Importance of Amplifiers

Today there are many categories of amplifiers used for multifarious purposes. In simple terms an amplifier picks up a weak signal and converts it into a strong one. It is widely used in several devices to boost electrical signals. Radios, televisions and telephones are a few examples to point out in this regard. There are innumerable other applications of amplifiers and it is not easy to enumerate all of them. Some of the common types of amplifiers are used in electronic gadgets and audio systems. These are also used in musical instruments and guitars. Apart from the above many other types of amplifiers like vacuum tube or valve, transistor, operational and fully differential amplifiers are also used for specific purposes. Video amplifiers are of diverse types. Oscilloscope vertical type and distributed type are the two commonly used ones in this context. Again there are microwave amplifiers which are categorized as traveling wave tube amplifiers and Kly strons. Then there are subwoofer amplifiers. They are nothing but amplifiers that are used on subwoofers which are usually found in cars and radios. Subwoofer amplifier use power to amplify low frequency sound waves. A lot of studies and research were undertaken to develop the science of amplification in the past decades and this device have become integral parts of many systems. Several branches of science and technology are making use of the device.

Bestseller No. 1
Fender Frontman 10G Electric Guitar Amplifier
  • 10 Watts
  • 1-6" Fender Special Design Speaker
  • One Channel
  • Controls: Gain, Over-Drive Select Switch, Volume, Treble, Bass
  • Other Features: 1/4" Instrument Input, 2-Band EQ, 1/8" Auxiliary Input Jack for Jam-Along with Media Player or CD, 1/8" Headphone Output Jack for Silent Practice, Closed-Back Design for Heavier Bass Response
Bestseller No. 2
VOX AP2BS amPlug 2 Guitar/Bass Headphone Amplifier
  • Connections: Headphone Out, AUX In
  • Power Supply: AAA batteries x 2
  • Dimensions: (W x D x H) 3.39 x 3.15 x 1.22" (86 x 80 x 31mm)
Bestseller No. 3
Fender Acoustasonic 15 – 15 Watt Acoustic Guitar Amplifier
  • The Acoustasonic 15's convenient dual front-panel inputs include a standard ¼" jack for an instrument and an XLR input for a microphone.
  • Experience 15 watts of volume through a 6" Fender speaker specially designed for enhanced high-frequency response.
  • Very portable and light weight for easy transport and conveniently has a headphone output for silent practice.
  • Enjoy the peace of mind that this amp is backed by Fender's 5 Year Transferable Warranty.
50%Bestseller No. 4
Donner Electric Guitar Amplifier 10 Watt Classical Guitar AMP DEA-1
  • 1. 10-Watt Electric Guitar Amplifier that provides explosive tone with intuitive controls.
  • 2. Use for electric guitar practice, street performance, karaoke with friends, band performance, outdoors playing.
  • 3. Controls: Gain, boost Select Switch, Volume, Treble,Middle, Bass.
  • 4. 1/4" Instrument Input, 3-Band EQ, 1/8" Auxiliary Input Jack for Jam-Along with Media Player or CD, 1/8" Headphone Output Jack for Silent Practice.
  • 5. The edge is surrounded by hard material, protecting the amplifier from damage and pad of rubber makes it stand safe and stable
24%Bestseller No. 5
ammoon Guitar Amplifier Portable Electric Guitar Amp 5 Watt Multi Effects Pedal Built-in 80 Drum Rhythms Support Tuner Tap Tempo Functions
  • Dual power supply choices: DC 9V power adapter(included) or 6 * AA batteries(not included, Best with Polaroid 9V Batteries), suitable for indoor and outdoor usage.
  • Equipped with dual 3" speakers inside, provides true tones and powerful sounds, portable and lightweight for guitar players.
  • Features 80 drum rhythms to jam along with tap tempo; 4 DRIVE models( Clean/Overdrive/Distortion/Metal) ,provide a gain range for every musical style.
  • 3 DSP effects (Chorus/Tremolo/Reverb) for you to create your own guitar tones; Built-in tuner to ensure your instrument is always in tune.
  • The 1/8" AUX input Jack for jam-along with media player or CD; with 1/8" headphone output jack for Silent Practice.

The application of electronic device are therefore boundless. Various technologies are adopted to put the principles to their optimum use. Consumers today are more familiar with audio amplifiers. There is therefore a general perception that all amplifiers are audio oriented. It is part and parcel of any audio system. Amplifiers are utilized to enhance or regulate the audio contents. In the early stages of its usage, the purpose was to control the volume of sound. But in the course of time, technology developed and the role of amplifier became more elaborate. Amplifier is now made use of not only to enhance the volume of sound but also to add clarity to the contents. Both vocal and instrumental outputs are regulated to offer comfortable noise level without diluting the contents. A listener can give accent to vocal contents in a programme or alternatively to the background music from instruments by adjusting amplifiers.

The importance of this one is now paramount. It is essential for shoppers to understand the significance of the device in a given application. But many of the shoppers may not be conversant with the physics or theory behind its practical applications. In the case of this, irrespective of the category the best source to gather valuable information is the internet. Exclusive websites devoted to these are to be pointed out in this context. Visitors to such websites will have the privilege to learn about various products and services available in the market. Highly subjective reviews about latest introductions are provided for the guidance of the consumers. Such reviews will help the shoppers to identify the right product. Online dealers offer competitive rates for latest products like hifi amplifiers, car amplifiers, and integrated amplifiers from among large collections of sophisticated products. At a time when people find little time to search extensively and to resort to shop hopping, exclusive websites are really helpful.

33%Bestseller No. 1
Yamaha R-S202BL Stereo Receiver
  • Advanced circuitry design
  • Bluetooth to your favorite streaming music services
  • 40 station FM/AM preset Tuning. Frequency Response : 10 Hz - 100 kHz (0 plus/ minus 0.5 dB / 0 plus/ minus 3.0 dB)
  • Brushed aluminum finish and simplistic design
  • Speaker selector for two systems
Bestseller No. 2
Fender Frontman 10G Electric Guitar Amplifier
  • 10 Watts
  • 1-6" Fender Special Design Speaker
  • One Channel
  • Controls: Gain, Over-Drive Select Switch, Volume, Treble, Bass
  • Other Features: 1/4" Instrument Input, 2-Band EQ, 1/8" Auxiliary Input Jack for Jam-Along with Media Player or CD, 1/8" Headphone Output Jack for Silent Practice, Closed-Back Design for Heavier Bass Response
8%Bestseller No. 3
Pyle Bluetooth Stereo Amplifier Receiver [Compact Home Theater Digital Audio System] with Wireless Streaming | FM Radio | MP3/USB/SD Readers | Remote Control | 200 Watt (PDA6BU)
  • Bluetooth for Wireless Music Streaming - Works with (iPhone, Android, Smartphones, iPad, Tablets, etc.)
  • FM Radio with LCD Display - ID3 Song Tag Readout - USB & SD Readers - USB Doubles as Device Charge Port
  • Aux (3.5mm) Input - (2) 1/4'' Mic Inputs, (2) Pair RCA Inputs, (1) Pair Output, (2) Pair Banana Plugs
  • Treble, Bass, Master, Mic Volume Adjustable - 'Repeat & Random' Audio File Functions - Folder File Search
  • Max Power Output: 200 Watt at 4 Ohm - Includes Remote Control and FM Antenna
1%Bestseller No. 4
Lepy Amplifiers Audio Component Amplifier, Black (LP-2020A Class-D)
  • UNIQUE APPEARANCE-All aluminum front-panel by precise CNC machining, all aluminum cover with sand blasting treatment, innovative circle-type power light.
  • FEATURES-Overvoltage protection(Over DC14.4V),short-circuit protection, time-delay circuit design to avoid momentary shock damage to speaker boxes.
  • State of the art design using surface mount components and advanced engineering for proven performance, reduced signal interference, and long operational life.
  • APPLICATION-Be suitable for ipad,cellphone,MP3 player,CD player, dataplay, computer, decoder,etc.
  • PRODUCT SPECIFICATION-Size(LxWxH):140x118x41cm,net weight:260g,input power: DC 12~13.5V 3A,output power:20Wx2RMS.
Bestseller No. 5
Home Audio Power Amplifier System - 2X120W Mini Dual Channel Mixer Surround Sound Stereo Receiver Box w/ RCA, AUX, Mic Input - For Amplified Speakers, PA, CD Player, Theater - Pyle PTA4
  • 2X120 WATT POWER: The Pyle Dual Channel Stereo Amplifier is perfect for your PA and home theater acoustic surround sound system. Gives you 2x120W power which can be used for multi speakers w/ 4 ohm impedance, enjoy high quality amplified audio
  • 4 INPUTS: This personal digital amp box supports various external sources - 3 pairs RCA audio input for tuner, CD player, tape deck, camcorder or VCR, 1/4" microphone IN, 1/4" headphone jack input. Also features a REC output for recording
  • PAGER/MIXING MODE: The mini integrated indoor AV receiver features pager and mixing switch. In pager mode, the signal from the microphone will override to auto talkover, use for hosting and meetings. Switch to mixing mode for a fun karaoke session
  • PUSH TYPE SPEAKER TERMINAL: The surround sound amplifying mixer device lets you easily connect speaker wires directly to the amplifier. The total speaker impedance must be at least 4 Ohm per channel at stereo mode
  • EQ CONTROLS: The improved professional compact bookshelf sound amplifier features crisp and responsive button for power switch and rotary knob controls for mic volume, balance, bass, treble, master volume, and input source
Bestseller No. 6
Fender Champion 20 - 20-Watt Electric Guitar Amplifier
  • Shape your sound with the EQ section (Bass + Treble) as well as dial in lush effects such as digital reverbs, chorus, vibratone and delay.
  • Jam along with your favorite tracks by simply plugging your MP3 player into the Auxiliary input and you instantly become part of the band and /or practice privately with the 1/8th headphone output jack that also mutes the speaker output.
  • With a turn of a knob, choose from clean to mean tones from the 17 various amp models that will to accommodate almost any genre of music.
  • Store extra cables or other small accessories with the open back cabinet. Voltage: 230 Volts EUR
  • Limited Warranty Included
Bestseller No. 7
Wireless Bluetooth Audio Power Amplifier - 300W 4 Channel Home Theater Sound Compact Stereo Receiver w/ USB, AM FM, 2 Mic IN w/ Echo, RCA, LED, Speaker Selector - For Studio, Home Use - Pyle PT272AUBT
  • 3.5mm network adapter wire powered subwoofer switch small tv smart iphone 4.1 dj voice hdmi phone mono antenna indoor auto radio watt amplify compact ipod bass tube signal pc supply automotive cord house transmitter sub
  • 6 INPUTS: The personal digital amp box supports SD / MMC card, USB, MP3, AM FM tuner, AUX, CD player, 2 microphone input w/ echo for karaoke or event hosting, RCA, AUX, and Bluetooth inputs
  • BLUETOOTH ENABLED: The integrated hybrid amplifier is equipped with Bluetooth for wireless music streaming. Works with today's latest devices including smartphone, tablet, laptop, computer, etc
  • A/B SPEAKER SELECTOR: The professional integrated stereo receiver has A/B speaker selector enabling you to choose b/w speaker set. Use either A or B speakers or both. Note that when it is turned on initially it uses both speakers as default
  • EQ CONTROLS: The sound amplifying device has crisp buttons for the audio sources and selectors, rotary knob for equalization and master volume adjustments. Includes remote control for distant audio adjustments and a power cable
Bestseller No. 8
Power Home HiFi Stereo Amplifier - 90 Watt Portable Dual Channel Surround Sound Audio Receiver w/ 12V Adapter - For Subwoofer Speaker, MP3, iPad, iPhone, Car, Marine Boat, PA System - Pyle PFA300
  • 90 WATT POWER: The Pyle Dual Channel HiFi Audio Amplifier gives your entertainment or PA system a boost! Offers low distortion & acoustically accurate audio reproduction. Supports speakers w/ 2-8 ohm impedance allows you to enjoy high-quality audio
  • CUSTOMIZABLE SOUND: It features tone & direct switch which allows adjustment of how much bass & treble get through to be amplified. By switching to direct the filters are removed from circuit & the signal coming in is amplified w/o any filtering
  • SUPPORTS MULTIPLE DEVICES:The professional class-T amp support various external devices. Connect android phone, iPhone, iPod & MP3 to the 3.5mm jack input & enjoy surround acoustic audio w/ the speaker. It also has microphone & AUX input for karaoke
  • EQ CONTROLS: This multi-purpose portable 2-channel compact home digital stereo receiver box features crisp buttons & rotary knob controls for audio adjustment. It also features a blue LED illuminated volume knob which also serves as a power indicator
  • Please refer the user manual below for better use
Bestseller No. 9
【Update】 2 Channel Stereo Audio Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116(with Power Supply)
  • Perfectly suited for your desktop or a smaller space in your home or office, digital amplifier is easy to connect to your audio system with no software to install or settings to change;
  • 100W RMS X 2(4 ohms, 20 Hz - 20 kHz, 0.04% THD), comes with 19V power supply, can drive 280watts(8 ohm), 320watts(4 ohm) speakers;
  • Simple compact design but practical and powerful; No pop, no audible noise, dead silent when nothing is playing through it;
  • Home small hi-fi integrated amplifier, Sturdy, Lightweight, Aluminum enclosed amp makes it perfect for projects and DIY;
  • Manufacturer-Direct, free lifetime technical support, and 18-month manufacturer's warranty. Feel free to contact us at customer@fosiaudioshop.com, we will reply to you within 8 hours;
Bestseller No. 10
RIOT 1100 Watts, Mosfet Monoblock Power Amplifier R1100M
  • POWER: Maximum Power Output of 1100 Watts at 2 Ohms into one channel. MAX power output of 550 Watts at 4 Ohms into one Channel. This amplifier is designed to run your subwoofer(s) giving them the power that they need to perform as they were meant to
  • HIGH LEVEL INPUTS: Speaker level inputs are commonly referred to as high-level inputs. Speaker level inputs will be used to connect the R1100M to your factory radio or an aftermarket radio that does not have low-level (RCA) inputs
  • LOW LEVEL INPUTS: Line level inputs, also known as RCA inputs or low-level inputs, use RCA interconnect cables to link the R1100M with the source unit. Most aftermarket radios have multiple pairs of RCA outputs that can connect to multiple amplifiers
  • LOW-PASS CROSSOVER: A low-pass filter is an electronic circuit that removes all the notes below the filter's frequency setting. You will use the Low-pass filter to primarily keep high notes out of your subwoofer(s)
  • VARIABLE BASS BOOST: Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it
Bestseller No. 11
Fender Mustang I V2 20-Watt 1x8-Inch Combo Electric Guitar Amplifier
  • With a turn of a knob, choose from clean to mean tones from the 17 various amp models that will accommodate almost any genre of music.
  • Shape the on-board amp models 'on the fly' or dig deep and edit them with your computer using the included Fender FUSE software to further alter the included effects such as reverb, delay/echo, tremolo, phaser and many more.
  • Jam along with your favorite tracks by simply plugging your MP3 player into the Auxiliary input and you instantly become part of the band and /or practice privately with the 1/8th headphone output jack that also mutes the speaker output.
  • Capture moments of inspiration and build songs using the included Ableton Live Lite 8 Fender Edition studio quality recording software compatible with either MAC or PC, Controls:Gain, Volume, Treble, Bass, Master, Preset Select, Modulation Select, Delay/Reverb Select, Save Button, Exit Button, Tap Tempo Button
  • Limited Warranty Included
Bestseller No. 12
Fender Rumble 25 v3 Bass Combo Amplifier
  • Expore bass tones from classic gritty growl to slap-worthy modern punch with the newly-developed overdrive circuit and switchable contour controls
  • A beefy 25 watt power amp and ported speaker enclosure pumps volume and deep bass response.
  • Practice privately with the 1/4" headphone output jack that also mutes the speaker output.
  • Jam along with your favorite tracks by simply plugging a MP3 player into the 1/8" Auxiliary input jack and instantly become part of the band.
  • Limited Warranty Included
Bestseller No. 13
Pioneer Bluetooth Audio Component Receiver Black (SX-10AE)
  • Analog discrete direct energy 2Ch amplifier
  • 100 W per Channel (6 ohms), 45 W per Channel (8 ohms)
  • Frequency response: direct 10 hz-100 kHz, +1 dB/-3 dB
  • Bluetooth Wireless Technology (Ver. 4.2, Profile: A2DP/AVRCP, Codec:SBC/AAC)
  • AM/FM tuner with 40 station presets
Bestseller No. 14
Kinter K2020A+ Limited Edition Original Tripath TA2020-020 Class-T Hi-Fi Audio Mini Amplifier with 12V 5A Power Supply Black
  • Original Tripath TA2020-020 amplifier chip provides efficient, powerful sound
  • Economical price and tremendous performer - LIMITED SUPPLY
  • Compact size makes this amplifier great for projects and DIY audio applications
  • 3.5mm input and Gold Plated RCA connectors for superior signal conductivity
  • 12 Volt 5 Amp power supply included
8%Bestseller No. 15
Sawtooth ST-AMP-10-KIT-1ST-AMP-10-KIT-1 10-Watt Electric Guitar Amp with Pro Series Cable and Pick Sampler
  • Total Output Power (RMS): 10W RMS @ 4Ω
  • Speaker: 6.5"
  • Controls: Volume, Gain, Drive; Master EQ: Treble, Middle, Bass
  • Jacks: Input- 6.35 Mono Jack, Headphones- 6.35 Stereo Jack

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