Guitar Musician has a full compliment of keyboard amps, and monitors 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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799.00 ![]() Motion Sound PRO-3X Rotary Horn Amplifier "The Motion Sound PRO-3X Rotary Horn Amplifier lets you add a real rotary horn to your existing keyboard amplification and hear the rich 3-dimensional sound that only a real rotary horn can provide!A proprietary class A, AB, B variable mode FET pre-amp pr MORE... | 279.00 ![]() Roland Roland KC-60 Keyboard Amplifier "With the Roland KC-60 Keyboard Amplifier, you get a whole lot of flexibility for your dollar in this scaled-down model that retains that sought-after KC sound. The amp's 40W power section drives a 10" speaker through 3 separate channels that inc MORE... | 69.99 ![]() Behringer KT108 ULTRATONE 15 Watt Keyboard Amplifier "The Behringer Ultratone KT108 is a super-compact 2-channel, 15-Watt keyboard amp. It's perfect for keyboards, vocals, drum machines, or wherever a small sound system is needed. Behringer's VTC Virtual Tube Circuitry lends the KT108 tube-like soun MORE... | 399.00 ![]() Roland Battery-Powered Keyboard Amplifier "With the KC-110 stereo keyboard amplifier, Roland adds another great amp to its lineup as well as another "World's First" title to its pedigree. The Roland KC-110 is the first fully stereo, pro-quality keyboard amp that can be powered by ei MORE... |
649.00 ![]() Barbetta SONA 31C Keyboard Combo Amplifier "The Barbetta SONA 31C Keyboard Combo Amplifier delivers 225W continuous RMS power from 2 - 8" woofers and a 5" horn tweeter - and it weighs only 35 lbs. Like all Barbetta amps, the SONA 31C keeps it together on the low end, has bell-like clarit MORE... | 398.99 ![]() Peavey KB 4 75W 1x15 3-Channel Keyboard Amplifier "The Peavey KB 4 Keyboard Amp and PA system has separate inputs on each channel and can easily handle voice, microphones and other instruments, including acoustic and electric guitars, drum machines and backing machines, as well as CD and DAT players. Oth MORE... |
Keyboard Amps
The advent of the keyboard meant a revolution in the amplification industry. Until keyboard amps came into demand, the main amplification process in music was through various guitar amps. However, piano players who were interested in incorporating a larger sound through the electronic keyboard soon realized that using amps designed for guitar simply did not work, for several reasons:
The keyboard has a significantly larger range than the guitar. The keyboard emulates the piano, in its most basic incarnation, and so must be able to produce the whole range of notes that a piano can.
Keyboard range is further extended through the use of different effects, anything from sound effects to the duplication of sounds from other types of instruments.
In order to effectively reproduce the sound of the keyboard, a lot more power is needed than can be gained through a guitar amp.
Keyboard players often use more than one keyboard in a performance, in order to produce a range of sounds and effects. Most amps designed for keyboards will have the capacity to hook up to several different instruments.
In order to fulfill these needs, the keyboard amp was invented. These amps often look like those used by guitar players, but have a wider frequency response. This response is due to the fact that the amps use more power and have more robust speakers than guitar amps (the cabinet of a keyboard amp will contain at least three types of speaker, in order to reproduce sounds from across the spectrum).
The makeup of a keyboard amp
Like other types of amp, keyboards use systems with two main components, the head and the cabinet. The head houses the electronic workings, while the cabinet houses the speakers.
In the Head
Preamp The preamp receives the signal from the instrument and manipulates it to the desired sound.
Power Amp The power amp drives the sound out through the speakers.
In the Cabinet
The cabinet is the area in which a keyboard amp is most likely to contain equipment that a guitar amp will not. Speakers contained in keyboard amps are more varied, as they need to be able to produce a wide range of tones.
Tweeters will produce the higher frequencies found both in the notes of the piano and among the other instruments that the keyboard can imitate.
Woofers will help produce notes in the lower ranges.
Mid-range are the speakers typically found in guitar amps. They are used to produce the sounds most often heard by the human ear.
Many keyboard amps will have a combination of speakers housed within their cabinet, often depending on the experienced musician’s desired sound. While many can be purchased as one unit, most dedicated keyboardists will find that they prefer to purchase the components separately and put them together. For many, this will include not only the speakers but also the electrical components of the amp such as power amps

Finger weights
available in 10 finger
and 5 finger standard
and universal models.