Rockford Fosgate 4-CHANNEL AMPLIFIER Note The factory default is Full Range, Frequency Settings

Active

Crossover

Mode

Selection

Crossover

Frequency

Settings

The Punch 4-Channel amplifiers feature selectable elec- tronic crossovers. Selection is made by positioning of a removable module card. These modules control the output channels and can be configured in a High Pass, Low Pass or Full Range (factory default) position. The 4- Channel amplifiers are shipped with 100Hz 12dB per octave Butterworth aligned crossover modules. Addi- tional crossover frequency modules are available from your Authorized Rockford Fosgate Dealer.

➞LP	➞
	HP

Note: The factory default is Full Range.

To change the crossover mode, remove the crossover module from the housing. Rotate the module to the desired setting and gently push the module back into the amplifier housing as shown on the diagram on the back of the amplifier.

	NOTE:	All of the crossover cards in this amplifier have been
		factory installed in the FULL RANGE configuration.
REAR		They can be reconfigured to produce a 100Hz LOW
SPEAKERS		PASS or HIGH PASS according to the following
		instructions.
	CROSSOVER CARD INSTALLATION:
		Use a small screwdriver to pry out the plastic hole
		covers. Orient the card in the FULL RANGE, LOW
		PASS, or HIGH PASS configuration as shown below,
		then insert the card fully into the connector.
	FULL RANGE		LOW PASS			HIGH PASS
			HP	LP	➝
		FULL ➝	➝
						➝LP	HP➝

FRONT

SPEAKERS

FRONT+REAR

SUM OUTPUT

FRONT+REAR SUM OUTPUT:

The center pair of RCA jacks provide a FRONT+REAR summed output signal, with a crossover that operates independently of the FRONT SPEAKER and REAR SPEAKER crossovers.

Example: The 4040 DSM is shipped with three 100 Hz modules. With the modules in the Full Range setting, the amplifier will pass through all 20Hz -20kHz frequencies.

In the Low Pass setting, only those frequencies below 100 Hz will pass through the amplifier.

In the High Pass setting, only those above 100 Hz will pass through the amplifier.

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