Rockford Fosgate PUNCH 4020 DSM Manual de usuario

PUNCH 4020 DSM4-CHANNEL AMPLIFIER®®INSTALLATION & OPERATION

– 7 – 6. RCA Input Jacks – The industry standard RCA jack provides aneasy connection for signal level input. They are gold-plated toresist the signal

INSTALLATION CONSIDERATIONS– 8 –This section focuses on some of the vehicle considerations forinstalling your new Punch amplifier. Checking your batt

MOUNTING LOCATIONThe mounting location and position of your amplifier will have a greateffect on its ability to dissipate the heat generated under nor

Amplifiers will put an increased load on the vehicle's battery andcharging system. We recommend checking your alternator andbattery condition to

– 11 –3. Prepare a length of cable to be used for the ground connection.Strip 5/8" of insulation from the end of the cable as describedabove and

– 12 –USING THE XCARDThe crossover functions are controlled through the use of anXCard and can be set for high-pass, low-pass or full rangeoperation.

4020 POWER CONNECTIONS– 13 –4510POWERConnect to remote turn-on lead of source unit.Connect to chassis ground of vehicle*Connect to B+ of battery with

SAMPLE WIRING DIAGRAMS– 14 –4-CHANNEL STEREO+ –2Ω MinimumHigh Frequency+ –2Ω MinimumLow Frequency+ –Front GainFrontRearRear Gain(Bridged Mono)+ L – +

– 15 –4-CHANNEL – STEREO FRONTMONO REAR4Ω MinimumLow Frequency+ –2Ω MinimumHigh Frequency+ –Front GainFrontRearRear Gain(Bridged Mono)+ L – + R –(Brid

– 16 –Rear XCard*Front XCard*• Signal input switch to 2 channel input.• Gain for Front and Rear operate independently.• Front is operating in mono.• R

Dear Customer,Congratulations on your purchase of the world's finest brand of car audioamplifiers. At Rockford Fosgate we are committed to music

– 17 –4-CHANNEL – STEREO/MONO FRONTSTEREO REAR+ –4Ω MinimumLow Frequency+ –2Ω MinimumHigh Frequency+ –2Ω MinimumHigh Frequency– +Front GainFrontRearRe

TROUBLESHOOTING– 18 –Amplifier does notturn on.(Power LED is off)Symptom Diagnosis RemedyVoltage applied to theREM terminal of theamplifier is not bet

Speaker OutputLow or DistortedReadjust input gains ofamplifier.Check system with knownworking source and repairor replace orignal source asneeded.Chec

– 20 –Engine Noise onthe Speaker Out-puts of the Ampli-fierDisconnect existing speak-ers and test with knownworking speakers. If enginenoise is gone,

– 21 –DYNAMIC POWER MEASUREMENTSAbout the Dynamic Power MeasurementsThe Audio Graph PowerCube is a test instrument used to measure theoutput of an amp

Information CubedThe data acquired in the testing procedure is then graphed in the formof a 3-dimensional cube. Hence the name PowerCube.The Phase Ang

– 23 –SPECIFICATIONSContinuous Power Rating (Competition Standard) - Measured at 13.8VRMS continuous power per channel, all channels 20 Wattsdriven in

WARRANTY INFORMATIONRockford Fosgate warrants all electronics to the original consumer/purchaser tobe free from defects in materials or workmanship fo

Rockford FosgateRockford Corporation546 South Rockford DriveTempe, Arizona 85281 U.S.A.In U.S.A., (602) 967-3565In Canada, call Korbon (905) 567-1929

GETTING STARTEDTABLE OF CONTENTSIntroduction ... 1Punch 4020 Amplif

– 1 –INTRODUCTIONThe Punch 4020 is a 4-channel amplifier which offers 20 Wattsper channel when driven into 4 Ohms. The amplifier utilizes a 2/4 input

– 2 –ROCKFORD FOSGATE ACCESSORIESThe following accessories were designed to enhance the perfor-mance of the Punch 4020 amplifier.Energy Storage Capac

– 3 –TECHNICAL DESIGN FEATURES◆ trans•anaThe trans•ana (TRANS conductance Advanced Non-multiplyingAmplifier) is a novel circuit that utilizes a short-

– 4 –to be obtained in amplifiers of desirable package size withoutresorting to “amplifier-on-a-chip” shortcuts. These advantagesare shown below in Fi

– 5 –◆ XCard (Internal Crossover)The Punch 4020 amplifier utilizes internal active crossovers. Thesecrossovers have many performance advantages such a

PUNCH 4020 DESIGN FEATURES 1. Cast Aluminum Heatsink – The cast aluminum heatsink of thePunch amplifier dissipates heat generated by the amplifier&apo