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Boulder 1160 - Polarity; Connecting Your Loudspeakers

Boulder 1160
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1-5
Getting Started
Getting Started
Polarity
Please note that the 1160 Stereo Power Amplier conforms to the AES
standard of pin 2 as the “high,” “positive,” or “hot” pin for the balanced
input.
The polarity of the 1160 Stereo Power Amplier is such that a positive-
going transition at pin 2 will produce a positive-going transition at the “+”
output terminal.
Connecting Your Loudspeakers
Do not use a wrench or any other type of tool on the output terminal
binding posts. Tighten these connectors by hand only.
WARNING: This is a high-powered amplier! There is high voltage
potential at the terminals when driven. Connections should only be made
with the AC mains disconnected!
Select speaker cable spade terminals that will accept .250-inch (6 mm)
diameter binding posts. Two sets of output connections are provided on the
1160 to enable easy bi-wiring. Because the binding posts are connected in
parallel for each channel, there is no advantage of one set over the other.
There is no provision for the use of banana plugs. Banana plugs are
proven to lose spring tension and come loose over time, increasing contact
resistance and distortion. We also do not recommend the use of banana
plugs at the speaker end for these reasons.

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