Rockford Fosgate 5.3x manual Mosfet Devices

Page 5

◆TOPAZ (Tracking Operation Pre-Amplifier Zone)

The TOPAZ (Tracking Operation Pre-Amplifier Zone) circuitry solves ground loop noise problems common to automotive amplifier design. This innovative new development allows vastly improved isolation of the input signal grounds from the power supply ground of the amplifier. This is accomplished by allowing the source unit to control the potential “environment” of the entire input structure or “zone” of the amplifier. This process improves the noise rejection of the ampli- fier by 30-40dB – an astounding 30-100 times better than amplifiers without TOPAZ.

THE RESULT: Elimination of troublesome ground loop noise between source and amplifier.

◆MOSFET Devices

Rockford Fosgate is one of the few manufacturers in the sound community to utilize MOSFET devices in both the power supply and the output stages. MOSFET (Metal Oxide Semiconductor Field Effect Transistor) devices offer several important inherent advantages over the 30 year old technology of bi-polar design. These advantages include: thermal stability, switching speed, ultra low output imped- ance and wider bandwidth linearity. In addition, MOSFETs operate very similarly to vacuum tubes in which they are more linear than bi- polar transistors. However, MOSFETs can deliver the midrange clarity without the limitations of transient response and high frequency phase shifting normally associated with tube operation.

THE RESULT: Operational characteristics similar to vacuum tubes without the performance limitations of tube design.

– 2 –

Image 5

Contents Channel w/crossovers Installation a n d O p e r a t i o nPractice Safe Sound T T I N G S T a R T E D TA B L E O F CO N T E N T ST R O D U C T I O N Accessory PackTechnical Design Features Mosfet Devices DSM Discrete Surface Mount Technology High Level Inputs 3X DE S I G N FE AT U R E S LED Power Indicator Power/Speaker Barrier StripSignal Input Switches Dual Extruded HeatsinksS TA L L AT I O N CO N S I D E R AT I O N S Trunk Mounting Mounting LocationWI R I N G T H E SY S T E M Battery and ChargingCut Using Passive Crossovers Ohms Table of Crossover Component ValuesCustomizing the Xcard US I N G T H E XcardButterworth Alignment Q = Resistor ChartXcard Access Configuration #2 Using the Signal Switching NetworkConfiguration #3 Front inputsFront inputs = Front, Rear Subwoofer outputs Configuration #5Configuration #6 Subwoofer L Mono inputs Configuration #1 Front inputsConfiguration #2 Front inputs Factory Subwoofer L Mono inputs Configuration #4 Mono Sub Input Front inputsConfiguration #5 Front inputs Watts Total Power High Level Input Single Ended Type 3X InstallationFactory Radio 100.7 High Level Input B.T.L. TypeChannel Operation Power ConnectionsSub Gain Control operates independently Channel Mono OperationStep #1 System DiagramsStep #2 Step #3 Front XCard Step #4TR O U B L E S H O O T I N G Symptom Diagnosis RemedySpeaker Output Engine noise with DY N a M I C PO W E R ME a S U R E M E N T S About the Dynamic Power MeasurementsMusic Listening to Loudspeakers Not ResistorsInformation Cubed What is an Amplifier?Front/Rear Sub Channels 3X SpecificationsATC Limited WA R R a N T Y in F O R M AT I O N Length of WarrantyPage Utilizacion DEL Circuito DE Conmutacion DE Señal IntroducciónConfiguración n5 Configuración n3Configuración n6 PosterioresUtilisation DU Réseau DE Commutation DU Signal Arrière Somme avant & arrièreEinleitung Benutzen DES Signal NetzwerkesBeispiel #5 Beispiel #3Beispiel #6 Vordere Eingänge = Vordere & HintereImpiegare LA Rete DI Selezione Degli Ingressi Configurazione #2Introduzione Configurazione #4 Ingresso sub mono ConfigurazioneIngressi anteriore Posteriore sommatiMade in the USA