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Two-Way Speaker Selector Switch
The Two-Way Speaker Selector Switch is
designed with non-shorting contacts to
connect two pairs of stereo speaker systems.
The switch lets you select one or both
connected speaker systems, without
overloading the transistor output stages.
Caution:
This speaker selector switch is
limited to a maximum of 10 watts/channel,
continuous music power.
CONNECTIONS
You can connect the speaker selector switch
between an amplifier's speaker output ter-
minals and the speaker input terminals.
To connect speaker wire to a speaker selector
switch terminal, wrap the stripped end of the
wire around the terminal's screw stem (under
the washer).
Caution:
When using stranded wires, twist
them so all strands contact only the
appropriate ter- minals. If loose strands touch
nearby ter- minals, the system might not
operate properly.
Use a screwdriver to loosen and tighten the
four AMP and eight SPK A and SPK B
terminal screws.
Caution:
Be sure to follow proper polarity (– to
– and + to +) when making connections.
1. Connect the amplifier's left speaker output
terminals to the AMP L (left) negative (–) and
positive (+) terminals and tighten its screws.
2. Connect the amplifier's right speaker output
terminals to the AMP R (right) negative (–)
and positive (+) terminals and tighten its
screws.
3. Connect the first speaker system's left and
right negative (–) and positive (+) terminals to
the corresponding SPK A R and L terminals
on the speaker selector switch and tighten
its screws.
4. Connect the second speaker system's left
and right negative (–) and positive (+)
terminals to the corresponding SPK B R and
L terminals on the speaker selector switch
and tighten its screws.
IMPEDANCE CHART
Impedance is a measurement of the load
placed on your receiver / amplifier by the
speakers. The load placed on your receiver/
amplifier from the speaker selector switch will
vary depending on how many pairs of
speakers you turn on at one time, and on
which speakers you turn on. The chart below
shows the im- pedance for all possible
combinations of 8-ohm speakers.
SPEAKER SETS ON IMPEDANCE (Ω)
A
B
A+B
Note:
Impedance restriction for total speakers
is 4 ohm. Therefore, you should ensure your
system or amplifier will accept a 4 ohm load at
the speaker output.
8
8
4
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