Rockford Fosgate 40X2 manual Transana, Technical Design Features

Page 5

TECHNICAL DESIGN FEATURES

◆TRANS•ANA

(TRANSconductance Active Nodal Amplifier)

The TRANS•ANA (TRANSconductance Active Nodal Amplifier) is a circuit that allows the audio signal to pass through the amplifier at low voltage. The signal is directly level-shifted to the fixed high voltage rails via a pair of driver transistors. Signal linearity is assured by an active node formed by the drive transistors at ultrasonic frequencies. This allows amplifier performance similar to trans•nova which is highly stable and linear while utilizing the advantages of a non- floating power supply.

THE RESULT: An extended frequency bandwidth accurately supplied to the output stages of the amplifier.

◆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.

– 2 –

Image 5

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 Trunk Mounting Mounting LocationPassenger Compartment Mounting Engine Compartment MountingR I N G T H E S Y S T E M Battery and ChargingPunch Punch 40x2, 60x2Page 3386 I N G T H E XcardActual formula is = R in kΩ For .047∝ f capResistors used with 0.047∝ F caps Frequency Resistor ChartButterworth Alignment Q = 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 Remedy TroubleshootingSymptom Speaker Output Symptom Diagnosis RemedyLow or Distorted Amplifier NoiseEngine Noise N a M I C P O W E R M E 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?PUNCH100x PUNCH200xPUNCH60x PUNCH40xAtcatcatcagu R R a N T Y I N F O R M a T I O N Page Montaje en el Compartimento de Pasajeros Montaje en el MalateroInstalacion Terminal B+Terminal REM Terminal GNDFuncionamiento Estereo/Mono No llevar a masa ningun cable de altavozMontage dans lhabitacle InstallationMontage dans le coffre Opération stéréo/mono tri mode Auf der Beifahrerseite Im FahrzeugkofferraumEinbau + AnschlussREM Anschluss GND AnschlussNel Bagagliaio InstallazioneNellabitacolo Terminale B+ cavo positivoTerminale REM Consenso di accensione Terminale GND cavo negativoT E S T E S Rockford Fosgate Made in the USA