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Playing Two or More Speaker Pairs Simultaneously
1. Make sure the amplifier or receiver power is OFF and set
the volume to minimum.
2. On the right side of the HDL-6's front panel is a button
labeled PROTECTION. This button activates the HDL-6's
impedance correction circuitry. The circuitry assures that your
receiver or amplifier will see a safe operating load when play-
ing multiple speaker pairs simultaneously. Since most receivers
and amplifiers are not rated for use below a 4 ohm load, you
will need to activate the PROTECTION button whenever the
overall system impedance might fall below 4 ohms. Use the
following chart as a guide for setting the PROTECTION button.
3. Locate the ON/OFF buttons on the HDL-6 which corre-
spond to the speaker pairs you wish to play. Set them to the
ON position.
12
H
IGH
D
EFINITION
S
PEAKER
S
ELECTION
S
YSTEM
When playing the following speakers:
1 or 2 pair of 8-ohm speakers
3 or more pairs of 8-ohm speakers
1 pair of 4-ohm speakers
2 or more pairs of 4-ohm speakers
Any combination of 4 and 8 ohm speakers
The Protection button should be:
OFF
ON
OFF
ON
ON
Set the PROTECTION button to the correct position using the chart shown above.
"TECH TIP"
You will need to
activate the HDL-6's
PROTECTION button
whenever the overall
system impedance
might fall below
4 ohms.