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Installation Considerations
SPS-4 Power Handling
The SPS-4 is designed for use with a receiver or amplifier hav-
ing a maximum power output of 100 watts per channel at 8
ohms. Damage caused by the use of a higher-power receiver
or amplifier will void the warranty. Niles speaker selectors
with higher power handling capabilities are available.
Consult your Niles dealer, or receiver/amplifier manufacturer,
if you are uncertain about the power rating of your receiver
or amplifier.
Amplifier Impedance Load
As more pairs of speakers are parallel connected to a receiver
or amplifier, the overall system impedance becomes lower.
For example, if two pairs of 8-ohm speakers are connected
in parallel, the impedance will be 4 ohms; two pairs of
4-ohm speakers in parallel become 2 ohms, and so on.
Most receivers or amplifiers are not rated for use below a 4
ohm load. Most manufacturers do not
recommend connect-
ing more than two pairs of speakers without using some
form of impedance correction.
The SPS-4 includes impedance correction circuitry which pro-
tects your receiver or amplifier from low impedance loads.
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PEAKER
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ELECTION
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YSTEM
TOOLS
REQUIRED
• Wire Stripper