Rockford Fosgate 250.1 manual Bridged Operation, EZ-BridgedOperation, Left Phase Switch set to

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Bridged Operation

Bridged Operation

RCA Input

		Unbal.			R
			L (Mono)		R
Speaker		0° -180°	Bal.			Bal.	E Z - 1 8 0 ° - 0 °	Speaker
+	L –					Bal.	Bridged	– R	+
+	L –		Pass			Input	Bridged	– R	+
			Pass			Input
		Gain	Thru	L	R		Gain

+						–
Speaker						Speaker
Terminal	+				–	Terminal

4Ω min.

•RCA inputs are connected to both left and right channels

•Signal Input Switch selected to Unbalanced for RCA input

•Left Phase Switch set to 0°

•Right Phase Switch set to 180°

• Inverting the right signal will allow the bridged woofer to operate correctly

•Gain for left and right channels set equally to balance the subwoofer

•Impedance for bridged channel should be 4Ω minimum

•XCard is in High-Pass,Low-Pass or Full Range position

EZ-Bridged Operation	Mono
	Input

	Unbal.			R
		L (Mono)		R
Speaker	0° -180°	Bal.			Bal.	E Z - 1 8 0 ° - 0 °	Speaker
+ L –					Bal.	Bridged	– R +
+ L –		Pass			Input	Bridged	– R +
		Pass			Input
	Gain	Thru	L	R		Gain

+						–
Speaker						Speaker
Terminal	+				–	Terminal

4Ω min.

•RCA input is connected to L (Mono) input

•Signal Input Switch to Unbalanced for RCA input

•Left Phase Switch at 0°

•Right Phase Switch set to E-Z Bridge for the following to occur:

L (Mono) RCA input to drive both the left and right channels Left Gain will control both the left and right channels

Right Phase will be inverted 180° which will allow the bridged woofer to operate correctly

•Impedance for bridged channel should be 4Ω minimum

•XCard is in the High-Pass,Low-Pass or Full Range position

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N S T A L L A T I O N

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Contents power powerpower 250.1PRACTICE SAFE SOUND G E T T I N G S T A R T E D TA B L E O F CO N T E N T SPunch Power INTRODUCTION TO 250 SERIESPunch Power DIABLO Dynamically Invariant A-BLinear Operation TECHNICAL DESIGN FEATURESTOPAZ Tracking Operation Pre-AmplifierZone trans nova circuitryStereo Pass-Thru DSM Discrete Surface Mount TechnologyXCard Internal Crossover Balanced Line Inputs NOMAD NOn-MultiplyingAdvanced DecisionITS Increased Thermal Stability 250.2 DE S I G N FE AT U R E S PLIFIER 250.1 DE S I G N FE AT U R E S 1AMPLIFIER Tools Needed INSTALLATION CONSIDERATIONSTrunk Mounting BATTERY AND CHARGINGPassenger Compartment Mounting Engine Compartment MountingW I R I N G T H E S Y S T E M USING PASSIVE CROSSOVERS 6 dB/Octave High-Pass TABLE OF CROSSOVER COMPONENT VALUES6 dB/Octave Low-Pass FreqCU S T O M I Z I N G T H E XCA R D US I N G T H E XCARDHigh-Pass Low-PassButterworth Alignment Q = XCA R D RESISTOR CHART1% resistors used with 0.047∝ F capacitors Butterworth Alignment Q =250.2 INSTALLATION 250.2 Power Connections Option #1250.2 Power Connections Option #2 Stereo/Mono Operation Stereo OperationLeft Phase Switch set to Right Phase Switch set toEZ-BridgedOperation Bridged OperationLeft Phase Switch set to Right Phase Switch set toPage XCard not required Pass-Thru uses output from XCard 250.2 uses output from XCardPage Configurea24dBperoctave and“AudiophileBypass”the Configurea12dBperfilterfor Pass-ThruConnecting the BLT USING THE 250.2 BALANCED LINE INPUTS8.0 VAC Level Setting the BLTPerformance Characteristics Disconnect Speakers from the250.1 INSTALLATION 250.1 Power Connections Option #1250.1 Power Connections Option #2 Mono Operation Phase Switch set tominimum orFullRange AmplifiersPowerStereo/Mono Operation Impedanceforeachstereochannelshouldbe2Ω minimumImpedanceforbridgedchannelshouldbe4Ω minimum minimum Bridged Mono OperationImpedanceforbridgedchannelshouldbe4Ω Pass,-High -LoworPass RangeFullU S I N G T H E 250.1 SIGNAL S W I T C H I N G N E T W O R K“Audiophile Bypass” the XCard Configure a 12dB per octave filter for theLOUD TUNEConfigure a 24dB per octave filter for the SY S T E M DI A G R A M S 250 Watt System rated @ 4 ohmsTotal Power Delivery RMS Total Power Delivery RMS 500 Watt System rated @ 4 ohmsTotal Power Delivery RMS 750 Watt System rated @ 4 ohmsTweeters 450 WattsTotal Power Delivery RMS 1000 Watt System rated @ 4 ohmsTweeters WattsROCKFORD FOSGATE ACCESSORIES NOISEBalanced Line Transmitter FG-BLT Punch Status Display connected to one Punch Status Display FG-PSDChannel A monitors left channel Channel B monitors right channelEnergy Storage Capacitors punchXCard Crossovers 1.0capTR O U B L E S H O O T I N G SymptomDiagnosis RemedyDiagnosis SymptomRemedy Speaker Output LowDiagnosis SymptomRemedy Low or distorted output fromAUTOSOUND 2000s QUICK CHECK FOR TROUBLESHOOTING CAR AUDIO SYSTEMSPreface Noise OverviewSummation Time for ProcessorsAbout the Dynamic Power Measurements DY N A M I C PO W E R ME A S U R E M E N T SWhat is an Amplifier? MusicSpecifications subject to change without notice 250.2 SP E C I F I C AT I O N S180Watts 310Watts 620Watts 125Watts 225Watts 450 WattsSpecifications subject to change without notice 250.1 SP E C I F I C AT I O N S420Watts 710Watts 1420 Watts 250Watts 500 Watts 1000 WattsLength of Warranty LIMITED WA R R A N T Y IN F O R M AT I O NWhat is Covered What is Not CoveredN F O R M A T I O N UBICACIÓN DE LOS AMPLIFICADORES INTRODUCCIÓNMaletero HabitáculoOperación mono/estéreo INTRODUCTION InstallationMONTAGE Montage dans le coffrePage EINBAUORT EINLEITUNGDEUTSCH Im FahrzeugkofferraumStereo/Mono Betrieb Linken Phasen Schalter auf 0 stellenINTRODUZIONE InstallazioneDOVE POSIZIONARLO ITALIANOFase sinistra dellinterruttore posizionata su Stereo/Mono OperationMADE IN THE USA