Basically, the sound that comes from speakers gets distorted as soon as the volume is increased but when sound waves are passed through an amplifier; you get far superior quality of sound without any distortion.
What are amplifiers?
The amplifiers are meant to increase the amplitude of a voltage or current or a signal, usually from AC signal wave. They increase the amplitude without changing parameters of the waveform such as the shape of wave and frequency.
Classification of amplifiers
According to the output properties of amplifiers, they are classified as:
- Voltage amplifiers – to make the amplitude of the output voltage waveform greater than that of the input voltage waveform
- Current amplifiers – to make the amplitude of the output current waveform greater than that of the input current waveform
- Power amplifiers – in which the product of voltage and current at the output is greater than the product of voltage and current at the input. These may be class A, class B, class AB or class D power amplifiers.
Types of amplifiers
Amplifiers perform a variety of functions in various electronic systems and are most commonly used circuits in electronics.
The most common types of amplifiers are:
- Audio frequency amplifiers – are used to amplify signals in the acceptable range for human hearing that approximately 20 Hz to 20 kHz. However, Hi-Fi may increase range up to 100 Hz.
- Intermediate Frequency Amplifiers – are tuned amplifiers commonly used in radio devices, TV sets and radar devices
- Radio Frequency amplifiers – in which the frequency of operation is controlled by another tuned circuit equipment.
- Ultrasonic amplifiers – are audio amplifier used for managing frequencies from 20 kHz to up to 100 kHz ranges.
- Wideband amplifiers – are used in measuring equipment such as oscilloscopes.
- DC amplifiers – are used to amplify DC (0 Hz) voltages or very low-frequency signals. Commonly used in common in many electrical control systems and measuring instruments
- Video amplifiers- are a special type of wideband amplifiers
- Buffer amplifiers – are placed between two other circuits to isolate the circuits from each other
- Operational amplifiers – have been developed from circuits designed for the early analog computers for mathematical calculations.
In order to get maximum benefits of amplifiers, it is equally important to use standard and high-quality amplifier wiring kit.
Components of Amplifier Wiring Kit
A proper amplifier wiring kit helps the proper functioning of your car amplifier.
Generally amplifier wiring kit is a combination of:
- Good quality RCA cables; usually 16 ft in length or longer
- A good remote wire
- Positive wire of quality stranded conductors, about 18 fit length
- Ground wire
- Speaker wire
- Crimp ring terminals for the positive & negative power wires
- High-quality fuse and Fuse holder
- Zip ties
Though copper wire is best yet nowadays, copper-coated aluminum (CCA) wiring being less-expensive version is used in power cable for amplifiers & wiring kits.
Best available brands of amplifiers
The best quality car audio system for your car, with high-quality amplifiers & wiring kits from MotoRogue, are:
- Sony XM-N1004 in-Car Amplifier (Black)
- Pioneer GM-A3702 Two Class AB Car Amplifier
- Kenwood KAC – PS 704 EX
- Interfire GRLA 5500/ 1D
- I-Copper I-08E3, 8 Gauge Amplifier Wiring Kit
Motorouge 