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we have a lot of names for the devices that we use to listen to music and other

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audio mediums without disturbing others headphones earphones ear speakers cans

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and all those words mean pretty much the same thing so that's not the focus of

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today's video what is the focus of today's video is the different types of

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drivers that you might find inside them drivers or transducers convert the

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electrical signals sent through the cable or the air if you're using

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Wireless or Bluetooth or whatever to the sound waves that you're ears here so

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first up is the most common type of headphone driver the moving coil driver

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also known as a dynamic driver it consists of a stationary magnet attached

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to the frame of the headphone this creates a static magnetic field a

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diaphragm and a coil wire or voice coil

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the voice coil actuates the diaphragm based on the varying current that gets

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passed through the coil and the moving diaphragm combined with the air moving

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around it creates the sound that you hear practical Dynamics driver sizes for

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headphones are anywhere from Tiny 10 mm or sometimes even smaller drivers that

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fit inside IM to Big 55 mm you know

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pounding base capable drivers that you'll find in over ear headphones and

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the main benefits of these are that they are inexpensive to produce keeping

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manufacturing costs relatively low for entry-level products and if engineered

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correctly they can deliver a wide enough frequency range with enough accuracy

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that even high-end audio file grade products can be built using this

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technology electrostatic drivers they're

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a little different they consist of a thin diaphragm typically made of coated

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polyethylene tetral film which is electrically charged and suspended

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between two perforated metal plates or electrodes the electrical sound signal

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is applied to the electrodes which produces an electric field between them

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and draws the diaphragm towards one plate or the other air is then forced

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through the perforations or the curves on the electrodes which when combined

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with the moving diaphragm due to the constantly changing electrical signals

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creates sound waves which your ears hear electrostatic drivers are generally

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capable of producing a very wide range of frequencies and their frequency

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response often extends well above the audible limit of approximately 20 khz

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nowadays electrostatic drivers are only really present in high-end audio file

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grade headphones since they're quite expensive to produce require stronger

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amplification and the benefit for most people simply doesn't justify the

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additional cost orthodynamic or planer magnetic drivers operate on a similar

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principle but use large permanent magnets and Vary the charge of the

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membrane to produce sound the final type

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that we're highlighting today is balanced armateur or ba drivers

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ba they're the smallest ones available and they're incredibly power efficient

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which makes them great for imem also known as Canal phones and for hearing

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aids actually this driver type features a coil wrapped Armature that is pivoted

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and then perfectly centered or balanced between the poles of a permanent magnet

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then when a current passes through the coil it causes the Armature to Pivot

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passing vibrations to the drive Rod which is attached to the center of a

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diaphragm and the movements of the drive Rod cause vibrations in the diaphragm

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creating the sound that you hear common theme Here Right these drivers give a

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clean accurate sound but typically have a fairly narrow frequency response range

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they also don't really deliver head crushing base and are very limited in

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performance at the extremes of the human hearing range but they are often joined

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with much success with other ba or dynamic drivers in a passive crossover

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Network to expand the overall frequency range of the inar monitor with each

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driver focused on a certain band do note

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though that when shopping for headphones more does not always mean better so do

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your research on the quality of the drivers inside a PA IM before you pay

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some ridiculous amount of money just cuz they have 16 ba drivers in each side or

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something now as I mentioned before

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actually I didn't mention it before because I altered the scripts before I did this but anyway this video is by no

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means comprehensive but it should give you a good idea of what the main

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differences are between the most popular driver types as well as a couple of

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notes on you know the less popular electrostatic plan or magnetic ones if

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if you're interested in learning a lot more about headphone drivers head over

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to hf.org as their forums have a ton of

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information about all aspects of headphones but it's a very passionate

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community so bring your fud filter and probably a dictionary you're very likely

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to need both speaking of things that you are likely to need if you have a

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computer computer fans cases and power supplies Cooler Master is the sponsor of

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Cooler Master for sponsoring this episode guys be sure to check out Cooler

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Master and CM Storm at the link in the video description if you're in the market for a new PC or thanking about

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upgrading some of your components thanks for watching like this video if you

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