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Rockford Fosgate 5.3x manual Using Passive Crossovers, mono loads

Models: 5.3x

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USING PASSIVE CROSSOVERS

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A passive crossover is a circuit that uses capacitors and/or coils and is placed on speaker leads between the amplifier and speaker. The crossover delegates a specific range of frequencies to the speaker for optimum driver performance. A crossover network can perform one of three functions: High-Pass (capacitors), Low-Pass (inductors or coils) and Bandpass (combination of capacitor and coil).

The most commonly used passive crossover networks are 6dB/octave systems. These are easy to construct and require one component per filter. Placing this filter in series with the circuit will reduce power to the speaker by 6dB/octave above or below the crossover point depending on whether it is a high-pass or low-pass filter. More complex systems such as 12dB/octave or 18dB/octave can cause impedance problems if not professionally designed.

Passive crossovers are directly dependent upon the speaker's imped- ance and component value for accuracy. When passive crossover components are used in multiple speaker systems, the crossover's effect on the overall impedance should be taken into consideration along with the speaker's impedance when determining amplifier loads. CAUTION: The Rockford Fosgate amplifiers are not recom- mended for impedance loads below 2Ω stereo and 4Ω bridged

(mono) loads.

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Rockford Fosgate 5.3x manual Using Passive Crossovers, mono loads

Contents

I n s t a l l a t i o n a n d O p e r a t i o n 390 Watt Amplifier5-channelw/crossovers PRACTICE SAFE SOUND TA B L E O F CO N T E N T S G E T T I N G S T A R T E DTRANS ANA ACCESSORY PACKTECHNICAL DESIGN FEATURES IN T R O D U C T I O NMOSFET Devices TOPAZ Tracking Operation Pre-AmplifierZoneDSM Discrete Surface Mount Technology NOMAD NOn-MultiplyingAdvanced DecisionXCard Crossover Signal Switching NetworkHigh Level Inputs adjustment 5.3X DE S I G N FE AT U R E Swarranty will8.Signal Input Switches 2.Power/Speaker Barrier Strip7.LED Power Indicator CONTROLS WILL VOID YOUR WARRANTYIN S TA L L AT I O N CO N S I D E R AT I O N S Passenger Compartment Mounting MOUNTING LOCATIONTrunk Mounting Engine Compartment MountingBATTERY AND CHARGING WI R I N G T H E SY S T E MPage USING PASSIVE CROSSOVERS mono loadsHertz TABLE OF CROSSOVER COMPONENT VALUESFreq 2 OHMSCUSTOMIZING THE XCARD Where R = ΩUS I N G T H E XCARD 3386Butterworth Alignment Q = RESISTOR CHARTButterworth Alignment Q = 1% resistors used with 0.047μF capsFront XCard = Full Range XCARD ACCESSFACTORY DEFAULTS Rear XCard = Full Range Subwoofer XCard = 80Hz LPConfiguration #3 USING THE SIGNAL SWITCHING NETWORKConfiguration #2 Front inputsFront inputs = Front, Rear & Subwoofer outputs Configuration #5Configuration #6 Configuration #4 Mono Sub InputFront inputs Configuration #1390 Watts Total Power Subwoofer L Mono inputsSubwoofer inputs Configuration #2Front inputs Configuration #3 DefaultSetting 390 Watts Total Power390 Watts Total Power Configuration #4 Mono Sub InputSubwoofer L Mono inputs Front inputsFront inputs Configuration #5390 Watts Total Power = Front & Rear outputs390 Watts Total Power Configuration #6 Front inputs = Front, RearSubwoofer outputs L- and R- Inputs are not used 5.3X INSTALLATIONHigh Level Input - “Single Ended” Type 100.7 High Level Input - “B.T.L.” TypeFactory Radio Power Connections 3-ChannelOperation390 Watts Total Power 3-ChannelMono Operation5-ChannelOperation Sub Gain Control operates independentlyStep #1 SYSTEM DIAGRAMS230 Watt System rated @ 4 ohms 4Ω WooferStep #2 230 Watt System rated @ 4 ohmsXCard 350 Watt System rated @ 4 ohmsStep #3 Rear410 Watt System rated @ 4 ohms Step #4Diagnosis SymptomTR O U B L E S H O O T I N G RemedyDiagnosis – 33 –Symptom RemedyRemedy SymptomDiagnosis Engine NoiseMusic About the Dynamic Power MeasurementsDY N A M I C PO W E R ME A S U R E M E N T S Listening to Loudspeakers - Not ResistorsWhat is an Amplifier? Information CubedChannels 5.3X SPECIFICATIONSFront/Rear ChannelPage What is Covered LIMITED WA R R A N T Y IN F O R M AT I O NLength of Warranty What is Not CoveredN F O R M A T I O N INTRODUCCIÓN Configuración n1 Entrada de Subwoofer en monoConfiguración n2 UTILIZACION DEL CIRCUITO DE CONMUTACION DE SEÑALConfiguración n5 Configuración n3Configuración n4 Entrada de Subwoofer en mono Configuración n6IN T R O D U C T I O N UTILISATION DU RÉSEAU DE COMMUTATION DU SIGNALConfiguration #2 Configuration #3 somme avant & arrièrearrière Configuration #5Vordere Eingänge BENUTZEN DES SIGNAL NETZWERKESEINLEITUNG Hintere EingängeBeispiel #5 Beispiel #3addiert Beispiel #6IMPIEGARE LA RETE DI SELEZIONE DEGLI INGRESSI Configurazione #2INTRODUZIONE Ingressi Subwoofer LMono = Uscite SubwooferConfigurazione #4 Configurazione #3Configurazione Ingressi anterioriMADE IN THE USA Rockford Fosgate