Rockford Fosgate 50.1 manual USING THE 50.2 BALANCED LINE INPUTS, Connecting the BLT

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USING THE 50.2 BALANCED LINE INPUTS

USING THE 50.2 BALANCED LINE INPUTS

The Balanced Line Inputs can be utilized with the optional Balanced Line Transmitter. Unlike standard RCA cables that use two wires to carry the audio signal and ground, balanced lines use three. In a balanced line, the output signal and its inverted replica travel down a pair of wires where the ground connects via the shield. As the amplifier receives the signals, it cancels out whatever signals are common to both wires. The use of balanced lines helps in preventing radiated noise pickup in the signal cables and has been proven effective in studio installation where long cable runs and magnetic fields make maintaining signal integrity difficult.

Connecting the BLT

 

 

 

 

 

 

 

 

®

 

 

®

 

 

 

 

 

 

 

 

BALANCED LINE TRANSMITTER

 

 

 

 

 

 

–18V

+18V

 

 

 

 

 

 

 

 

 

– L. SIG

 

– R. SIG

 

 

 

 

 

 

 

 

+ L. SIG

 

+ R. SIG

 

 

 

 

 

 

 

 

 

 

 

BALANCED LINE

LED

 

INPUT

 

 

 

 

 

 

 

 

OUTPUT

L

R

 

 

 

 

 

 

SHIELD

 

 

 

 

 

L

 

L

R

 

 

R

 

 

 

 

 

 

(Mono)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Speaker

Gain

Bass

 

 

Balanced

Gain

Speaker

 

 

 

+ L –

Phase

EQ

L

R

Input

 

– R

+

 

 

 

 

0 – 180°

Balanced

Pass Thru Pass Thru

 

EZ Bridged 180°- 0°

 

 

 

 

 

 

Unbalanced

 

 

 

 

 

 

Signal Input Switch to Balanced for Balanced Line Input

 

 

 

Gain for Left and Right channels set to minimum

 

 

 

 

 

CAUTION!! You must turn the gain controls to minimum when using the Balanced Line Transmitter. If the input gains need to be adjusted, this can now be done in the Balanced Line Transmitter.

– 24 –

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Contents 50.1 powerpower new chrome heatsinkPRACTICE SAFE SOUND G E T T I N G S TA R T E D TABLE OF CONTENTSPunch Power PUNCH AMPLIFIER ACCESSORY PACKPunch Power INTRODUCTION TO 50 SERIESTECHNICAL DESIGN FEATURES Stereo Pass-Thru DSM Discrete Surface Mount TechnologyXCard Internal Crossover Balanced Line Inputs NOMAD NOn-MultiplyingAdvanced DecisionITS Increased Thermal Stability 50.2 DESIGN FEATURES M P L I F I E R 50.1 DESIGN FEATURES Page Tools Needed INSTALLATION CONSIDERATIONSPassenger Compartment Mounting BATTERY AND CHARGINGMOUNTING LOCATION S Trunk MountingWIRING THE SYSTEM USING PASSIVE CROSSOVERS Freq TABLE OF CROSSOVER COMPONENT VALUESSpeaker Impedance 6dB/Octave Low-PassLow-Pass USING THE XCARDCUSTOMIZING THE XCARD High-PassButterworth Alignment Q = XCARD RESISTOR CHARTButterworth Alignment Q = 1% resistors used with 0.047mF capacitors50.2 INSTALLATION 50.2 Power Connections Option #150.2 Power Connections Option #2 Right Phase Switch set to Stereo OperationStereo/Mono Operation Left Phase Switch set toRight Phase Switch set to Bridged OperationEZ-BridgedOperation Left Phase Switch set toUSING THE 50.2 SIGNAL SWITCHING NETWORK 50.2 bypasses the circuitry of XCard 1 and XCard Pass-Thru uses output from XCard 50.2 uses output from XCard50.2 bypasses the circuitry of XCard Pass-Thru bypasses XCard 1 and XCard 50.2 uses output from XCard 1 and XCardConnecting the BLT USING THE 50.2 BALANCED LINE INPUTSAC Voltmeter set to AC Volts Level Setting the BLTPerformance Characteristics Disconnect Speakers from the– 26 – 50.1 INSTALLATION50.1 Power Connections Option #1 50.1 Power Connections Option #2Phase Switch set to Mono OperationPhase Switch 50.1 #1/2 set to XCard 50.1 #1/#2 set to Full Range Phase Switch 50.1 #1 set toPhase Switch 50.1 #2 set to Stereo/Mono OperationBridged Mono Operation Phase Switch 50.1 #1 set toPhase Switch 50.1 #2 set to U S I N G T H E 50.1 SIGNAL S W I T C H I N G N E T W O R K“Audiophile Bypass” the LOUD Configure a 12dB per octave filter for theXover is set to 12dB Pass-Thru has Full Range output onlyConfigure a 24dB per octave filter for the • Xover is set to 24dBPass-Thru has Full Range output only SYSTEM DIAGRAMS 100 Watt System rated @ 4 ohmsTotal Power Delivery RMS 400 Watts 150 Watt System rated @ 4 ohmsTotal Power Delivery RMS Tweeters400 Watts 300 Watt System rated @ 4 ohmsTotal Power Delivery RMS TweetersMidrange 500 Watt System rated @ 4 ohmsTweeters 400 WattsROCKFORD FOSGATE ACCESSORIES NOISEBalanced Line Transmitter FG-BLT Energy Storage Capacitors XCard Crossoverspunch Remedy TROUBLESHOOTINGSymptom DiagnosisSpeaker Output Low SymptomDiagnosis RemedyLow or distorted output from the SymptomDiagnosis RemedyNoise Overview QUICK CHECK FOR TROUBLESHOOTING CAR AUDIO SYSTEMSAUTOSOUND 2000s PrefaceSummation Time for ProcessorsMusic DYNAMIC POWER MEASUREMENTSAbout the Dynamic Power Measurements What is an Amplifier?100Watts 200 Watts 50.2 SPECIFICATIONSSpecifications subject to change without notice 50Watts 90Watts 150Watts 300Watts 25Watts 50Watts100Watts 200Watts 400 Watts 50.1 SPECIFICATIONSSpecifications subject to change without notice 100Watts 200Watts 325Watts 650Watts 50WattsWhat is Not Covered LIMITED WARRANTY INFORMATIONLength of Warranty What is CoveredN F O R M A T I O N Habitáculo INTRODUCCIÓNUBICACIÓN DE LOS AMPLIFICADORES MaleteroOperación mono/estéreo ESPAÑOLMontage dans le coffre InstallationINTRODUCTION MONTAGEFRANÇAIS Opération stéréo/monoTri-modeInput Auf der Beifahrerseite EINLEITUNGEINBAUORT Im FahrzeugkofferraumDEUTSCH Linken Phasen Schalter auf 0 stellenStereo/Mono Betrieb Nel Bagagliaio InstallazioneINTRODUZIONE DOVE POSIZIONARLOITALIANO Stereo/Mono OperationFase sinistra dellinterruttore posizionata su MADE IN THE USA