●Fit the phono shorting plugs supplied with the Stereo Power Amplifier to the unused phono input or inputs.

You can bi-wire in bridge mode by using the other pair of red terminals to connect separately to the loudspeaker treble unit.

To bi-amp to two A500 Loudspeakers

A500 Loudspeaker

A500 Loudspeaker

557 Stereo Power Amplifier

557 Stereo Power Amplifier

Extremely high sound quality can be achieved using two separate 557 Power Amplifiers, one to drive each loudspeaker. The two channels in each amplifier are used to drive the LF and HF units in each loudspeaker.

●Switch the BRIDGE MODE on both amplifiers to the OFF position.

●Connect the left audio output from the preamplifier to both inputs on one amplifier.

●Connect the right audio output from the preamplifier to both inputs on the other amplifier.

●If necessary, remove the links bridging the LF and HF terminals on the back of each loudspeaker.

●Connect the red and black terminals from the LF and HF units on one loudspeaker to the red and black terminals on each channel of one amplifier.

●Likewise, connect the LF and HF units from the other loudspeaker to the other amplifier.

Amplifier Power Stereo the up Setting

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