This control allows you to match the input level of the amplifier to the output level of your head unit. Matching
the input can be accomplished in three simple steps:
1. Set the volume of GAIN on the amplifier to Min (completely counter clock wise).
2. Turn on the head unit and adjust volume to 2/3 maximum, and set the BASS and TREBLE to zero.
3. Adjust the GAIN control clockwise until the sound
just begins
to distort, then back off slightly to cut
distortion and operate at optimum gain.
Remember, the
GAIN control is not a volume control
. Ignoring the three steps above may leave you with
damaged speaker and/or a damaged amplifier.
NOTE: The XAX-5670FD is a 5-channel amplifier that can accept up to three separate sets of
signal imputs. When setting the individual GAIN levels, it is recommended to start first with CH1/
CH2 GAIN, then CH3/CH4 GAIN and followed lastly by the SUB GAIN (depending on the number of
input signals available).
USER ADJUSTABLE CONTROLS
Input GAIN Adjustment
BASS EQ Adjustment
Fig.5 GAIN Control
GAIN
MIN
MAX
Input Sensitivity Control
This special feature is designed to provide you more powerful sound quality, and it allows you to boost the
real Bass EQ up +18dB. The level of boost can be set to either 0 (no boost), +12dB or +18dB. Keep in mind
that more is not always better! Setting the control to the max (18dB) can stress the amplifier and the speakers
which may result in damage to your system.
NOTE: The BASS EQ will only work with the SUB Channel on the XAX-5670FD
Fig.6 Bass EQ Control