Functional Instructions; Features And Operational Controls - Hifonics ARX3003 Owner's Manual

Hybrid class a/b & d 3-channel amplifier

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FEATURES AND OPERATIONAL CONTROLS

The SUB IN RCA jacks must be connected with the RCA output jacks of the headunit.

Please check also the notes in section #8 below.

POWER/PROTECT

If the POWER LED lights up, the amplifier is ready for operation.

If the PROTECT LED lights up, a malfunction is indicated. Attend in this case the chapter TROUBLE SHOOTING.

The BASS LEVEL CONTROLLER port is for the enclosed bass remote controller in LP/BP mode. With this bass remote cont-

roller you are able to adjust the bass level e.g. from the driver's seat. Please connect only the enclosed bass remote controller

and cable.

The LEVEL SUB CHANNEL controller adjust the input sensitivity of the amplifier to align the audio signal of the head unit on

Channel 3 (Subwoofer Channel). The input sensitivity is adjustable from 6 Volts (MIN) and 0.2 Volts (MAX).

The BASS BOOST SUB CHANNEL controller adjust the bass boost enhancement continuously from 0dB to +18dB.

The SUBSONIC SUB CHANNEL controller cuts off the ultra-deep and low inaudible frequencies of the audio signal from the

subwoofer channel. Hence, the subwoofer is not mechanically and electrically overloaded. The cut-off frequency can can be

adjusted from 15 and 55 Hz, depending on the size of the subwoofer.

NOTE: If this controller is set higher than the LP controller no audio is hearable.

The LP SUB CHANNEL controller (low pass) adjusts the cut-off point of the frequency range of Channel 5 (Subwoofer Channel)

to above. The cut-off frequency is continuously adjustable from 35 Hz to 150 Hz.

With the INPUT MODE switch you can choose whether you want to drive the amp one pair of RCA cables (position 2CH) or

with two pairs of RCA cables (position 3CH). NOTE: If you want to use the AUTO TURN ON function the switch must be in 2CH

position.