Ribbon Speakers

Ribbon speakers diaphragm   The diaphragm of a ribbon loudspeaker is conductive and it is positioned in a transverse magnetic field. It is also supported at each end. Current flowing along the diaphragm creates a force perpendicular to it. The mechanism produces...

Mid-Range Speaker

  What is a mid-range speaker?   Mid-range speaker, as its name suggests, covers the middle part of the frequency spectrum. Usually, it covers the range between 500 Hz and 4 kHz. This portion of the audio spectrum may be the most important. This is because...

MEMS Microphones

What are MEMS Microphones?   Microelectromechanical systems microphones (also known as MEMS) can be described as one of the smallest types of microphones in the market. Their development led to very small microphones with really high performances. The MEMS...

Crystal Microphones

  What is a Crystal Microphone?   The crystal microphone is the type most widely used in lower cost installations. It has relatively high output level and high impedance. A long cable will reduce the high output voltage available from a crystal microphone...

Electret Microphones

Electret materials have been known since the 1920s and were proposed as condenser microphone elements several times. However, people considered them impractical before the invention of the foil electret tat Bell Laboratories in 1961 by James West and Gerhard Sessler,...