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What does this mean ?

Generally, an amplifier is any device that will use a small amount of energy to control a larger amount of energy. In popular use, the term today usually refers to an electronic amplifier, often as in audio applications. The relationship of the input to the output of an amplifier — usually expressed as a function of the input frequency — is called the transfer function of the amplifier, and the magnitude of the transfer function is termed the gain.
There are many types of electronic amplifiers for different applications.

One common type of amplifier is the electronic amplifier, commonly used in radio and television transmitters and receivers, high-fidelity ("hi-fi") stereo equipment, microcomputers and other electronic digital equipment, and guitar and other instrument amplifiers. Its critical components are active devices, such as vacuum tubes or transistors.
 

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Amplifiers

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Advance Acoustic MAP305II AMPLIFIER

Advance Acoustic MAP305II AMPLIFIER

The Advance Acoustic MAP-305 II is a quality integrated amplifier which is excellent value for money. It features 2 x 100 watts of amplification, a good selection ...

Superfi Online
£499.95
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Advance Acoustic MPP206 PRE-AMPLIFIER & MAA406...

Advance Acoustic MPP206 PRE-AMPLIFIER & MAA406...

This package consists of the Advance Acoustic MPP-206 Pre-amplifier and the MAA-406 Power Amplifier. Together they make a perfectly matched amplification system ...

Superfi Online
£749.90
+ more choices

Advance Acoustic MPP206 PRE-AMPLIFIER

Advance Acoustic MPP206 PRE-AMPLIFIER

The Advance Acoustic MPP-206 is a smartly designed pre-amplifier featuring 4 stereo line inputs, a phono input suitable for both moving magnet and moving coil turntable ...

Superfi Online
£299.95
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Advance Acoustic MAA-406 POWER-AMPLIFIER

Advance Acoustic MAA-406 POWER-AMPLIFIER

The Advance Acoustic MAA-406 is an impressive power amplifier 2 x 220 watts of amplification into 4 Ohms (2 x 150 watts into 8 Ohms), balanced and unbalanced inputs ...

Superfi Online
£499.95
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Advance Acoustic MAP305DA II AMPLIFIER WITH ONBOARD...

Advance Acoustic MAP305DA II AMPLIFIER WITH ONBOARD...

The Advance Acoustic MAP-305DA II is an integrated amplifier with high quality, on-board Analogue Devices Digital to Analogue converter (DAC). 2 x 100 watts of ...

Superfi Online
£599.95
+ more choices

Pioneer VSX818

Pioneer VSX818

The Pioneer VSX-818 includes our unique MCACC system which stands for Multi-Channel Acoustic Calibration At the touch of a button the MCACC will optimally tune ...

Hifix
£225.00
+ more choices

Cyrus PRE VS2

Cyrus PRE VS2

Given a top quality source the Cyrus Integrated 8 vs2 will paint a truly three dimensional acoustic picture with stunningly focused staging of acoustic images

Hifix
£700.00
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Cyrus 8VS2

Cyrus 8VS2

Given a top quality source the Cyrus Integrated 8 vs2 will paint a truly three dimensional acoustic picture with stunningly focused staging of acoustic images

Hifix
£900.00
+ more choices
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