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Operation; Punch Bass (700x Only); Adjusting Gain; Adjusting Crossover Frequency - Rockford Fosgate Punch 300X Installation And Operation Manual

4-channel amplifiers.
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O
PERATION
PUNCH BASS (Model 700X Only)
1. Turn clockwise to add Punch to amplifier bass frequencies.
CAUTION: Overexcursion may occur at maximum boost, which may cause
!
damage to the woofer.

ADJUSTING GAIN

Do the following individually for each channel.
To adjust the gain setting, turn the amplifier gains all the way down. Turn the source unit volume up
until distortion is audible and then turn it down a bit until the distortion is inaudible. This will be
about two thirds all the way up on most source units. Next, turn the amplifier gain setting until once
again distortion is audible and then back it down until the distortion is inaudible. Rockford Fosgate
source units do not distort, so the volume can be used at maximum setting.
NOTE: For a more in depth setting procedure, contact Rockford Technical Support.

ADJUSTING CROSSOVER FREQUENCY

Models 300X & 500X
Placing the switch in the HP position sets the amplifier to the 120Hz High Pass mode, allowing only
frequencies above the cut-off point to pass.
Placing the switch in the AP position sets the amplifier to the All Pass mode, allowing all
frequencies to pass.
Placing the switch in the LP position sets the amplifier to the 80Hz Low Pass mode, allowing only
frequencies below the cut-off point to pass.
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Punch 700xPunch 500x

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