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Saturday, November 18th 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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$1399.99

Qsc Plx3602 Professional Power Amplifier
"The PLX3602 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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$1059.99

Qsc Plx3102 Professional Power Amplifier
"The PLX3102 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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$499.00

Cerwin-Vega Cv-2800 Power Amplifier
"The Cerwin Vega CV-2800 is a rugged, 2U rackmountable, state-of-the-art power amplifier with a highly efficient tunnel cooling system to ensure reliable, cool running operation, 21-position detent level control knobs for easily repeatable settings, signa

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$399.00

Cerwin-Vega Cv-1800 Power Amplifier
"The Cerwin Vega CV-1800 is a rugged, 2U rackmountable power amplifier with a highly efficient tunnel cooling system to ensure reliable, cool running operation, 21-position detent level control knobs for easily repeatable settings, signal and clip indicat

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$151.50

Electro-Harmonix 44 Magnum 44W Guitar Power Amplifier
"The Electro-Harmonix 44 Magnum guitar amp provides 44W of clean and natural power and also delivers true amplifier overdrive at the turn of a knob. From your pocket to the stage, the E-H 44 Magnum is a perfect gigging and practice amp. Despite being desc

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$1999.00

Crown Xti 6002 Power Amplifier
"When you choose Crown's XTi 2 Series, you're choosing one of the most powerful and innovative amplifiers on the market today. With such innovations as a universal tracking switch-mode power supply and a fully integrated suite of speaker processing tools,

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$999.00

Crown Xti 4002 Power Amplifier
"When you choose Crown's XTi 2 Series, you're choosing one of the most powerful and innovative amplifiers on the market today. With such innovations as a universal tracking switch-mode power supply and a fully integrated suite of speaker processing tools,

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$499.00

Crown Xti 1002 Power Amplifier
"When you choose Crown's XTi 2 Series, you're choosing one of the most powerful and innovative amplifiers on the market today. With such innovations as a universal tracking switch-mode power supply and a fully integrated suite of speaker processing tools,

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$899.99

Peavey Ipr2 5000 Power Amp
"Part of Peavey's new IPR Series, the IPR2 5000 Power Amp utilizes an advanced design that allowed Peavey engineers to dramatically reduce weight (less than 7lb) while increasing output power, reliability, and thermal efficiency. The rackmount power amp h

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$1999.99

Qsc Pld4.5 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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$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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$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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$799.99

Qsc Rmx2450a Power Amplifier
"The RMXa Series amplifiers from QSC offer true professional-quality performance at an affordable price. The 2-rackspace model RMX2450a features output power of 450 watts per channel at 8 ohms. It has a compact chassis less than 16"" deep. RMXa amplifiers

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$399.99

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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$399.99

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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$999.99

Qsc Pld4.2 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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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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