brands

attributes.Features

attributes.Amplifier_Type

attributes.ProductType

attributes.Rated_Power_Output

attributes.Output_Channels

attributes.Output_Power

attributes.Frequency_Response

attributes.Operating_Voltage

attributes.Weight

attributes.Depth

attributes.Gain

attributes.Height

attributes.Maximum_Frequency_Response

attributes.BuiltInPagingChime

attributes.Maximum_Operating_Voltage

attributes.RackMount

attributes.Minimum_Frequency_Response

attributes.Minimum_Operating_Voltage

attributes.StandardsApprovals

attributes.Width

Bose 400W 4 Channel Power Amplifier 20 kHz

Bose 600W 4 Channel Power Amplifier 20 kHz

Bose 4 Channel Power Amplifier 20 kHz


A power amplifier, sometimes called a power amp or hi-fi amplifier, is an electronic devices that takes a low power audio signal and reproduces it at a much stronger level. For example, the signal from a microphone or instrument is amplified to a level that is strong enough to drive speakers, sound systems or headphones. They can also provide power to passive speakers.

In the most basic terms, power amplifiers increase the power of a signal, making it stronger that the original input. Power amplifiers can also provide power to passive

speakers.

**Classes:**

• Class A power amplifiers conduct during the full cycle or have a conducting angle of 360 degrees. These amplifiers are the simplest and most common devices because of low signal distortion level.

• Class B power Amplifiers, unlike Class A, work for only half of each input cycle, which means they have a conducting angle of 180 degrees. In simple words, these amplifiers amplify only half of the input cycle. On paper, that probably sounds unusable, but in reality, it's quite different. A Class B amplifier consists of a positive and negative transistor, which run alternatively, amplifying the positive and negative cycle respectively. In the end this is combined to form a full output cycle.

• Class AB is the mixture of both classes, so the conduction angle is somewhere around 180 and 360 degrees, commonly shown as 270 degrees.

• Class C power amplifiers are the most efficient but have the lowest operating cycle and linearity. It is heavily biased and stays on for less than half of an input cycle. It has a conducting angle somewhere around the 90 degrees. This results in the high efficiency mentioned above but can also cause high distortion in the output signal. Class C amplifiers are usually not used as audio amplifiers. They can be used in certain radio frequency applications where efficiency is key.

• Class D power amplifiers aren't always considered among the four mentioned above. They are a non-linear switching amplifier in which two transistors function as switches instead of linear gain devices. Class D power amplifiers convert the analogue input signal into digital via pulse width modulation, pulse density modulation or something similar, before being amplified. The end result is a cycled output with high efficiency and gain, alongside minimal distortion. Although this type of power amplifier was originally used to control motors, they are now used as audio power amplifiers as well.



Amplifiers

Audio & Video

Computing & Peripherals

1033635655

1141188117

1370019343

1419482333

1492797549

1743139940

1852296854

1852297226

1858264520

1950438482

2099506070

2228588789

2277269800

242923860

2491196911

2600241038

2646997557

2892976822

2911534392

3242846696

3377167779

3437032725

3458730773

3710679228

3893962904

3986300536

3986300631

4092587564

482906937

517998920

607105215

630592386

803858637

836591139

1337321341

1713511683

1953764780

215561600

2212326362

245755136

2602282426

2675376924

2694081498

2801626310

2854130884

3031041232

3141911626

3359984903

3479376779

3503142162

3537785963

3606191116

3676807775

3696367266

3792969765

3841872179

3871454867

3929125222

3980878867

4085774260

4185424055

4239710393

650378987

730636658

Development Tools & Single Board Computers

Raspberry Pi, Arduino, ROCK, STEM Education & Development Tools

Electronic Components, Power & Connectors

Engineering Materials & Industrial Hardware

Pneumatic Counters, Logic Controllers & Timers

Electronics Cleaners & Protective Coatings

Buy Bose Amplifiers. Browse our latest Bose Amplifiers offers. Fast and hassle free delivery.

Bose Amplifiers | RS


We’ve sent an email to the address you provided.

Please **click the verification link** provided to confirm your address.

**Didn’t receive anything?** Please check your spam or press "Back" below to try again.



Chauvin Arnoux P01298071 Hard Case Hygrometer Sound Level Meter

Bose Amplifiers

5 Products showing for Bose Amplifiers

Popular Searches

Related links