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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, which assures that your receiv-
er or amplifier will see a safe operating load when playing mul-
tiple speaker pairs simultaneously. Since most receivers and
amplifiers are not rated for use below a 4-ohm load, you must
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 that 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 pairs 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.