Rockford Fosgate 40X2 manual I N G T H E Xcard, 3386, Actual formula is, = R in kΩ For .047∝ f cap

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U S I N G T H E XCARD

The crossover functions are controlled through the use of an XCard and can be set for high-pass, low-pass or full range operation. The 100Hz XCard shipped with your amplifier is set for Full Range. Each crossover card has two faces: one face operates Full Range, the other has arrows to indicate the edge for selecting HP (high-pass) or LP (low- pass) operation. Orient the card with the desired operating edge, indicated by the arrow, toward the socket terminals inside the ampli- fier. Firmly, but carefully, plug the card into the socket.

High-Pass


➝LP				➝
➝LP			HP

Low-Pass


➝HP			LP➝

Full Range

FULL ↕

The crossover point can be altered by changing the resistor value. Use the following formula to select the appropriate resistor value to be placed on the XCard.

	3386	= R (in kΩ	) for .047∝ f cap
	fo	= R (in kΩ	) for .047∝ f cap
	fo
	7234 = R (in kΩ		) for .022∝ f cap
	fo

AO

DP

VE

AR

A N T C I E O

D N

	The actual formula is:
	R =	1	R1
	R =	2π foc

Where: R = Ω

fo = desired crossover frequency c = capacitor in farads

ex: .047 x 10-6for .047mf cap

Crossover Card

R2	Pass	R1
Low Pass
Full Range

FULL

R2

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Contents Channel Amplifiers Operation & Installation Practice Safe Sound T T I N G S T a R T E D B L E O F C O N T E N T ST R O D U C T I O N Punch Amplifier Accessory PackTransana Technical Design FeaturesDSM Discrete Surface Mount Technology Mosfet Devices Design Features Front XCard S TA L L AT I O N CO N S I D E R AT I O N S Engine Compartment Mounting Mounting LocationTrunk Mounting Passenger Compartment MountingR I N G T H E S Y S T E M Battery and ChargingPunch Punch 40x2, 60x2Page = R in kΩ For .047∝ f cap I N G T H E Xcard3386 Actual formula isResistor Chart Butterworth Alignment Q =Resistors used with 0.047∝ F caps Frequency Power Connections InstallationStereo Operation Mono Operation Stereo/Mono Operation SY S T E M DI a G R a M S Way System Front PCH-14X Way System w/Fadable Rear StageRO C K F O R D FO S G AT E AC C E S S O R I E S Punch Status Display FG-PSDEnergy Storage Capacitors Punch Link FG-LINK XCard Crossovers Troubleshooting SymptomRemedy Amplifier Noise Symptom Diagnosis RemedySpeaker Output Low or DistortedEngine Noise Listening to Loudspeakers Not Resistors About the Dynamic Power MeasurementsN a M I C P O W E R M E a S U R E M E N T S MusicInformation Cubed What is an Amplifier?PUNCH40x PUNCH200xPUNCH100x PUNCH60xAtcatcatcagu R R a N T Y I N F O R M a T I O N Page Terminal B+ Montaje en el MalateroMontaje en el Compartimento de Pasajeros InstalacionNo llevar a masa ningun cable de altavoz Terminal GNDTerminal REM Funcionamiento Estereo/MonoInstallation Montage dans le coffreMontage dans lhabitacle Opération stéréo/mono tri mode + Anschluss Im FahrzeugkofferraumAuf der Beifahrerseite EinbauREM Anschluss GND AnschlussTerminale B+ cavo positivo InstallazioneNel Bagagliaio NellabitacoloTerminale REM Consenso di accensione Terminale GND cavo negativoT E S T E S Rockford Fosgate Made in the USA