- Jan 30, 2005
Jude should put you on retainer!!! You and a few others here are an amazing asset. Thanks for your selfless, work here on head-fi.Happy holidays. and Thanks!
| Originally Posted by spritzer /img/forum/go_quote.gif |
In a nutshell, electrostatics are capacitors which present a reactive load with very high impedance (170K or more) plus they all have to be balanced by nature. This calls for high voltage to drive them with very little current but to properly feed them the amp has to have ample power reserves and be fast enough to keep up with the transducers.
Dynamics are just a coil of wire, wound around a magnet. Feed the wire some current and the magnetic effect will cause it to move. For this you need very little voltage (comparatively) and more current.
To use electrostatic headphones with a dynamic amp (b22 or something like that) you need a transformer which steps up the voltage 20-30 times (and steps the current down too), splits the phase (so the output is balanced) and lowers the impedance the amp "sees". You also need a bias supply which gives the diaphragm potential or it will not be moved by the swinging voltage on the stators.
Jude should put you on retainer!!! You and a few others here are an amazing asset. Thanks for your selfless, work here on head-fi.