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Saturday, August 19th 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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$369.00

Art Sla-2 Studio Power Amplifier
"Toroidal transformer-based amplifier delivers 200W of clear power to reproduce your mixes with near-pinpoint accuracy. The ART SLA-2 Studio Power Amp has the advanced SmartFan cooling system; XLR, Euroblock, and 1/4"" inputs; XLR and 1/4"" outputs, and a

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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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$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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$2499.99

Engl Tube 100W Stereo Poweramp
"A new dimension of power, 2 built-in rack units featuring the Engl sound trademarks to discover new sonic experiences. 100 watts per side, 6L6GC driven including adjustable Depth Boost for low punch sounds and eternal headroom to power your rack system.G

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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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$1524.99

Engl E840/50 Tube 2X50w Stereo Poweramp
"The Engl 840 is one very impressive 2 x 50 watt tube power amp. If you like the rich harmonic tone of 5881 power amp tubes, the 840/50 should be your first choice. It delivers a perfect match of attack & power to give your rack system the headroom that i

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$399.99

Qsc Gx5 Stereo Power Amplifier
"The QSC GX5 Stereo Power Amplifier is ideal for professional entertainers who require maximum performance and portability on a limited budget. QSC designers, headed by Pat Quilter, have optimized output and appearance of the rackmountable GX5 while reduc

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$299.99

Qsc Gx3 Stereo Power Amplifier
"The QSC GX3 Stereo Power Amplifier is ideal for professional entertainers who require maximum performance and portability on a limited budget. QSC designers have optimized output and appearance of the GX3 power amp while reducing raw material cost and we

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$499.00

Electro-Voice Q44 Ii Power Amplifier
"The Q44 II power amp from Electro-Voice provides 2 x 450W @ 4 ohms or 2 x 650W @ 2 ohms. It's an excellent choice for small tops and utility loudspeakers, such as ZX1, SX Series, or EVID Series.Dynamic Headroom:Electro-Voice's philosophy is that tonal pe

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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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$299.99

Phonic Max 1600 Power Amplifier
"The Phonic MAX 1600 Power Amplifier delivers a whopping 450W of power at 4 ohms (stereo)-900W in bridge mono mode-making it well-suited for larger venues. Input to the MAX 1600 amp is achieved via XLR or 1/4"" jack, and output is achieved either through

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$349.99

American Audio Vlp-1500 Power Amplifier
"The American Audio VLP-1500 power amp gives you power to spare at a stunningly low price. The VLP-500 is rated at 750W RMS per channel at 4 ohms, 500W RMS per channel at 8 ohms, and 1,500W RMS bridged mono at 8 ohms. Frequency range is 20Hz-20kHz. TRS an

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$799.00

Cerwin-Vega Cv-5000 High Performance Professional Power Amplifier
"This field proven amp design is the most muscular yet in the CV Series and is a perfect match for Cerwin-Vega's largest and loudest Passive Speakers and Folded Horns. A true powerhouse, the CV-5000 is capable of driving the most demanding speaker applica

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$699.00

Crown Xti2002 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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$919.00

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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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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