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Monday, October 22nd 2018.

Power Amplifiers

Guitar Musician has a full compliment of power amps and amplifiers by the biggest brand name manufacturers in the music industry. Our lineup includes guitar amps, bass amps, acoustic guitar amps, keyboard amps as well as electric guitar amps and live sound power amplifiers all for the best prices on the net. Famous names like Fender, Peavey, Crate, Marshall, Behringer, Line 6, Roland, Yorkville, SWR, Ampeg, Hiwatt and others.

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$1770.00

Qsc Cx602v Stereo Power Amp
"The QSC CX602V power amp is a two-space stereo power amp with 550W output per channel with both outputs driven at 8 Ohms. It features 1-dB detented gain controls for fast and accurate gain settings,active inrush limiting that eliminates AC inrush current

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$1090.00

Qsc Cx302v Stereo 120V Power Amp
"The CX302V is designed to meet the needs of sound contractors. Featuring the PowerLight switch mode power supply and features like gain control security panels, the CX302V allows you to set it and forget it. All models feature DataPorts for integration w

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$1600.00

Qsc Cx254 4Ch Power Amp
Save BIG when you buy today!

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$129.95

Gemini Xga-2000 Power Amplifier
"The XGA-2000 amplifier offers clean, reliable power in a durable, lightweight enclosure. If you demand professional amplification performance, the XGA-2000 is perfect for delivering pure, consistent wattage night after night.With 2000 watts of Instant Pe

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$179.95

Gemini Xga-4000 Power Amplifier
"The XGA-4000 amplifier offers clean, reliable power in a durable, lightweight enclosure. If you demand professional amplification performance, the XGA-4000 is perfect for delivering pure, consistent wattage night after night.With 4,000 watts of Instant P

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$149.95

Gemini Xga-3000 Power Amplifier
"The XGA-3000 amplifier offers clean, reliable power in a durable, lightweight enclosure. If you demand professional amplification performance, the XGA-3000 is perfect for delivering pure, consistent wattage night after night.With 3000 watts of Instant Pe

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$349.99

Peavey Ipr2 2000 Power Amp
"IPR2 power amplifier, designed for years of reliable, flawless operation under rigorous use. The groundbreaking IPR2 series utilizes an advanced design that allows Peavey engineers to dramatically reduce weight while increasing output power, reliability

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$449.99

Qsc Rmx850a Power Amplifier
"The RMXa Series amplifiers from QSC offer true professional-quality performance at an affordable price. The 2-rackspace model RMX850a features output power of 185 watts per channel at 8 ohms. It has a compact chassis less than 16"" deep. RMXa amplifiers

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$1499.99

Qsc Pld4.3 Multi-Channel System Processing Amplifier
"The QSC PLD Series represents a revolutionary advancement in amplifier technology and innovation. Designed specifically for the needs of portable and production sound system users, PLD provides efficient, robust and extraordinarily high fidelity power to

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$2699.99

Qsc Pl380 Powerlite Amplifier
"The PowerLight 3 Series is designed for the most demanding live audio users, whether in touring rigs or fixed installations. The most requested features of the PowerLight 2 series have been upgraded to deliver ""the ultimate analog amplifier"", while the

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$899.99

Radial Engineering Headload Guitar Amp Load Box 16 Ohms
"The Headload is a combination load box and attenuator that is capable of handling up to 130-watts RMS of continuous power and peaks of 180 watts. Inserted between the head and cabinet, it allows the guitar amp to be driven hard while reducing the output

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$899.99

Radial Engineering Headload Guitar Amp Load Box 8 Ohm
"The Headload is a combination load box and attenuator that is capable of handling up to 130-watts RMS of continuous power and peaks of 180 watts. Inserted between the head and cabinet, it allows the guitar amp to be driven hard while reducing the output

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$1600.00

Qsc Cxd4.2 Multi Channel Dsp Amplifier
"Designed for System Integrators, CXD Series Processing Amplifiers represent a revolutionary advancement in technology and innovation. Featuring Flexible Amplifier Summing Technology (FAST), advanced DSP and loudspeaker management, next-generation Class D

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$499.99

Qsc Gxd 4 Professional Power Amplifier
"Lightweight, powerful and affordable are the chief defining characteristics of the QSC GXD series amplifiers. The GXD 4 is sure to become a favorite with bands, DJs and sound reinforcement professionals of all kinds.High peak output power with up to 1600

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$349.00

Rocktron Velocity 100 Ltd Guitar Rack Power Amp
"The Velocity 100 LTD was designed to provide great flexibility and high reliability. This single-rackspace amplifier provides 55 watts of power per channel into a 4 ohm load, or 40 watts per channel into an 8 ohm load.The Velocity 100 LTD utilizes therma

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$599.00

Crown Xls2502 775W Power Amp With Onboard Dsp
"The XLS Series has been a popular sound reinforcement solution since its introduction. It is aimed at the working musician who needs reliability, affordability and quality in a power amplifier. The XLS2502 is part of the latest generation of XLS amplifie

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Power Amplifiers - Practical Uses

One important concept in the age of electronic music is the use of the power amplifier. Amplifiers are needed to send the sound created by an instrument out into the air where an audience or the player can hear it. In order to accomplish this, amplifier systems have been invented. There are dozens of different kinds of amplifier systems, from those found in instruments to those found in stereos and public announcement systems. Specific instruments often have an amp that is designed for them, such as a guitar amp, a bass amp, or a keyboard amp.

One of the big differences in each of these kinds of amps is the power it uses. The power is located in the head of the amp, and the places that generate the power used for the amplification system are known as power amps.

Audio power amps are included in combo amps, along with everything else. The power produced is measured in watts, which is the unit used in many electric functions. The more range or power that is needed, the greater the wattage in the power amplifier. The result might be called a high power amplifier. This is useful to know for those musicians who prefer to design their own amplification systems. There are also several major types of audio power amplifiers. Some of the more commonly used are the stereo power amplifier, the mono power amplifier, the solid state power amplifier and the vacuum tube power amplifier just to name a few.

Measuring the power used by amps can be tricky, as there is not a proportional measurement in the power output and the decibel level (dB). Decibels are used as measurements (for the purpose of music) of acoustics, although they also apply to electric functions. Decibels are very small units, and one decibel is roughly equivalent to the smallest change in sound that a human can perceive.

Simply put, doubling the wattage of the power output in power amps will not double the decibel level. Instead, increasing the wattage by two times will increase the decibel level by 3. This is the case no matter what wattage you are doubling, be it 300W to 600W, or 100W to 200W. It is always constant.

For the musician, the measurement of the power amp is important as it directly relates to how well the instrument will be heard over other systems. Most soundboards will include equalization controls which compensate for electronic instruments which require greater power amps, such as keyboards and even basses. As a mid-range instrument, guitar amplifiers do not require such a high power output. However, levels on the power amp of the amplifier hooked up to the guitar need to be adjusted upwards so that the guitar, including solos and rhythms, can be heard over the other instruments. Often, guitar players find that the power setting should create a +3dB in comparison with the other instruments.

Understanding the function of power amps is essential to musicians who play in bands. The power amplifier is what will produce the electric energy necessary for an instrument such as the guitar to be heard over keyboards and drums, without the instruments drowning each other out. Amps should be purchased according to the style of music that you play, and the venue you play in.

 

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