9/25/2023 0 Comments Best piezo pickups for celloPreamplifiers have an input for the transducer (or microphone) and an output jack for the cable to the amplifier. The goal is always to absorb desired vibrations and to exclude other interference. Transducers also have single and twin models (Singleducer and Twinducer) and in some systems the transducers are allowed to float between the bridge and the tail pice. The thin foil versions are often placed under the bridge feet. Transducers for string instruments are usually round discs (the actual sensors) and are attached to the instrument either with adhesive tape or with modeling clay (a special putty). They are said to have a very natural sound. They are available in electrostatic and electrodynamic versions, with the electrodynamic version being used in the orchestra and broadcast sectors. NFX (Nanoflex)Īs an alternative to piezo technology there are the pickups from the company Schertler, which look like piezo pickups from the outside but are actually closed microphones equipped with a pre-amp. The output voltage is very low, requiring high-quality shielding and a preamplifier to operate. These are very thin and do not react to pressure, but to longitudinal movements. In music there are not only piezo ceramics but also piezo films or foils. So you should avoid leaving them in a car on a hot summers day. Piezo elements also have a special crystal structure, which is irreversibly lost at higher temperatures (sometimes as low as 50° C). Due to the high output voltage, these pickups can be used without a preamplifier but due to their high sensitivity they are also susceptible to interference. Special piezo ceramics were developed for this purpose that are hard, stable and convert the mechanical vibrations into electrical voltage. The most often and widely produced of these are the piezo systems, which use the piezo electronic effect: Mechanical pressure on a specific crystals is translated into an electronic load. In the case of pickup systems in the music sector, it is the conversion of mechanical vibrations into electrical voltage, which is then amplified into an acoustic signal. A transducer is something that converts one type of energy into another.
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