Instruction/ maintenance manual of the product 125.2 Rockford Fosgate
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Dear Customer, Congratulations on your purchase of the world's finest brand of car audio amplifiers. At Rockford Fosgate we are fanatics about musical reproduction at its best, and we are pleased you chose our product.
T ABLE OF C ONTENTS Introduction ................................................................................................ 1 Punch Amplifier Accessory Pack ................................................................... 1 Technical Design Features .
I NTRODUCTION Rockford engineers designed the Punch 55. 2 , 75. 2 , 125. 2 and 225. 2 amplifiers to withstand the rugged automotive environment while delivering superior sound quality in a flexible, reliable, and efficient package. TRANS•ANA is a low voltage circuit in the preamp stage of all Punch .
T ECHNICAL D ESIGN F EA TURES – 2 – ◆ T RANS•ANA ( TRANSconductance Active Nodal Amplifier) The TRANS•ANA ( TRANS conductance A ctive N odal A mplifier) is a circuit that allows the audio signal to pass through the amplifier at low voltage.
◆ DSM (Discrete Surface Mount) Technology The DSM (Discrete Surface Mount) manufacturing process combines the advantages of both discrete components and integrated circuitry. Rockford Fosgate is the only American amplifier manufacturer to have invested millions into this process.
◆ 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 ( M etal O xide S emiconductor F ield E ffect T ransistor) devices offer several important inherent advantages over the 30 year old technology of bi- polar design.
D ESIGN F EA TURES 1. Cast Aluminum Heatsink – The cast aluminum heatsink of the Punch amplifier dissipates heat generated by the amplifier's circuitry. The inherent advantage of casting provides a 30% improvement of cooling over conventional extrusion heatsink designs.
7. Input Sensitivity Controls – The input level controls are preset to match the output of most source units. They can be adjusted to match output levels from a variety of source units. 8. Punch Equalization Controls – The Punch EQ helps correct for acoustical deficiencies in the listening environment.
I NST ALLA TION C ONSIDERA TIONS The following is a list of tools you will need for installing the Punch amplifier: Allen wrenches 9/64" & 3/32" (included) Voltmeter Wire strippers Battery post wrench Electric hand drill w/assorted bits Wire cutters 17' (518.
M OUNTING L OCA TION The mounting location and position of your amplifier will have a great effect on its ability to dissipate the heat generated during normal operation. The design of our cast aluminum heatsink serves to easily dissipate the heat generated over a wide range of operating conditions.
B A TTERY AND C HARGING – 9 – Amplifiers will put an increased load on the vehicle's battery and charging system. We recommend checking your alternator and battery condition to ensure that the electrical system has enough capacity to handle the increased load of your stereo system.
– 10 – Punch 55. 2 , 75. 2 , 125. 2 Trim the power cable to within 18" of the battery and install the protective rubber boot, which is packed with the fuseholder, over the end of the wire. Strip 3/8" of insulation from the wire and insert into the end of the fuseholder, then crimp it in place.
amplifier. Connect the other end of the REM wire to a switched 12 volt positive source. The switched signal is usually taken from the source unit's auto antenna or the accessory lead.
U SING P ASSIVE C ROSSOVERS A passive crossover is a circuit that uses capacitors and/or coils and is placed on speaker leads between the amplifier and speaker. The crossover delegates a specific range of frequencies to the speaker for optimum driver performance.
T ABLE OF C ROSSOVER C OMPONENT V ALUES 6dB/Octave Low-Pass 6dB/Octave High-Pass Freq. Hertz Speaker Impedance 80 4.1mH 1000 µ F 8.2mH 500 µ F 16mH 250 µ F 100 3.1mH 800 µ F 6.2mH 400 µ F 12mH 200 µ F 130 2.4mH 600 µ F 4.7mH 300 µ F 10mH 150 µ F 200 1.
– 14 – 3386 f o = R (in k Ω ) for .047 µ f cap = R (in k Ω ) for .022 µ f cap 7234 f o Where: R = Ω f o = desired crossover frequency c = capacitor in farads ex: .047 x 10 -6 for .047 µ f cap Crossover Card High Pass Low Pass Full Range R1 R2 R1 R2 FULL The crossover point can be altered by changing all 4 resistor values.
R ESISTOR C HART – 15 – Frequency R1 R2 20Hz 169k Ω 169k Ω 25Hz 133k Ω 133k Ω 30Hz 110k Ω 110k Ω 35Hz 95.3k Ω 95.3k Ω 40Hz 84.5k Ω 84.5k Ω 45Hz 75k Ω 75k Ω 50Hz 68.1k Ω 68.1k Ω 55Hz 61.9k Ω 61.9k Ω 60Hz 56.2k Ω 56.
– 16 – I NST ALLA TION *Keep grounds as short as possible 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 .
– 17 – I N S T A L L A T I O N ® ® Stereo Operation Bass Right Gain Right Input Left Input Left Gain T reble – + +L– Speaker +R– Speaker – + RCA Input 2 Ω min.
– 18 – I N S T A L L A T I O N ® ® Bass Right Gain Right Input Left Input Left Gain T reble +– +L– Speaker +R– Speaker RCA Input 4 Ω min.
– 19 – I N S T A L L A T I O N ® ® • 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 ea.
– 20 – S YSTEM D IAGRAMS 2-Way System Crossover T weeter Midrange 80Hz HP XCard 12dB/octave HP 80Hz Crossover T weeter Midrange AUD SEL 1 2 3 4 5 6 RDM RPT SCAN PAUSE D.
– 21 – 3-Way System Crossover T weeter Midrange 8 Ω W oofer 8 Ω W oofer Front Rear 80Hz LP XCard 80Hz HP XCard 12dB/octave HP 80Hz 12dB/octave LP 80Hz Crossover T weeter Midrange AUD SEL 1 2 3 4 5 6 RDM RPT SCAN PAUSE D.SCN DIM AM FM Ch RPT LD RDM DISC ST P.
– 22 – 4-Way System Crossover T weeter Midrange Crossover T weeter Midrange Front W oofer 8 Ω 80Hz HP 24dB/octave HP 80Hz 24dB/octave HP 12dB/octave LP 275Hz 30Hz 12dB/octave HP 12dB/octave LP 8.
4-Way System w/Fadable Rear Stage – 23 – Crossover T weeter Midrange Crossover T weeter Midrange 80Hz HP XCard 275Hz LP XCard Front W oofer 8 Ω 80Hz LP XCard 80Hz HP 24dB/octave HP 80Hz 24dB/oct.
Energy Storage Capacitors Energy storage capacitors are used to provide extra current needed by amplifiers to reproduce musical transients. The capacitors also have the natural ability to filter AC ripple caused by the alternator, reducing the chance of noise in the system.
XCard Crossovers Additional crossover card frequencies are available for specialized require- ments. You can get the following XCards from your Authorized Rockford Fosgate Dealer. ® – 25 – XM50 = 50Hz XM200 = 200Hz XM70 = 70Hz XM275 = 275Hz XM80 = 80Hz XM400 = 400Hz XM100 = 100Hz XM4.
– 26 – T ROUBLESHOOTING Amplifier does not turn on (Power LED is off) Symptom Diagnosis Remedy Voltage applied to the REM terminal of the amplifier is not between 10.5 and 15.5 volts or there is no voltage present. Voltage to the B+ terminal of the amplifier is not be- tween 10.
– 27 – Speaker Output Low or Distorted Readjust input gains of amplifier. Check system with known work- ing source and repair or replace original source as needed. Check XCard position and repair or replace as necessary. Check the alternator, battery, fuse, and power and ground wiring.
– 28 – Noise is radiating into RCA signal cable. Bad component in the sig- nal chain. Noise is radiating into speaker cables. Multiple grounds in the audio system. Ground loop between source unit and antenna. Engine Noise Symptom Diagnosis Remedy Check connections, run the RCA cables on a different route away from sources of high current.
– 29 – D YNAMIC P OWER M EASUREMENTS About the Dynamic Power Measurements The Audio Graph PowerCube is a test instrument used to measure the output of an amplifier in accordance with IHF-202 industry standards.
Information Cubed The data acquired in the testing procedure is then graphed in the form of a 3-dimensional cube, hence the name PowerCube . The Phase Angle is expressed on the horizontal axis, the Output Voltage is presented on the vertical axis and the Impedance is displayed on the Z axis.
– 31 – PUNCH 55. 2 PUNCH 75.2 PUNCH 125. 2 PUNCH 225. 2 Dynamic Power Rating (IHF-202 Standard) - Measured at 14.4 Volts Mono into a 4 Ω Load 240 Watts 320 Watts 440 Watts 690 Watts Per channel .
PUNCH 55. 2 PUNCH 75. 2 PUNCH 125. 2 PUNCH 225. 2 Dimensions 9 5 / 8 " (24.4cm) W 9 5 / 8 " (24.4cm) W 9 5 / 8 " (24.4cm) W 9 5 / 8 " (24.4cm) W 10 9 ⁄ 32 " (26.1cm) L 11 9 ⁄ 32 " (28.65cm) L 12 9 ⁄ 32 " (31.16cm) L 13 9 ⁄ 32 " (33.
L IMITED W ARRANTY I NFORMA TION – 33 – Ship to: Speakers Rockford Acoustic Design (Receiving-speakers) 609 Myrtle N.W. Grand Rapids, MI 49504 RA#:_________________ Ship to: Electronics Rockford Corporation Warranty Repair Department 2055 E.
I NTERNA TIONAL I NFORMA TION – 34 –.
LEA DETENIDAMENTE LAS SIGUIENTES INSTRUCCIONES DE INSTALACION DEL PRODUCTO. EVITARA POSIBLES DAÑOS A VD., AL VEHICULO O AL PRODUCTO. Montaje en el Malatero Monte el amplificador verticalmente con las lineas del radiador orientadas de arriba hacia abajo.
Bass Right Gain Right Input Left Input Left Gain T reble +L– Speaker RCA Input +– 4 Ω min. – + – + +R– Speaker 2 Ω min. 2 Ω min. Funcionamiento Estereo/Mono • Las entradas RCA se con.
ATTENTION: Veuillez lire les instructions suivantes pour l'installation de cet amplifcateur. Ne pas les suivre pourrait causer des blessures ou endommager le véhicule.
Terminal GND Préparez une longueur de câble pour la connexion à la masse. Préparez le châssis en grattant la peinture de la surface métallique et nettoyez la saleté et l'huile. Attachez le câble au châssis avec une vis. Terminal REM Connectez le fil REM à une commande 12 volts positive de la source.
BITTE LESEN SIE DIESE GEBRAUCHSANLEITUNG ZUERST SORGFÄLTIG DURCH. DAS KANN SIE VOR DEM FALSCHEN EINSATZ, AUSFALLEN ODER SOGAR BESCHÄDIGUNG DES PRODUKTES ODER IHRES FAHRZEUGES SCHÜTZEN.
GND Anschlu β Preparieren Sie Ihr Kabel für die Negativ Leitung (Erdung). Preparieren Sie die Anschlubstelle des Erdungskabels, indem Sie das Metall gründlich reinigen und vom Lack befreien. Befestigen Sie nun die Erdung an dieser Stelle mit einer Schraube.
ATTENZIONE: SI PREGA DI LEGGERE LE SEGUENTI ISTRUZIONI PER L'INSTALLAZIONE DI QUESTO PRODOTTO. IL NON SEGUIRLE POTREBBE RISULTARE SERIAMENTE DANNOSO PER LA PERSONA O PER IL VEICOLO. Gli ingenieri Rockford hanno progettato la serie di amplificatori Punch.
Terminale GND (cavo negativo) Decidere la lunghezza del cavo e terminarlo. Preparare la massa grattando la vernice dal telaio dell'auto ed eliminando tracce di olio o sporco.
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10/97 MAN-1849-A MADE IN THE USA This product is designed, developed and assembled in the USA by a dedicated group of American workers. The majority of the components used in the construction of this product are produced by American companies.
An important point after buying a device Rockford Fosgate 125.2 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Rockford Fosgate 125.2 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Rockford Fosgate 125.2 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Rockford Fosgate 125.2 you will learn all the available features of the product, as well as information on its operation. The information that you get Rockford Fosgate 125.2 will certainly help you make a decision on the purchase.
If you already are a holder of Rockford Fosgate 125.2, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Rockford Fosgate 125.2.
However, one of the most important roles played by the user manual is to help in solving problems with Rockford Fosgate 125.2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Rockford Fosgate 125.2 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
