Boulder Amplifiers 865 manual Polarity, Connecting Your Loudspeakers

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POLARITY

Please note that the 865 Integrated Amplifier conforms to the standard of Pin 2 as the high or ”hot” for the balanced inputs.

The polarity of the 865 is such that a positive-going transition at Pin 2 will produce a positive-going transition at the ”+” loudspeaker terminal.

CONNECTING YOUR LOUDSPEAKERS

Do not use any wrenches on the loudspeaker binding posts. Tighten these connectors only by hand.

WARNING: The 865 is a high powered amplifier. When driven, there is a high voltage potential at the terminals.

Connections should only be made with the AC mains disconnected.

Select spade terminals which accept 6 mm or .250 inch diameter binding posts.

There is no provision for the use of banana plugs. These plugs have been proven to come loose over time which increases contact resistance and distortion. For the same reasons we also do NOT recommend the use of banana plugs at the loudspeaker end.

1-8

GETTING

STARTED

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Contents Page Boulder Integrated Amplifier Page Table of Contents Remote Control Recording Quick Start Getting StartedIntroduction Placement of the 865 Integrated Amplifier Connecting to the Mains Outlet Connecting a Balanced Analog Source PolarityConnecting AN Unbalanced Source Connecting the Auxiliary Outputs Getting Started Connecting Your Loudspeakers Setting the Boulderlink Switch Powering UP OperationInput Selections Volume Balance Mute Display Remote Control BatteriesVOLUME, Balance and Mute Source SelectionProgramming Input NamesProgramming Input Level Calibration Input Balance Calibration Theater Mode Start VolumeAuxiliary Outputs Mode Programming by the Display ButtonBoulderlink Speed Boulderlink IDRemote ID Reset to Factory Defaults Connecting Boulderlink BoulderlinkBoulder Link Setting Boulderlink Switches Setting Boulderlink ID NumbersPower UP VIA Boulderlink Boulder Link Boulderlink Messages Boulder Link Connecting a Recording Device RecordingAppendix Boulder 865 Integrated Amplifier Specifications Troubleshooting Symptom Cause Remedy Appendix