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Tuesday, December 12th 2017.

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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$2800.00

Qsc Cxd4.5 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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$599.99

Peavey Ipr2 3000 Dsp Power Amp
"Power and weight are two chief considerations when selecting a power amp, and the Peavey IPR2 3000 power amplifier is impressive in both of those categories. At just over eight pounds, its 1750 watt bridged two ohm output is impressive indeed.IPR2 power

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$799.99

Qsc Gxd 8 Professional Power Amplifier
"Lightweight, powerful and affordable are the chief defining characteristics of the QSC GXD series amplifiers. The GXD 8 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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$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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$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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$299.00

Crown Xls1002 2-Channel 350W Power Amplifier 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 XLS1002 is part of the latest generation of XLS amplifie

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$1349.99

Engl Tube Poweramp E810/20
"This amazing stereo tube poweramp with EL84 power tubes delivering 2 x 20 watts with two poweramp channels left and right comes in a very compact unit through one rack unit height only. Absolute authentic tube sound due to fully tube technology featuring

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$499.00

Crown Xls2002 2-Channel 650W Power Amplifier 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 XLS2002 is part of the latest generation of XLS amplifie

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$229.00

Art Sla1 Studio Power Amplifier
"The ART SLA1 Studio Power Amplifier gives you the level of quality needed for your studio monitoring. With a super-wide frequency response (10Hz-40kHz), thermal-dependent cooling system, extremely low-noise electronics, and low-profile single rackspace d

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$969.99

Qsc Plx1802 Professional Power Amplifier
"The PLX1802 power amplifier is an excellent choice for users who need to drive up to four loudspeakers from each amplifier channel (2-ohm loading), or when extremely high power bridged mono operation is required. Features built-in subwoofer processing, f

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$1099.99

Qsc Plx2502 Professional Power Amplifier
"The PLX2502 power amplifier is an excellent choice for users who need to drive up to four loudspeakers from each amplifier channel (2-ohm loading), or when extremely high power bridged mono operation is required. Features built-in subwoofer processing, f

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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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