Rockford Fosgate 225.2, 75.2, 55.2, 125.2 manual Symptom, Engine Noise

Page 31

 

 

 

 

 

TROUBLE-S

 

 

 

 

 

 

 

 

H

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

I

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

G

 

 

 

 

 

 

 

 

 

Symptom

Diagnosis

 

Remedy

 

 

 

 

 

 

 

 

 

 

Engine Noise

Noise is radiating into RCA

Check connections, run the

 

 

 

 

signal cable.

 

RCA cables on a different route

 

 

 

 

 

 

away from sources of high

 

 

 

 

 

 

current.

 

 

 

 

 

 

 

 

 

 

 

 

Bad component in the sig-

Check connections, bypass

 

 

 

 

nal chain.

 

additional components (cross-

 

 

 

 

 

 

overs and equalizers) between

 

 

 

 

 

 

the source unit and the ampli-

 

 

 

 

 

 

fier. Connect one component

 

 

 

 

 

 

at a time to determine the

 

 

 

 

 

 

culprit. Repair or replace com-

 

 

 

 

 

 

ponents as necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

Noise is radiating

into

Disconnect existing speakers

 

 

 

 

speaker cables.

 

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.

 

 

 

 

 

 

 

 

 

 

 

 

 

Multiple grounds in

the

Check ground connections and

 

 

 

 

audio system.

 

connect amplifiers, signal pro-

 

 

 

 

 

 

cessors, and other components

 

 

 

 

 

 

to a central location or try a

 

 

 

 

 

 

different grounding point on

 

 

 

 

 

 

the chassis.

 

 

 

 

 

 

 

 

 

 

 

 

Ground loop between source

Check connections, disconnect

 

 

 

 

unit and antenna.

 

antenna from source unit. If

 

 

 

 

 

 

noise is gone, install an an-

 

 

 

 

 

 

tenna ground loop isolator.

 

 

 

 

 

 

 

 

 

 

 

• If noise persists, see your Authorized Rockford Fosgate Dealer.

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Image 31
Contents Punch Practice Safe Sound T T I N G S T a R T E D Table of ContentsT R O D U C T I O N Punch Amplifier Accessory PackTransana Technical Design FeaturesDSM Discrete Surface Mount Technology Mosfet Devices Design Features P L I F I E R Installation Considerations Engine Compartment Mounting Mounting LocationTrunk Mounting Passenger Compartment MountingWiring the System Battery and ChargingPunch Punch 55.2, 75.2Page Using Passive Crossovers Ohms Table of Crossover Component Values3386 Using the Xcard7234 = R in kΩ for .022μf cap Butterworth Alignment Q = Resistor ChartPower Connections InstallationStereo Operation Mono Operation Stereo/Mono Operation System Diagrams Way System Way System 80Hz HP 12dB/octave HP Way System w/Fadable Rear StageEnergy Storage Capacitors Rockford Fosgate AccessoriesXCard Crossovers Symptom Diagnosis Remedy TroubleshootingSpeaker Output Engine Noise SymptomListening to Loudspeakers Not Resistors Dynamic Power MeasurementsAbout the Dynamic Power Measurements MusicInformation Cubed What is an Amplifier?E C I F I C AT I O N S Dimensions 95/8 24.4cm W Length of Warranty Limited Warranty InformationPage Terminal B+ Montaje en el MalateroMontaje en el Compartimento de Pasajeros InstalacionNo llevar a masa ningun cable de altavoz Terminal GNDTerminal REM Funcionamiento Estereo/MonoMontage dans le coffre InstallationMontage dans lhabitacle Français Opération stéréo/mono tri mode+ Anschluβ Im FahrzeugkofferraumAuf der Beifahrerseite EinbauREM Anschluβ GND AnschluβTerminale B+ cavo positivo InstallazioneNel Bagagliaio NellabitacoloTerminale REM Consenso di accensione Terminale GND cavo negativoNo T E S No T E S Made in the USA

225.2, 125.2, 55.2, 75.2 specifications

Rockford Fosgate has long been recognized for delivering high-quality audio solutions for car enthusiasts, and the 225.2, 125.2, 55.2, and 75.2 amplifiers are no exception. These amplifiers cater to various audio needs, whether you are looking to enhance the sound quality in your vehicle or set up a full-fledged audio system.

The Rockford Fosgate 225.2 is a powerful two-channel amplifier that offers a maximum power output of 225 watts. It features a MOSFET power supply, providing excellent efficiency and reliability under load. The 225.2 also includes a low-pass filter and built-in crossover, enabling users to tailor the sound to fit specific audio preferences by adjusting the frequency response. Its sleek design and durable construction ensure it can withstand the demands of a mobile environment.

Meanwhile, the 125.2 amplifier is designed for those who want a compact yet powerful audio solution. This two-channel amplifier delivers 125 watts of peak power and incorporates advanced technologies such as a high-level input, allowing for easy integration into factory systems. The 125.2 also features adjustable bass boost to enhance low-frequency performance, making it an attractive choice for those who enjoy bass-heavy music genres.

On the other hand, the Rockford Fosgate 55.2 amplifier is a more compact offering. Despite its smaller size, it provides impressive sound quality and power output of 55 watts per channel. Ideal for adding an extra punch to factory speakers, the 55.2 utilizes a low-impedance design to maximize efficiency. It is particularly well-suited for entry-level audio systems, making it accessible for those just starting in car audio.

Lastly, the 75.2 amplifier strikes a balance between size, power, and versatility, delivering 75 watts per channel. With features like thermal and overload protection, the 75.2 ensures both safety and performance under stress. The compact form factor makes it easy to install in various vehicle models without sacrificing audio quality.

All of these amplifiers showcase Rockford Fosgate's commitment to sound quality, durability, and user-friendly design. Each model incorporates technologies that enhance performance while offering flexibility for customization, making them excellent choices for car audio enthusiasts looking to elevate their listening experience. Whether you need a compact solution for upgraded sound or a powerhouse for a full system, Rockford Fosgate has options that cater to every need.