Owner`s manual

control until the system gets loud but before the point of distortion. It is very important

SETTING THE GAIN

The gain control has been included to allow adjustment to properly

To properly set the gain, start by setting the gain to its minimum position and turn the

main radio volume up to 3/4 of maximum volume control. Then slowly raise the amp gain

sensitive and the music will play louder. Ideally, to properly level match the system the goal

By rotating the control in the clockwise direction, the amplifier's input will become more

is to achieve maximum output from the amplifier without distortion at about 3/4 of the

radio volume control.

when making these adjustments that you do not over drive the speakers that may be

have another person assist you by adjusting the gain control while you listen for distortion.

permanently damaged. The gain control should be adjusted very slowly. It may help to

match the signal output of the radio. This is one of the most

misunderstood adjustments. This is not a volume control and you

will not get more power out of the amplifier in the maximum position!

It may seem to deliver more output, but actually the system is only

Playing louder faster as you turn the volume control on the radio.

USING SUBSONIC FILTER AND PHASE CONTROL

Subsonic

Using the Subsonic Filter.

frequencies below that point. Generally, human ears cannot hear

low frequencies below 20 Hz.

displacement of the subwoofer cone. You would want to set the

subwoofers because they can generate over-could damage the

reproduction of inaudible low frequencies on the amplifier which

20~50Hz subsonic filter. This filter avoids the a variable

Models HA1000,HA700M, and HA1000M are equipped with

Mono subwoofer amplifier models, HA700M & HA1000M are

Phase

180

the phase shift of a subwoofer for a smooth blending, without

canceling the bass fromother speakers or subwoofer(s).

subwoofer(s) from0 to 180 degrees. This control helps to align

equipped with acontinuously adjustable phase lag control on

Using the Phase Control.

Fine tune the amplifier's input sensitivity.

frequency point where you want the filter not to produce