Meridian Audio 557 - Manual (Page 16)

Setting up the Stereo Power Amplifier
12
To wire to an A500 Loudspeaker in
bridge mode
557 Stereo Power Amplifier
A500 Loudspeaker
ON
Input
You can use the 557 as a mono power amplifier, to obtain more
than three times the power output, by wiring it in bridge mode.
● Switch the BRIDGE MODE switch to the ON position.
● Connect the audio input to only the LEFT INPUT or LEFT
BALANCED INPUT.
● Connect the loudspeaker between the red LEFT and RIGHT
terminals, leaving the black terminals unconnected.
To bi-wire to A500 Loudspeakers
557 Stereo Power Amplifier
A500 Loudspeaker A500 Loudspeaker
● Set the BRIDGE MODE switch to the OFF position.
● If necessary, remove the links bridging the LF and HF
terminals on the back of each loudspeaker.
● Connect the LF red and black terminals from each
loudspeaker to the red and black terminals on the appropriate
channel of the Stereo Power Amplifier, using twin loudspeaker
cable.
● Connect the HF red and black terminals from each
loudspeaker to the other pair of red and black terminals on
the appropriate channel of the Stereo Power Amplifier.