Owner's Manual
4
Quick Start Guide
ACX-300.4
6. Protection LED - This LED will shine if there is a problem being
sensed by the unit. See troubleshooting section for best practice
to determine the cause.
7. Gain Control 1/2 - This control allows you to adjust the overall
output level for channels 1/2, with counterclockwise decreasing
and clockwise increasing. With the source unit set to 75%, adjust
this knob to the point where the Maximized light shines briey.
This will be your optimal gain setting.
In Stereo operation, connect one loudspeaker to each channel as
shown. The minimum impedance is 2 Ohms per channel.
In Bridged Mono operation, connect one loudspeaker to the
inner 2 wire connections labeled 1 and 4 on the included mating
speaker wire connector. The mono loudspeaker will receive the
power from each channel, and both channel inputs must be fed
an input signal. The minimum impedance is 4 Ohms.
8. High Pass Crossover Frequency 1/2 – Since component speakers
are designed to reproduce certain frequency ranges, a crossover
allows you to match the speaker to the appropriate frequency
range. Speaker manufacturers list a recommended crossover
frequency in the speaker specications so choosing the crossover
point they’ve noted will provide increased speaker reliability and
optimum sound quality. The ACX-4.300 amplier has selectable
12 dB/Octave Linkwitz-Riley crossover points at 80 Hz, 120 Hz,
and a “bypass” option. The amplier receives the frequency range
above the crossover point.
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