8
FINISHING THE INSTALLATION (CONTINUED)
CHECKING LOUDSPEAKER PHASE
Speaker wire has two conductors. On both your loudspeaker and amplifi er, one
conductor is attached to the negative (–) terminals, while the other is attached to
the positive (+) terminals. Usually, the wire is marked for your convenience, but the
marking can be done in the following different ways:
■ Stripe on one wire
■ Ribbed area you can feel on one conductor
■ Different colors of metal wire on each conductor
■ Fabric strand or string wound into one of the conductors
Of course, there are some wires that appear completely identical. So be careful, or
you might make a connection mistake. If you do, one loudspeaker will be playing
“out-of-phase” with the other loudspeaker. A pair of out-of-phase loudspeakers
Pro2870 LCRPro2870 LCR
Surround Receiver
Straps Removed
Figure 5. Bi-Wire connection
Figure 6. Bi-Amp connection
Pro2870 LCRPro2870 LCR
Straps Removed
Si275 Amp1
Si275 Amp2
Si275 Amp