TROUBLE-S

 

 

 

 

 

 

H

 

 

 

 

 

 

O

 

 

 

 

 

 

O

 

 

 

 

 

 

T

 

 

 

 

 

 

I

 

 

 

 

 

 

N

 

 

 

 

 

 

G

 

 

 

 

 

 

 

 

Symptom

Diagnosis

Remedy

 

 

 

 

 

 

 

Amplifier Noise

Voltage spike from remote

Use a different 12 volt source for

(Turn-on Pop)

turn-on lead is entering

REM lead of amplifier (i.e., battery

 

through REM input terminal.

direct). If noise is eliminated, use a

 

 

relay to isolate amplifier from noisy

 

 

turn-on output.

 

 

 

Engine Noise

Noise is radiating into RCA

Check connections, run the RCA

signal cable.

cables on a different route away

 

 

 

from sources of high current.

 

 

 

 

Bad component in the signal

Check connections, bypass addi-

 

chain.

tional components (crossovers and

 

 

equalizers) between the source unit

 

 

and the amplifier. Connect one

 

 

component at a time to determine

 

 

the culprit. Repair or replace com-

 

 

ponents as necessary.

 

 

 

 

 

 

 

 

Noise is radiating into speaker

Disconnect existing speakers and

 

cables.

connect a test speaker to the output

 

 

terminals of the amplifier. If noise is

 

 

gone, reroute the speaker cables

 

 

away from sources of high voltage.

 

 

 

 

Multiple grounds in the

Check ground connections and

 

audio system.

connect amplifiers, signal proces-

 

 

sors, 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 antenna ground

 

 

loop isolator.

 

 

 

Engine Noise when

TOPAZ input circuitry (in Rock-

Supply reference ground to the

using high level

ford amps) or floating input

TOPAZ input circuit (or floating in-

inputs

circuitry (in non-Rockford

put circuit in non-Rockford amps).

 

amps) does not have refer-

Connect shield of RCA input from

 

ence to “chassis ground.” This

auxiliary amp to chassis ground of

 

noise, if any, occurs at the

radio. An alternative method is to

 

auxiliary amplifier whose in-

connect the RCA shield to the

 

puts are fed from the pass-

amplifier's power ground terminal.

 

thru output of the first amp.

 

 

 

 

 

 

 

 

 

 

 

 

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

– 22 –

Page 26 Page 28
Page 27
Image 27
Rockford Fosgate 500 Voltage spike from remote, Turn-on Pop Turn-on lead is entering, Turn-on output, Signal cable, Chain
Page 26 Page 28

150, 250, 500, 100, 800 specifications

Rockford Fosgate has long been recognized as a leader in the automotive audio industry, and their amplifier lineup, including models like the 500, 150, 250, 800, and 100, exemplifies the brand's commitment to power and performance. Each model brings unique features, technologies, and characteristics designed to cater to a wide variety of audio enthusiasts.

The Rockford Fosgate 500 amplifier, known for its impressive power output, delivers 500 watts of dynamic sound. One of its standout features is the integrated C.L.E.A.N. technology, which ensures a distortion-free experience by allowing users to set the optimal input levels. This model is ideal for those looking to drive subwoofers without compromising quality.

Another compact yet powerful option is the Rockford Fosgate 150 amplifier. This model is designed for smaller installations but does not skimp on performance. With a peak wattage of 150 watts and a built-in crossover, the 150 is perfect for enhancing speaker systems by providing clear, loud audio without the bulk. The include a low-pass crossover ensures seamless integration with subwoofers.

The Rockford Fosgate 250 takes performance a step further, delivering 250 watts. This model features efficient thermal management with an aluminum heat sink, ensuring durability and reliability even under high usage conditions. The adjustable gain control makes it easy for users to match the amplifier to their specific audio needs.

For those who seek more power, the Rockford Fosgate 800 amplifier offers an impressive 800 watts and is designed for maximum output in both mono and stereo configurations. It features a variable low-pass filter and a bass boost function, allowing users to customize their sound signature to fit individual preferences.

Lastly, the Rockford Fosgate 100 amplifier provides a solid introduction to the brand's high-performance amplifiers, offering 100 watts of power. It is an excellent choice for entry-level users who want to upgrade their sound system without diving into higher-end options. Its rugged design and reliable performance make it a preferred choice among many.

Overall, Rockford Fosgate amplifiers—500, 150, 250, 800, and 100—demonstrate a range of features tailored to meet different audio needs. Whether you are an audiophile or a casual listener, each model incorporates advanced technologies to deliver high-quality sound, making them a staple in the automotive aftermarket audio sphere.
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