Setting up the multi channel power amplifier
14

To connect two 558s to a

seven-channel surround system

ON
OFF
2 x 558 Multi Channel Power Amplifiers
ONON
Centre
Main left
Main right
Rear left
Rear right
Main right
Centre
Rear
left
Rear
right
Side
left
Main left Side right
Side left
Side right
Two 558 Multi Channel Power Amplifiers can be used as the
basis of a superb seven-channel surround system, taking
advantage of bridged mode operation to give more than twice
the power output for the three front channels.
Switch channels 1/2 and 4/5 of the first 558 to bridged mode,
and use these for the main left and right loudspeakers.
Switch channels 1/2 of the second 558 to bridged mode, and
use these for the centre loudspeaker.
Use the remaining channels for the side and rear
loudspeakers, as shown in the diagram.