Keyboard Combo Amp – Basics of Instrument Amps Explained

Look inside a Keyboard Combo Amp and other Instrument Amps! Learn the basics of amplifiers; understand the components, features and aspects of instrument amplifiers.

Different types of Instrument amplifiers are available to faithfully reproduce sound for that particular musical instrument.

Instrument amplifiers are available to amplify the sound, and to emphasize certain frequencies, without losing any of the tonal quality of that particular instrument.

So, using a guitar amp or a bass amp or any other acoustic instrument amplifier for your digital piano-keyboard, will not give you the best possible output.

Basics of Amplifiers

Here are some things you should know about amplifiers in general, so that you can appreciate their unique aspects.

Components of an Amplifier

Bass amplifiers and electric guitar amplifiers are used in separate "amplifier head" and separate speaker cabinet configuration, which is not the case with a Keyboard amp. A Keyboard amp on the other hand is a Combination ("combo") amplifier.

As the name suggests, a keyboard combo amp includes many things together.

It will include a preamplifier, a power amplifier, tone and effects controls, and one or more speakers in a cabinet.

Size of a Keyboard Amp

The size of the keyboard amp usually determines its power, and accordingly its suitability. For club performances, you would use a larger combo amp, with one 12 inch speaker or may be multiple 10 to 12 inch speakers.

On the other hand if you want a keyboard amp for rehearsal or for just warm-up purposes, then a smaller one will suffice. A keyboard amplifier with one 8inch or 10inch speaker will be suitable for such practice sessions.

Accentuating Certain Frequencies

Instrument amplifiers are designed to emphasize certain frequencies, to add additional tonal coloration to the original sound signal.

For instance, an electric guitar amplifier adds a forceful intensity to the guitar sound, with its high quality distortion effects.

Exceptions here are keyboard amplifiers and acoustic instrument amplifiers which do not add any coloration and give out a relatively flat frequency response.

Conclusion

Knowing about the characteristics of different amplifiers will help you better understand your amplification needs, when it comes to public performances or practice sessions. If you are a keyboard player, you will now realise why it makes sense to buy a dedicated Keyboard Combo Amp.

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