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Rockford Fosgate 125.2, Operation & Installation

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Operation & Installation

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Summary of Contents for 125.2

Page 1: ... c a r a u d i o fanatics for punch 2 Channel Amplifiers Operation Installation t r a n s a n a t r a n s a n a t r a n s a n a t r a n s a n a ...

Page 2: ...w system deserves nothing but the best To add the finishing touch to your new Rockford Fosgate image order your Rockford wearables which include everything from T shirts and jackets to hats and sunglasses To get a free brochure on Rockford Fosgate products and Rockford accessories in the U S call 602 967 3565 or FAX 602 967 8132 For all other countries call 001 602 967 3565 or FAX 001 602 967 8132...

Page 3: ...nclude recommendations for curing installation problems Sections marked INSTALLATION include slam dunk wiring connections I N S T A L L A T I O N TROUBLE S H O O T I N G Welcome to Rockford Fosgate This manual is designed to provide information for the owner salesperson and installer For those of you who want quick information on how to install this product please turn to the Installation Section ...

Page 4: ...logy improve amplifier efficiency The result of these components give the Punch amplifier awesome sound quality in a Bullet Proof package An explana tion of these technologies most of which are exclusively designed and patented by Rockford are described in the Technical Design Features 1 PUNCH AMPLIFIER ACCESSORY PACK The accessory pack shipped with the Punch 2 channel amplifiers includes the moun...

Page 5: ...algrounds 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 amplifier by 30 40dB an astounding 30 100 times better than amplifiers without TOPAZ THE RESULT Elimination of troublesome ground loop noise between sourc...

Page 6: ...se ratios to be obtained in amplifiers of desirable package size without resorting to ampli fier on a chip shortcuts These advantages are shown below in Figure 1 THE RESULT Fewer connections improved reliability shorter signal paths superior signal to noise ratio and awesome sonic performance Figure 1 XCard Internal Crossover The Punch amplifiers utilize internal active crossovers These crossovers...

Page 7: ... Punch amplifiers use an analog computer process to maximize safe output power under all operating conditions The innovative NOMAD NOn Multiplying Advanced Decision system is the most sophisticated version of this technique ever used bringing previously unavailable levels of accuracy stability temperature immunity and reliability to this critical process NOMAD makes advanced decisions based on dev...

Page 8: ...ls The heavy duty gold plated terminal block connectors and will accept wire sizes from 8 AWG to 18 AWG These gold plated connectors are immune to corrosion that can cause signal deterioration 4 Power Terminals The power and ground connectors on the Punch amplifier are gold plated and will accommodate up to 8 AWG wire maximizing the input current capability of the amplifier 5 REM Terminal This gol...

Page 9: ...minimum or counterclockwise position 9 LED Power Indicator The LED illuminates when the unit is turned on 10 XCard Internal Crossover This built in crossover card is configurable for a multitude of operating frequencies The orientation ofthecardinitssocketdeterminesthefunctionofhigh pass low pass or full range operation 6 HP LP HP LP FULL For Bridged Mono Wiring Connect 4Ω mono woofer to L of ampl...

Page 10: ...beginning the installation 3 For easier assembly we suggest you run all wires prior to mounting your amplifier in place 4 Route all of the RCA cables close together and away from any high current wires 5 Use high quality connectors for a reliable installation and to minimize signal or power loss 6 Think before you drill Be careful not to cut or drill into gas tanks fuel lines brake or hydraulic li...

Page 11: ...f the trunk will not provide proper cooling and will severely affect the performance of the amplifier and is strongly not recommended Passenger Compartment Mounting Mounting the amplifier in the passenger compartment will work as long as you provide a sufficient amount of air for the amplifier to cool itself If you are going to mount the amplifier under the seat of the vehicle you must have at lea...

Page 12: ... the battery prior to beginning the installation 1 Configure the internal XCard crossovers prior to installation Refer to Using the XCard page 14 for further information 2 Plan the wire routing Take care when running signal level RCA cables to keep them close together but isolated from the amplifier s power cables and any high power auto accessories especially electric motors This is done to preve...

Page 13: ... it to the other end of the fuseholder Install the plastic spacer in the fuseholder and attach the cable to the fuseholder body NOTE The B cable MUST be fused 18 or less from the vehicle s battery Install the fuseholder under the hood and prepare the cable ends as stated above Connections should be water tight 4 Strip 3 8 from the battery end of the power cable and crimp a large ring terminal to t...

Page 14: ... speaker terminal and tighten the set screw to secure into place Be sure to maintain proper speaker polarity DO NOT chassis ground any of the speaker leads as unstable operation may result 10 Perform a final check of the completed system wiring to ensure that all connections are accurate Check all power and ground connections for frayed wires and loose connections which could cause problems 11 Aft...

Page 15: ...filter in series with the circuit will reduce power to the speaker by 6dB octave above or below the crossover point depending on whether it is a high pass or low pass filter More complex systems such as 12dB octave or 18dB octave can cause impedance problems if not professionally designed Passive crossovers are directly dependent upon the speaker s impedance and component value for accuracy When p...

Page 16: ...00µF 3 3mH 50µF 600 5mH 136µF 1 0mH 68µF 2 0mH 33µF 800 41mH 100µF 82mH 50µF 1 6mH 26µF 1000 31mH 78µF 62mH 39µF 1 2mH 20µF 1200 25mH 66µF 51mH 33µF 1 0mH 16µF 1800 16mH 44µF 33mH 22µF 68mH 10µF 4000 08mH 20µF 16mH 10µF 33mH 5µF 6000 51µH 14µF 10mH 6 8µF 20mH 3 3µF 9000 34µH 9 5µF 68µH 4 7µF 15mH 2 2µF 12000 25µH 6 6µF 51µH 3 3µF 100µH 1 6µF 2 OHMS 8 OHMS 4 OHMS L C L C L C L C L Low Pass Inductor...

Page 17: ...al formula is R Low Pass Full Range High Pass FULL HP LP HP LP The crossover functions are controlled through the use of an XCard and can be set for high pass low pass or full range operation The XCard shipped with your amplifier is set for Full Range Each crossover card has two faces one face operates Full Range the other has arrows to indicate the edge for selecting HP high pass or LP low pass o...

Page 18: ... with 0 022µF caps Our tests have shown that using 0 047µf capacitors for frequencies below 100Hz and 0 022µf capacitors for frequencies above 100Hz result in more linear crossover control Refer to the Specifications page to determine the capacitor value of each supplied XCard a d v a n c e d O p e r a t i o n Frequency R1 R2 20Hz 357kΩ 357kΩ 25Hz 287kΩ 287kΩ 30Hz 237kΩ 237kΩ 35Hz 205kΩ 205kΩ 40Hz...

Page 19: ...ble Power Connections I N S T A L L A T I O N LED Connect to remote turn on lead of source unit Connect to chassis ground of vehicle Connect to B of battery with appropriate fuse value Less than 18 GND B P55 2 P75 2 P125 2 P225 2 20A 30A 40A 50A REM ...

Page 20: ...Input Left Gain Treble L Speaker R Speaker RCA Input 2Ω min 2Ω min RCA inputs are connected to both left and right channels Gain for left and right channels operate independently Impedance for each channel should be 2Ω minimum XCard can be set for High Pass Low Pass or Full Range ...

Page 21: ... L Speaker R Speaker RCA Input 4Ω min Mono Operation RCA inputs are connected to both left and right channels Gain for left and right channels are set equally to balance the subwoofer Impedance for mono channel should be 4Ω minimum XCard can be set for High Pass Low Pass or Full Range ...

Page 22: ... balance the subwoofer Impedance for each channel should be 2Ω minimum Impedance for mono channel should be 4Ω minimum XCard is set for Full Range Passive Crossovers are needed for proper stereo mono operation Bass Right Gain Right Input Left Input Left Gain Treble L Speaker RCA Input 4Ω min R Speaker 2Ω min 2Ω min Stereo Mono Operation ...

Page 23: ... Way System Crossover Tweeter Midrange 80Hz HP XCard 12dB octave HP 80Hz Crossover Tweeter Midrange AUD SEL 1 2 3 4 5 6 RDM RPT SCAN PAUSE D SCN DIM AMFM Ch RPT LD RDM DISC ST P SCN LOUD DSPL R CLOCK ILLUM PWR AUTO VOL TUNE ...

Page 24: ... Woofer 8Ω Woofer Front Rear 80Hz LP XCard 80Hz HP XCard 12dB octave HP 80Hz 12dB octave LP 80Hz Crossover Tweeter Midrange AUD SEL 1 2 3 4 5 6 RDM RPT SCAN PAUSE D SCN DIM AMFM Ch RPT LD RDM DISC ST P SCN LOUD DSPL R CLOCK ILLUM PWR AUTO VOL TUNE ...

Page 25: ...dB octave HP 12dB octave LP 275Hz 30Hz 12dB octave HP 12dB octave LP 80Hz Midbass 4Ω 80Hz HP 12dB octave HP 80Hz HP 24dB octave HP 30Hz 12dB octave HP 80Hz HP XCard 275Hz LP XCard 80Hz LP XCard 3 AUD SEL 1 2 3 4 5 6 RDM RPT SCAN PAUSE D SCN DIM AMFM Ch RPT LD RDM DISC ST P SCN LOUD DSPL R CLOCK ILLUM PWR AUTO VOL TUNE ...

Page 26: ...Hz 24dB octave HP 12dB octave LP 275Hz 30Hz 12dB octave HP 12dB octave LP 80Hz Midbass 4Ω 80Hz HP 12dB octave HP 80Hz HP 24dB octave HP 30Hz 12dB octave HP Crossover Tweeter Midrange Crossover Tweeter Midrange Rear 3 80Hz HP XCard 80Hz HP 12dB octave HP AUD SEL 1 2 3 4 5 6 RDM RPT SCAN PAUSE D SCN DIM AMFM Ch RPT LD RDM DISC ST P SCN LOUD DSPL R CLOCK ILLUM PWR AUTO VOL TUNE ...

Page 27: ...g the chance of noise in the system The Punch Caps are available in a variety of values and will maximize both the sound quality and performance that Rockford Fosgate amplifiers can deliver 24 Recommended capacitance is 1 farad per 1000 watts ATTENTION We recommend your Authorized Rockford Fosgate Dealer install your new accessory ROCKFORD FOSGATE ACCESSORIES 1 0 the connecting 1 farad 20 VDC 95 C...

Page 28: ...uthorized Rockford Fosgate Dealer 25 XM50 50Hz XM200 200Hz XM70 70Hz XM275 275Hz XM80 80Hz XM400 400Hz XM100 100Hz XM4 5k 4 500Hz XM150 150Hz XM6 5k 6 500Hz XM00 Blank card for custom crossover ATTENTION We recommend your Authorized Rockford Fosgate Dealer install your new accessory Crossover Card High Pass Low Pass Full Range R1 R2 R1 R2 FULL ...

Page 29: ... substitute withknownworkingsourceand cables and repair or replace as necessary Check XCard position and re pair or replace as necessary Disconnect existing speakers and test with known working speakers and wires If amplifier plays check and repair wiring and installation of speakers as necessary Disconnect existing speakers and test with known working speakers If amplifier plays check and repair ...

Page 30: ...ced properly in crossover slots Low battery voltage or large voltage drops to the amplifier under load Amplifier Noise Turn on Pop Voltage spike from output of preceding component is en tering amplifier through in put signal Voltage spike from remote turn on lead is entering through REM input terminal Disconnect input signal to amplifier and turn amplifier on and off If noise is elimi nated connec...

Page 31: ...mpli fier Connect one component at a time to determine the culprit Repairorreplacecom ponents as necessary Disconnect existing speakers and connect a test speaker to the output terminals of the amplifier If noise is gone re route the speaker cables away from sources of high voltage Checkgroundconnectionsand connectamplifiers signalpro cessors andothercomponents to a central location or try a diffe...

Page 32: ...nufacturers represent their amplifiers output power in excess of 10 distortion They use many names for this measurement such as Total Maximum Power or Maximum Output Power This is not indicative of the actual usable output power Listening to Loudspeakers Not Resistors A loudspeaker is not a resistor A resistor s value resistance measured in ohms isfixed Aloudspeaker simpedanceisdynamic Itisconstan...

Page 33: ... the same output voltage regardlessofloadcharacteristicsandwillnotalterthesignalitisreproducing A perfect amplifier when measured by the Audio Graph PowerCube would present data that forms a perfect cube Unfortunately amplifiers are not perfect The laws of physics generally prevent it A great amplifier is about the best one can hope to attain As you can see by the PowerCube and as you will experie...

Page 34: ...driven into a 4Ω load 27 5 Watts 37 5 Watts 62 5 Watts 112 5 Watts from 20 to 20 000 Hz with less than 0 05 Total Harmonic Distortion THD RMS continuous power per channel both channels driven into a 2Ω load 55 Watts 75 Watts 125 Watts 225 Watts from 20 to 20 000 Hz with less than 0 1 Total Harmonic Distortion THD RMS continuous power mono into a 4Ω load from 20 to 20 000 Hz with 110 Watts 150 Watt...

Page 35: ...e 30 Volts µs IM Distortion IHF 0 05 Source Unit Compatibility 15dB gain overlap 17V max Input Sensitivity 0dB gain overlap Variable from 150mV to 3V Protection NOMAD Internal analog computer output protection circuitry limits power in case of overload Thermal switch shuts down the amplifier in case of overheating Battery Fusing Rates External to Amplifier 20 amps 30 amps 40 amps 50 amps Fuse Type...

Page 36: ...stating the customer name dealer name product purchased and date of purchase Products found to be defective during the warranty period will be repaired or replaced with a product deemed to be equivalent at Rockford s discretion What is Not Covered 1 Damage caused by accident abuse improper operations water theft 2 Any cost or expense related to the removal or reinstallation of product 3 Service pe...

Page 37: ...I N T E R N A T I O N A L I N F O R M A T I O N 34 ...

Page 38: ...ÓN PARA EL MONTAJE 35 Los ingenieros de Rockford han diseñado los amplificadores Punch 2 para ofrecer en el dificil entorno de un automóvil una calidad de sonido superior en un producto flexible fiable y eficiente Trans ana es un circuito de baja tensión en la etapa de preamplificación de los amplificadores Punch 2 que permite que la musica suene limpia y cristalina y muy real incluso a altos nive...

Page 39: ... usarse un filtro pasivo para la configuracion estereo mono No llevar a masa ningun cable de altavoz Crossovers pasivos se requieren para operar el amplificador en estereo mono 36 E SPAÑOL Terminal GND Prepare un trozo de cable para usarlo como toma de masa Prepare un punto de masa en el chasis rascando y eliminando la pintura de la superficie de metal y limpielo de toda suciedad asegure el cable ...

Page 40: ...SM Composants Montés en Surface améliorent l efficacité de l amplificateur L ensemble de ces atouts donne à l amplificateur Punch une qualité de son inégalable sous une carrosserie pare balles Voustrouverezdeplusamplesinformationssurcestechnologies exclusivement conçues et brevetées par Rockford dans la rubrique technique INTRODUCTION MONTAGE 37 Montage dans le coffre Monter l amplificateur vertic...

Page 41: ...eur Bass Right Gain Right Input Left Input Left Gain Treble L Speaker RCA Input 4Ω min R Speaker 2Ω min 2Ω min Opération stéréo mono tri mode Les entrées RCA sont connectées aux canaux gauche et droit Les Gains des canaux gauche et droit sont réglés de la même manière pour équilibrer le subwoofer L impédance de chaque canal devrait être de minimum 2Ω L impédance du canal mono devrait être de minim...

Page 42: ...n Sie den Sicherungshalter im Motorraum ALLE Verbindungen müssen wasserdicht sein EINBAUORT Rockford Ingenieure haben die Punch 2 Verstärker entwickelt Mit höchstem Technologie Standart hervorragender Klangqualität einfacher Handhabung und bester Servicefreundlichkeit Trans ana ist eine Nieder Volt Schaltung im Vorverstärkerteil aller Pünch 2 Verstärker die für kristallklaren Klang auch bei sehr h...

Page 43: ...Spannung die Sie durch einen Schalter ein und ausschalten können Bass Right Gain Right Input Left Input Left Gain Treble L Speaker RCA Input 4Ω min R Speaker 2Ω min 2Ω min Stereo Mono Operation Chinch Eingänge des rechten und linken Kanales anschlieben Gain Kontrolle gleich stellen um das Signal des Subwoofer anzugleichen Die Impedanz für jeden Kanal sollte minimum 2 Ohm betragen Die Impedanz des ...

Page 44: ...ace Mount permette di raggiungere efficienze elevatissime Il risultato finale di tutte queste tecnnologie moderne é che gli amplificatori Punch suonano meravigliosamente e sono indistruttibili a prova di proiettile Una spiegazionedi questetecnologieinnovative moltecoperteda brevettiRockford sono descritte in un altra sezione di questo manuale INTRODUZIONE Nel Bagagliaio Montando l amplificatore su...

Page 45: ... e connettersi all amplificatore Bass Right Gain Right Input Left Input Left Gain Treble L Speaker RCA Input 4Ω min R Speaker 2Ω min 2Ω min Stereo Mono Operation Ingressi RCA collegati sia al canale destro sia al sinistro Gain controllo di sensibilitá regolati in modo identico per bilanciare il subwoofer L impedenza di ciascun canale deve essere minimo 2Ω L impedenza per il canale mono deve essere...

Page 46: ...NOTES ...

Page 47: ...NOTES ...

Page 48: ...tion of this product are produced by American companies However due to the global nature of their manufacturing facilities and the loudspeaker parts industry in general some parts may be manufactured in other countries Rockford Fosgate Rockford Corporation 546 South Rockford Drive Tempe Arizona 85281 U S A In U S A 602 967 3565 In Europe Fax 49 8503 934014 In Japan Fax 81 559 79 1265 ...

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