B&K 7260 series - Manual (Page 8)

Here is a typical preamplifier to amplifier setup:
Outputs
Five way binding posts are provided. One pair for each channel. They are designed to
accept a banana-type plug or spade lug connector (shown below) and are color coded for
easy identification. The positive (+) post should always be connected to the speakers (+)
jack. The negative (-) post should always be connected to the speakers (-) jack.
Spade connector Banana jack
Here is a typical amplifier output setup:
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P/N 13007 Rev.0004