N o i s e s W h i l e t h e E n g i n e i s O n o r O f f

S y s t e m h i s s :

System hiss is a white noise that occurs even when the engine is off. It is usually due to excessively high gain settings. If the hiss is still audible when you disconnect the input cables from the amplifier, check the input level on the amplifier. If the hiss disappears when you remove the input cable, it may be a poor quality source unit, components between the amplifier and the source unit, or poor level settings.

D i s t o r t i o n :

Distortion is garbled sounding music. This can often be caused by a shorted speaker wire. Symptoms of this include no sound in one channel and severe distortion in the other. Use the following guide to help you find the source of distortion.

Is there audible distortion at all of the amplifier outputs?

NO

YES

Check each side of the amplifier independently to see if the distortion is only on one channel. Is that the case?

Try reducing the input level controls.

NO

Check for distortion in the signal path prior to the amplifier.

YES

Swap the output connection left to right. Check for shorted speaker wire. Did the problem switch sides?

NO

YES

Swap the input side

 

Check and/or replace

left/right. Did the

 

the speaker that is

distortion switch

 

distorting.

sides?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

YES

Contact your dealer.

Check the source unit and

 

components between the source

 

unit and amplifier

 

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Directed Electronics MA4100 I s e s W h i l e t h e E n g i n e i s O n o r O f f, S t e m h i s s, S t o r t i o n
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MA4100 specifications

The Directed Electronics MA4100 is a cutting-edge car audio amplifier that brings dynamic power and superior sound quality to any vehicle's audio system. Engineered with precision, the MA4100 is designed to deliver enhanced audio performance while ensuring reliability and longevity.

One of the standout features of the MA4100 is its high power output. With a maximum power rating of 1000 watts, this amplifier provides impressive amplification for both high- and low-impedance speakers. Its four-channel configuration allows for versatile installation options, making it suitable for driving multiple speakers or subwoofers. The amplifier is capable of a bridged mode, allowing users to combine channels and boost output even further for a robust listening experience.

Equipped with advanced Class D technology, the MA4100 is both efficient and compact. This design minimizes heat production and ensures that the amplifier runs cool even under heavy load. Compared to traditional amplifiers, Class D amplifiers consume less power, making the MA4100 an energy-efficient choice for car audio enthusiasts. This efficiency also translates into smaller size, providing flexibility in installation without compromising on power delivery.

The Directed Electronics MA4100 features a built-in crossover and adjustable gain settings, allowing users to tailor the sound output to their preferences and vehicle acoustics. The variable high-pass and low-pass filters enable users to control which frequencies are amplified, optimizing the audio experience.

Furthermore, the MA4100 is designed with durability in mind. With a robust build quality, including a heat-sink design that facilitates efficient cooling, it is built to withstand the rigors of automotive environments. The amplifier is also equipped with protection circuitry to safeguard against overheating, short circuits, and overloading, ensuring long-term performance and reliability.

In terms of installation, the MA4100 includes high-level inputs that make it compatible with factory audio systems, allowing for easy integration without requiring extensive modifications. With its combination of power, efficiency, and sound quality, the Directed Electronics MA4100 is an excellent choice for audiophiles looking to upgrade their car's audio system. Whether for daily commuting or road trips, the MA4100 elevates the in-car listening experience to new heights.
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