B&K ST1400M - Manual (Page 9)

Page 7
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 red (+) post should always be connected to the speakers (+)
jack. The black (-) post should always be connected to the speakers (-) jack.
Spade connector Banana jack
Here is a typical amplifier setup:
The ST1400M series II amplifier has two sets of binding posts on it. They are
paralleled inside the amplifier.
The amplifier comes standard with a right and left speaker output. The left output is
used for normal operation, but you can use the right output to connect to another left
channel speaker.