Yamaha PS-55 Owner's Manual download pdf (Page 8)

4 STEREO/PARALLEL/BRIDGE switch

Use this switch to select the operating mode.

• STEREO mode

Channels A and B operate independently (as with a conven-

tional stereo ampliﬁer). The Channel A input goes to the Chan-

nel A output jacks, and the Channel B input goes to the

Channel B output jacks.

•PARALLEL mode

The Channel A input signal is output through both the Channel

A and Channel B output jacks. The Channel B input jacks do

not function. Channel A and B volumes can be independently

adjusted.

• BRIDGE mode

The Channel A input signal is output from the BRIDGE output

jacks. To adjust the volume, you must use the Channel A vol-

ume control knob.

5 SPEAKER jacks

Neutrik NL4FC Speakon output connectors,

5-way binding post output jacks,

Phone output jacks

For minimum speaker impedenance values, see page 9.

6 GND terminal

This is a screw-type ground terminal. If you are having a prob-

lem with hum or noise, use this terminal to connect to ground

or to connect to the chassis of the mixer, preamp, or other

device in your system.

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Yamaha PS-55 Owner's Manual Page 8