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Thursday, December 12th 2019.

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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2120.00

Qsc Cx902 Stereo Power Amp
"The QSC CX902 is a two-space lightweight power amp equipped with exclusive PowerLight switch-mode power supply technology for high performance and compact size. It is a 21lb powerhouse that will easily run a pair of full range professional speaker cabine

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2670.00

Qsc Cxd4.3 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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1770.00

Qsc Cx702 Stereo Power Amp
Save BIG when you buy today!

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1560.00

Qsc Cx502 Stereo Power Amp
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799.99

Yamaha Px10 Power Amplifier
"This advanced power amplifier combines intelligent processing with high output to meet the requirements of a vast range of sound reinforcement environments. Boasting 1,000W x 2 at 8 ohms and 1,200W x 2 at 4 ohms, the PX10 has plenty of punch to satisfy y

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449.99

Yamaha Px3 Power Amplifier
"This advanced power amplifier combines intelligent processing with high output to meet the requirements of a vast range of sound reinforcement environments. Boasting 300W x 2 at 8 ohms and 500W x 2 at 4 ohms, the PX3 has plenty of punch to satisfy your p

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599.99

Yamaha Px5 Power Amplifier
"This advanced power amplifier combines intelligent processing with high output to meet the requirements of a vast range of sound reinforcement environments. Boasting 500W x 2 at 8 ohms and 800W x 2 at 4 ohms, the PX5 has plenty of punch to satisfy your p

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849.99

Dynacord L1800fd Dsp Powered 2X950w Amplifier
"Providing two channels of 950W, Class-D output @ 4 Ohms, this professional live performance DSP amplifier features FIR Drive technology, true 2 Ohm stability and rock-solid reliability. The Dynacord L1800FD boasts intuitive system control software, which

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699.99

Yamaha Px8 Power Amplifier
"This advanced power amplifier combines intelligent processing with high output to meet the requirements of a vast range of sound reinforcement environments. Boasting 800W x 2 at 8 ohms and 1050W x 2 at 4 ohms, the PX8 has plenty of punch to satisfy your

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1199.99

Synergy Syn-5050 2X50w Stereo Rack-Mount Tube Guitar Power Amps
"Steven Fryette's all-tube power amplifiers are legendary and have been powering the rigs of some of the most well-known guitarists for decades. That's why the designers were so excited to tap into the man's knowledge in crafting the SYN-5050. This single

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699.00

Koch Atr4502 90W Stereo Rack-Mounted Tube Guitar Power Amp Black
"The ATR4502 is the first 2 x 45W stereo or 1 x 90W mono 19 rack mount power-amp for guitar on the market that offers real vintage tube tone in combination with only 1U of height and weighing but 12 lbs. The ATR4502 is the preferred amplifier of leading m

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399.00

Orange Amplifiers Pedal Baby 100 Power Amp Orange
"The Orange Pedal Baby 100 is a 100W class A/B power amplifier, designed for the touring musician. Neutral-sounding but still flattering, its perfect for guitarists running pedalboards, modelers or digital processors. Light, compact and built for the road

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349.00

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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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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1159.99

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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899.00

Drawmer Da6 Balanced Distribution Amplifier
"The Drawmer DA-6 is a six channel stereo (or twelve channel mono) distribution amplifier featuring XLR balanced inputs and outputs with optional transformer balancing where remote amplifiers and recorders are fed from separate power supplies. The distri

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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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