Operation; 2/4 Channel Switch - Rockford Fosgate Punch P500X4D Installation & Operation Manual

Operation

Adjusting Gain
1. Turn amplifier gains to minimum (counter-clockwise).
2. Turn the source unit volume up to 7/8 maximum (or when distortion
is just inaudible).
3. Slowly increase amplifier gain control until adequate volume is
achieved.
NOTE: Best signal to noise and dynamic range are realized with gain set to
minimum. For a more in depth setting procedure, contact Rockford Tech-
nical Support.
Adjusting Crossover Frequency
Do the following individually for each
channel.
Placing the crossover switch in the HP
position sets the amplifier to the High Pass mode,
enabling frequencies above the cut-off point to pass,
adjustable between 50-500Hz.
Placing the crossover switch in the AP position sets the amplifier to the All
Pass mode, preventing any crossover adjustment, allowing all frequencies
to pass.
Placing the crossover switch in the LP position sets the amplifier to the
Low Pass mode, enabling frequencies below the cut-off point to pass,
adjustable between 50-500Hz.
Turn the crossover adjustment knob all the way down. With the system
playing, turn the crossover adjustment knob up slowly until the desired
crossover point is achieved.

2/4 Channel Switch

Setting this switch to the 2CH. position, switches the in-
puts to a 2-channel mode, allowing connection to only
the front inputs with a 4-channel output.
Output controls function the same as if the amplifier was
in 4-channel mode.
All "ACTIVE" inputs must have RCA jacks connected.
Switch in 2CH. position,"ACTIVE" - Front channel inputs only.
Switch in 4CH. position,"ACTIVE" - All Front and Rear channel inputs.
NOTE: When connecting to the 4-Channel inputs, be sure to route both
front and rear RCA cables tightly together.
10
Avoid setting amplifier gain high as noise and
distortion will greatly increase.
illus.-3.1
Punch EQ
This works along with the crossover switch on the amplifier. When set to
Low-Pass (LP) operation, this is a variable Bass Boost. Set this to your
personal preference while listening to the system.
illus.-3.2
illus.-4.1
Over excursion and subsequent damage may
occur at high levels of boost.
illus.-5.1