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Rockford Fosgate 400x4 operation manual I N T R O D U C T I O N

Models: 400x4

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I N T R O D U C T I O N

I N T R O D U C T I O N

The Punch 400x4 (pronounced “x4” not “by 4”) is a 4-channel amplifier which can deliver 400 watts RMS. This amplifier utilizes a 2/4-channel input switch to eliminate the need for signal splitters. Four internal XCard crossovers allow the ampli- fier to be configured for use with many popular system designs without the added cost of external processors. The Punch 400x4 is a powerful 4-channel amplifier with integrated features which are offered at a competitive price.

We strongly recommend you have your Authorized Rockford Fosgate Dealer install your new Punch amplifier. If you do choose to install it yourself, please be sure to read the entire manual before beginning.

PU N C H 4-CHANNEL AM P L I F I E R AC C E S S O R Y PA C K

The accessory pack shipped with the Punch 4-channel amplifier includes the mounting hardware necessary to secure the amp to the vehicle as well as attach the end caps.

Installation & Operation Manual Punch Verification Certificate

(10) Allen Head Screws for speaker and power connectors

(4) Mounting Screws for end caps

(4) Mounting Screws for amplifier

(1) Allen Wrench 7/64"

(1) Allen Wrench 3/32"

(1) AGU In-line Fuseholder

(1) AGU 50 Amp Fuse

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Rockford Fosgate 400x4 operation manual I N T R O D U C T I O N

Contents

t r a n s a n a 4-CHANNEL AMPLIFIER INSTALLATION & OPERATIONMANUAL Page PRACTICE SAFE SOUND G E T T I N G S T A R T E D TA B L E O F C O N T E N T SI N T R O D U C T I O N Punch Link FG-LINK Energy Storage CapacitorXCard RO C K F O R D FO S G AT E AC C E S S O R I E STOPAZ Tracking Operation Pre-AmplifierZone TECHNICAL DESIGN FEATURESTRANS ANA TRANSconductance Active Nodal Amplifier DSM Discrete Surface Mount Technology XCard Internal CrossoverNOMAD NOn-MultiplyingAdvanced Decision MOSFET DevicesRTP Real Time Protection Pass-ThruOutput DESIGN FEATURES 4AMPLIFIER IN 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 MountingW I R I N G T H E S Y S T E M BATTERY AND CHARGINGPage Page U S I N G T H E XCARD Front XCard set to High-Passor Low-Pass XCARD CONFIGURATIONSRear XCard 1 set to High-Passor Low-Pass Rear XCard 2 set to Full RangeRear XCard 2 inserted as Low-Pass Rear XCard 1 inserted as High-PassPass-ThruXCard set to High-Passor Low-Pass Configure a 12dB/octave filter for the Pass-ThruPass-Thru is a non-fadingsummed output USING THE SIGNAL INPUT SWITCH2-ChannelInput Pass-Thru is a non-fadingsummed output Signal Input Switch set to 4-channelinput4-ChannelInput Power Connections BA S I C CO N N E C T I O N SKeep grounds as short as possible Less than2-ChannelStereo Operation Phase Switch set to2-ChannelMono Operation Phase Switch set to3-ChannelOperation 4-ChannelStereo Operation Phase Switch set to4-ChannelStereo/Single Mono Operation Phase Switch set to4-ChannelStereo/Dual Mono Operation Phase Switch set to200 Watt 3-WaySystem SY S T E M DI A G R A M S400 Watt 4-WaySystem 600 Watt 4-WaySystem 800 Watt 4-WaySystem Symptom T R O U B L E S H O O T I N GRemedy DiagnosisRemedy SymptomDiagnosis Speaker OutputRemedy SymptomDiagnosis Engine NoiseAbout the Dynamic Power Measurements D Y N A M I C P O W E R M E A S U R E M E N T SMusic Listening to Loudspeakers - Not ResistorsInformation Cubed What is an Amplifier?260 Watts 400X4 S P E C I F I C A T I O N S130 Watts 60 WattsReturn Authorization Number W A R R A N T Y I N F O R M A T I O NShip to Tempe, AZ 85281 U.S.APage Page Rockford Corporation 546 South Rockford Drive Rockford FosgateTempe, Arizona 85281 U.S.A In U.S.A In Europe, Fax 49 In Japan, Fax 81