Clarion APX480M Power System Amplifier

Clarion APX480M Power System Amplifier

The RCA connections are gold plated for optimum performance and low sig- nal loss. The RCA connectors are labeled CH 1 (front left), CH 2 (front right), CH 3 (rear left), and CH 4 (rear right). In applications where RCA signals are not present, the speaker level output from the head unit can be used. (Use one or the other input, not both.)

•Gain Controls - Separate CH 1/2 and CH 3/4 gain controls allow you to set the nominal operating level of the amplifier. The amplifier'sinput range, 250mV to 2.5V for RCA inputs and 500mV to 5V for speaker level inputs, can accommodate input levels from virtually any head unit.

e Bass Extender - The amplifier features a "high-Q" (i.e. narrow frequency band) Bass Boost circuit. It acts much like an equalizer with an adjustable gain from 0 to +18dB fixed at 45Hz. Use this feature to tune low-frequency audio response to compensate for a less than ideal subwoofer enclosure design. The added boost produces rich, full bass tones that are normally difficult to reproduce in the car audio environment NOTE: If bass boost is undesired, set Bass Extender to OdS.

•Source Select

2 CH BASS: Uses CH 1/2 inputs and has output from all 4 channels with Bass Extender.

2 CH: Uses CH 1/2 inputs and has output from all 4 channels. The Bass Extender will work only on CH 1/2 and have no effect on CH 3/4.

4 CH: Uses all 4 channel inputs and has output from all 4 channels. The Bass Extender will work only on CH 1/2 and have no effect on CH 3/4.

•Output Mode Selector Switch: (CH 1/2 and CH 3/4)

STEREO: Full left and right stereo operation.

CH 1Mono / CH 2 Mono: Single channel input for bridged operation. This is especially useful in high-powered systems. (Uses CH 2 and CH 4 inputs.) CH 1/2 Mono / CH 3/4 Mono: Allows for a stereo input to be summed into a mono output.

•CH 1/2 FREQ / CH 3/4 FREQ .. The CH 1/2-crossover frequencies are adjustable from 55Hz to 550Hz. While CH 3/4-crossover frequencies are adjustable from 55Hz to 5500Hz (via the Frequency Range Multiplier) for a wider range of crossover points. Use this feature along with your speaker manufacturer'srecommended crossover frequencies to quickly design a more advanced system. NOTE: If either of the Crossover Mode Switches is set to OFF, varying the frequency control will have no effect.

•CH 1/2 Filter I CH 3/4 Filter - A filter is activated by sliding the CH 1/2 and CH 3/4 filter switch to either HP or LP. CH 1/2 is fully adjustable from

55-550Hz (via CH 1/2 Freq) and CH 3/4 is fully adjustable from 55-5500Hz (via CH 3/4 Frequency and Frequency Range Multiplier). Use this feature along with your speaker manufacture'srecommended crossover frequencies to design a more advanced system.