At present, there are currently 3 types of headphones available on the market. This article will help you separate out out the category that you would be most interested in. http://www.outtechus.com/what-are-the-best-headphones-to-use-with-new-iphone/
The categories are:
1) Dynamic Headsets
2) Orthodynamic/Isodynamic Headsets
3) Electrostatic Headphones
Three categories are based on the sort of technology used to produce sound from the earbuds. The difference is the sort of transducer principle used to convert electrical signals into sound waves.
1) Energetic Headphones
Dynamic headphones are by using a moving coil new driver. A moving coil new driver simply means that there is a magnet in the headphone, which produces a static magnetic field. A voice coil fastened to a diaphragm is put in the permanent magnetic field and a current is run through the voice coil rendering it cause the diaphragm to vibrate and produce sound surf.
Most dynamic headphones need little electricity for this to work. Due to this, almost all headphones on the market are dynamic earphones. These are being used by average music listeners, musicians and professional studio mixers equally. The most popular manufacturers in the music industry that produce dynamic earbuds, includine Sony, Beyer, Sennheiser, Grado and Audio-Technica. They will can cost $8 or $800 US Dollars (USD) upwards and is born or wireless, open-air or closed-back, ear buds or studio-quality.
Pros of powerful headphones are that they are acquireable and are usually cheaper that orthodynamic and electrostatic ones. As little electricity is needed to drive them, almost all of them will work with lightweight devices and computer systems with no need of a headphone amp. A head-phone amp is a small power amplifier specifically designed to drive the little speakers inside the headsets.
The cons are that orthodynamic and electrostatic headsets can beat them in conditions of speed and clarity.
Dynamic headphones are the most effective headsets to start out with because of their cost and large range.
2) Orthodynamic as well as Isodynamic Headphones
Orthodynamic earphones were very popular worldwide in the 1970s. They are really considered by some to be old technology but they have a rebirth now.
Manufacturers include Audeze, Fostex, Hifiman, Kenwood and Dual.
Orthodynamic headphones have flat and bigger words coils, which cover the diaphragm. This means that the latest is better distributed to it, which in convert produces sound waves. Larger voice coils mean bigger diaphragms (even bigger than electrostatic headphones) which means that more electricity is necessary to drive them.
Pros of Orthodynamic headphones are that they give excellent response and sound quality similar to that of an electrostatic.
Cons of Orthodynamic headphones are that they are generally bigger and require a headphone amplifying device to drive them thus they are not lightweight. Also, they are generally more expensive than dynamic headphones.
3) Electrostatic Headsets
Electrostatic earbuds have drivers, which do not have a tone coil. The diaphragm is instead charged with electricity. It is put in between two electrically recharged metal plates (electrodes), which are perforated. If the diaphragm vibrates, air is forced through the punched metal plates producing a sound wave.
Electrostatic headsets are usually more expensive than dynamic headphones, and are comparatively uncommon. Thanks to the diaphragm and two metal plates, that are needed to be recharged with electricity, the earphones need a huge amount of electricity to operate a vehicle. The amount is so much that normal amps which drive dynamic and/or orthodynamic headsets just won’t cut it. An exclusive headphone amplifier is needed which regularly requires power potentials in the range of 100 to a thousand volts.
The thin diaphragm that is merely a few micrometers thick allows it to produce a consistency response, which extends well over an audible limit of approximately 20 kHz. In other words, higher clarity and sound quality is produced.
Akg and Stax produce electrostatic earphones.
Pros of electrostatic earbuds are the high quality and clarity that they are reputed for.