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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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Sony TA FE370 Silver 2x70W Amplifier

Sony TA FE370 Silver 2x70W Amplifier

Headphone socket / Remote control (supplied). 2x 70w (4 ohms) integrated amplifier. 5 audio inputs. Built in phono equalizer amplifier (moving magnet). Tone controls ...

 Popcorn Home Shopping c/o eDirectory
£148.50
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Pioneer VSX1017S 1080p Ready Advanced MultiChannel...

Pioneer VSX1017S 1080p Ready Advanced MultiChannel...

Multi-Channel AV Receiver. 1080p Ready. 7 Channel. Phase Control Surround Reciever. Front Stage Surround Advance.

 Digital Direct
£329.01
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Sony STRDE598B

Sony STRDE598B

STRDE598B - Sony STRDE598 Dolby Digital Receiver - Black

 Digital Empire Online
£149.00
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Pioneer VSX918VS Silver 5 Channel AV Receiver with...

Pioneer VSX918VS Silver 5 Channel AV Receiver with...

Free Mainland UK Delivery Only - Pioneer VSX918VS Silver 5 Channel AV Receiver with HDMI, iPod Digital and USB-in Main Features       ...

 Electro Centre
£324.00
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NAD C715 Receiver

NAD C715 Receiver

The C715 combines all your favorite music sources into one very compact box. A sensitive high performance FM/AM tuner and a full function CD Player are included. ...

 Digital Connexions
£279.00
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NAD T755 AV Receiver

NAD T755 AV Receiver

The NAD T755 is heir to many generations of award winning NAD designs. This exceptional pedigree is evident in both the look and the feel of the T755, and it is ...

 Digital Connexions
£749.00
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Yamaha DSP-AX463 Digital Home Theatre Amplifier

Yamaha DSP-AX463 Digital Home Theatre Amplifier

5.1-Channel Digital Home Theatre Amplifier

 Digital Connexions
£295.00
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NAD C355BEE GPT Integrated Amplifier

NAD C355BEE GPT Integrated Amplifier

The C355BEE is the latest in NAD?s range of affordable, yet very high performance Integrated Amplifiers. Building on the strengths of our highly acclaimed C352 ...

 Digital Connexions
£425.00
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Yamaha DSP-AX563 Digital Home Theatre Amplifier

Yamaha DSP-AX563 Digital Home Theatre Amplifier

Yamaha DSP-AX563 7.1-Channel Digital Home Theatre Amplifier in Black

 Digital Connexions
£395.00
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Yamaha DSP-AX763 Digital Home Theatre Amplifier

Yamaha DSP-AX763 Digital Home Theatre Amplifier

The Yamaha DSP-AX763 7.1 Home Cinema Amplifier has an improved YPAO system that automatically selects the crucial frequency bands for the listening room, and adjusts ...

 Digital Connexions
£495.00
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Harman/kardon HK 3390 FM/AM Stereo Receiver 80Wx2

Harman/kardon HK 3390 FM/AM Stereo Receiver 80Wx2

HK 3390 2 x 80W Stereo Receiver The HK 3390 was born to make beautiful music and, like all specialists, it?s very good at what it does. It features high-current, ...

 Digital Connexions
£300.00
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Denon AVR1708S AV Surround Receiver with HDMI...

Denon AVR1708S AV Surround Receiver with HDMI...

AV Surround Receiver. HDMI inputs with 1080p capability. Compressed Audio Restorer. Deep colour 30/36 bits colour depth.

 Digital Direct
£189.01
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Pioneer VSX1018AHK Black 7 Channel AV Receiver with...

Pioneer VSX1018AHK Black 7 Channel AV Receiver with...

Free Mainland UK Delivery Only - Pioneer VSX1018AHK Black 7 Channel AV Receiver with HDMI, HD Audio Decoding and KURO LINK Main Features       ...

 Electro Centre
£448.00
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NAD PP2 Pre-Amplifier

NAD PP2 Pre-Amplifier

Many of today's stereo and AV amplifiers and receivers have either eliminated the phonograph input altogether, or included a low cost - and low performance - circuit ...

 Digital Connexions
£55.00
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NAD T975 Power Amp

NAD T975 Power Amp

NAD has a well-deserved reputation for producing amplifiers with extraordinary performance and always at an affordable price. The T975 keeps this tradition alive ...

 Digital Connexions
£1349.00
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529 results | Page 1 of 35 | next page