Clarion APA4203 Operation & Installation Manual page 4

Clarion
APA4203/APA4I62
DESCRIPTION
The Clarion APA4203 (or APA4162) 4-channel car audio amplifier is an
ideal choice for creating a variety of multi-channel sound systems. Both
models features built-in system design flexibility that allows you to create a
2-, 3-, or 4-channel amplifier with a flip of a switch. Or you can configure
the front (CHI/2) or rear (CH3/4) amplifier sections for mixed-mode
operation to drive a set of satellite speakers and a subwoofer.
Figure 1. Clarion APA4203 4-channel car audio amplifier.
The built-in 12 dB-per-octave electronic crossovers let you tailor the sound
of front and rear channels. Other amplifiers may offer a single filter, but
this unit comes with two independent filters with adjustable crossover
frequencies for high-pass or low-pass filtering. And you don't need to add
external crossovers and cables, resulting in a cost-effective, efficient way
to implement your design ideas.
Either amplifier uses a regulated MOSFET power supply for superior
control of output wattage, regardless of input voltage or musical energy
content. MOSFETs are chosen for their inherent characteristics to provide
superior accuracy, stability, and control. A toroid-coil transformer yields
maximum power transfer with minimum heat loss. Careful attention to
circuit design keeps AM RFI at low levels, so you won't hear unwanted
4
♦
Description