Microphones and pickups for acoustic instruments: the ultimate guide

What is a microphone for an acoustic instrument?

Amplifying an acoustic instrument without altering its natural tone is a real challenge. Unlike a standard vocal microphone, a microphone for an acoustic instrument has to pick up the vibration of the instrument itself, whether it is a guitar, a violin, a double bass or even a piano.

There are several technologies, each with its advantages and limitations. Understanding these differences will help you make the right choice from our range of microphones and pickups for instruments.

The different types of pickup

The piezoelectric pickup

This is the most widespread technology, especially on electro-acoustic guitars. The piezo pickup is generally placed under the bridge saddle and turns mechanical vibrations into an electrical signal. Its main advantage is its resistance to feedback, which makes it ideal for the stage. On the other hand, it can sometimes produce a slightly “plasticky” sound if the quality of the pickup is not up to scratch.

The miniature condenser microphone

Fitted inside the body of the instrument, this type of microphone picks up the sonic atmosphere of the instrument in a very natural way. The sound obtained is rich and faithful, close to that of a studio recording. The downside: greater sensitivity to feedback at high volume.

The contact pickup

Contact pickups, such as those from the Ischell brand, stick directly onto the soundboard. They pick up surface vibrations with great fidelity and suit a multitude of instruments: guitar, violin, cello, oud, cajon, harp and many more. Their versatility makes them an excellent choice for multi-instrumentalists.

The hybrid system

Some systems combine two technologies, for example piezo + condenser microphone, with a preamp that lets you blend the two. It is the most complete solution, offering both the precision of the piezo and the warmth of the internal microphone.

Which pickup for which instrument?

Acoustic and classical guitar

For an acoustic guitar, the choice depends on how you will use it. On stage with a band, a piezo will be more practical. Solo or in a small ensemble, a contact pickup or an internal microphone will better reproduce the nuances of your playing.

Violin, viola and cello

Bowed string instruments need pickups that can reproduce the harmonic richness of the bow. Contact pickups such as Ischell are particularly suitable, because they capture the whole sound spectrum without upsetting the balance of the instrument.

Double bass

The double bass presents specific challenges linked to its size and the predominance of low frequencies. A pickup able to handle low frequencies without distortion is essential.

Amplification: an essential link

A good pickup is not enough: you also need a suitable amplification system. An acoustic amp is designed to reproduce the natural sound of the instrument faithfully, unlike an electric guitar amp, which colours the signal heavily. For more ambitious performances, an active speaker will provide the necessary power while preserving the clarity of the sound.

Installation tips

Installing a pickup varies according to the type you choose. An under-saddle piezo generally requires the help of a luthier. Contact pickups, on the other hand, are often self-adhesive and can be fitted by the musician in a few minutes. Remember to look at our spare parts and accessories for instrument pickups to complete your installation.

Conclusion

Choosing a microphone or pickup for an acoustic instrument depends on your instrument, the way you play and what you expect from the sound. Do not hesitate to contact us for personal advice: as specialists in acoustic pickups, we will be able to point you towards the most suitable solution.