Clarion APX640.2, APX320.2, DPX1001.1, APX640.4 Precise Frequency Selector, Detent Chart

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Owner’s Manual

The Input Connections are gold-plated RCA Jacks. The Gain Controls provide a wide adjustment range to accommodate output levels from any source unit brand.

Precise Frequency Selector

The filter frequency markings on the front panel of the amplifier are for reference purposes. If you would like to select the filter frequency with a higher level of pre- cision, consult the chart in Figure 3 on this page. This chart gives you a more accu- rate frequency for each of the forty-one detented positions of the frequency selection control.

•Gain Controls with Selectable Input Voltage There are 2 settings for the "Gain" that must be adjusted in order to maximize the power output of the amplifier. The first step is to select the proper input voltage and the second step is to adjust the Gain dial.

•Input Voltage Selector

A wide range of signal input voltages can be accom- modated by the APX320.2, APX640.2, APX640.4 and DPX1001.1 input section (200mV - 8V). This wide range is split up into three ranges, Figure 2, accessible via switches located in the "Gain" of the amplifier. The "0.2V-0.6V" position on the switch selects an input sensitivity range between 200mV and 600mV, the "0.6V-2V" position on the switch selects an input sensitivity range between 600mV and 2V and the "2V-8V" position on the switch selects an input sensitivity range between 2V and 8V. This means that the "Gain" rotary control will operate within that voltage window. If you are using an aftermarket source unit with RCA outputs, make sure you select the proper voltage selection range. For example, if the RCA voltage of the aftermarket head unit is rated at 4 volts, set the switch at "2V-8V".

Figure 3 - Detent Chart

CONNECTIONS

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