Clarion APX290M Operation/Installation Manual, Description, Input Connections And Audio Controls

APX280M APX490M manual.qxd 2/6/2008 11:38 AM Page 3

Operation/Installation Manual

DESCRIPTION

The APX290M and APX490M use an unregulated MOSFET power supply for superior sound and output wattage. In addition, a toroid-coil is used to transfer power with minimal performance loss due to heat. To avoid unwanted noise, a double-sided conformal printed circuit board with strategically placed compo- nents keeps AM RFI subdued.

All of the connections and controls for the APX290M and APX490M are conve- niently located at the ends of the amplifier and labeled appropriately. To ensure the best possible electrical connections, the power, speaker, and RCA inputs are gold-plated. An additional benefit of the APX490M is the ability to create a 2, 3, or 4 channel amplified system with a flip of a switch (see Application sec- tion). In the event of component failure or a short circuit, the APX290M and APX490M incorporate safe guards and outboard ATC fuses to prevent damage to the amplifier.

INPUT CONNECTIONS AND AUDIO CONTROLS

The front panel of the APX490M and APX290M contain both connections for RCA and speaker level inputs, along with the audio controls as shown below.

Fig. 1

APX490M

English

2 3 4 5 6 7 8 9 16

111 12 13 14 15 10

1.	CH1/CH2 High Input	9.	CH 3/4 Mode Switch
2.	CH 1/2 RCA Input	10.	CH 3/4 High Input
3.	CH 3/4 RCA Input	11.	CH 1/2 Frequency Control
4.	CH1/CH2 Gain Control	12.	CH 1/2 Crossover Mode Switch
5.	CH 3/4 Gain Control	13.	CH 3/4 Frequency Control
6.	Bass Boost	14.	Frequency Range Multiplier
7.	Source Select	15.	CH 3/4 Crossover Mode Switch
8.	CH 1/2 Mode Switch	16.	Power Light Indicator

2