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9
The four jumpers that are circled control the impedance of the speakers as follows:
1)
Output 1 (left speaker)
2)
Output 1 (right speaker)
3)
Output 2 (left speaker)
4)
Output 2 (right speaker)
5)
Output 3 (left speaker-VSS4)
6)
Output 3 (right speaker- VSS4)
7)
Output 4 (left speaker-VSS4)
8)
Output 4 (right speaker- VSS4)
Each jumper has four positions labeled X, X2, X4, and X8. The VSS2 and VSS4 are shipped from the factory
with the jumpers in the X2 position. This ensures that the minimum load with all zones turned on will be
4-Ohms (assuming all the speakers connected are 8-Ohm speakers).
If your speakers are 4-Ohm, you should reset the jumpers on all of the speakers to the X4 position. This will
ensure that the minimum load to your amplifier will be 4-Ohms with all of the speakers connected.
In either situation, if one pair of speakers is set to “B” source while all others are set to the “A” source, you
will have to increase your level setting on the switchers volume control for the “B” source as the impedance
will now be increased to 16-Ohms which may results in a slight loss of volume. It is important that the
minimum impedance is maintained at a safe level.
