high quality.
1 x 25mm dome tweeter, 6 ohms nominal, high quality
Long time max power 90 Watt on all loudspeakers
Enclosed aluminium speaker cabinet