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How a Planar Magnetic Diaphragm Headphone Driver Works In the past, dynamic drivers featured a voice coil attached at the center of the dialephragm, which is conical. When an electrical signal passes through a voice coil the diaphragm is moved. However, the force exerted is limited to a tiny area and it's difficult to allow different parts of the diaphragm to move at same at the same time. This can result in distortions due to breakup patterns. Sound Detail Many audiophiles want to hear an accurate sound through their headphones. This can be accomplished through a planar diaphragm. This type of headphone driver operates in a similar fashion as dynamic cone drivers, but with much more modern technology behind it. A planar diaphragm has flat structures that are integrated into the headphone's frame. It's constructed out of a lightweight, thin film-like material. It's designed to be as flat and uniform as possible. This allows for an even pressure distribution across the entire surface. A planar magnetic diaphragm's flat design provides a greater soundstage. A more focused wavefront leads to better sound staging which helps you locate the exact location of an vocal or instrument on the track. This is a major advantage over the more spherical waves typically of dynamic drivers. A planar diaphragm is different from the traditional dynamic drivers that employ a voice-coil that is anchored to the center of a cone composed of plastic or paper. Instead, it employs a series of magnets on each side of its flat surface. The electrical current passing through the voice coil interacts with the magnets to drive the diaphragm and produce sound. Since the entire diaphragm is driven simultaneously there is no breakup modes mechanical filtering transmission delay, or local resonances that could negatively impact sound quality. A diaphragm that is smooth and uniform can also accelerate more quickly than a larger, more robust one used in dynamic drivers. Physics' laws of physics say that force is proportional to mass and acceleration so the faster a diaphragm will move, the more power it can exert. This results in planar magnet drivers having better response to bass and superior detail retrieval. The advantages of a planar magnet driver are not without cost. They are more expensive than dynamic drivers since they have a large diaphragm and a complicated motor. planar magnetic gaming headset require a stronger amplifier to work efficiently. Many manufacturers of planar magnetic headphones can take advantage of their technology to create premium headphones at competitive prices. Examples include the Audeze LCD-4 and HiFiMAN Susvara. High Sensitivity The planar driver is different from the moving coil drivers found in the majority of headphones and IEMs, in that it uses a flat diaphragm, instead of a traditional cone or dome shaped membrane. When an electrical signal is passed through, it interacts with the magnets on both sides of the diaphragm and produces sound waves by bouncing the diaphragm. The diaphragm that is flat is able to respond quickly to sound, and can produce a wide spectrum of frequencies from lows to highs. Planar magnetic headphones are more sensitive than other headphone drivers which utilize diaphragms that are many times larger than the typical planar design. This gives you an amazing amount of clarity and dynamic range that allows you to hear every detail your music can offer. Additionally that, planar magnetic drivers create an extremely uniform force throughout the diaphragm and eliminates breakup points and produces a smooth sound that's free of distortion. This is especially important for high-frequency sounds, where breakups can be noticeable and distracting. In the FT5, this is achieved by utilizing a highly advanced material called polyimide, which is extremely light and robust, as well as a specialized conductor pattern that eliminates the inductance intermodulation distortion. OPPO's planar magnet drivers also offer a superior phase coherence. This means that when the sound wavefront hits our ear, it is flat and unaltered. Dynamic drivers however are spherical in their wavefront that disturbs the coherence, resulting in poor signal peak reconstructions particularly in high frequencies. OPPO headphones sound extremely natural and realistic. Wide Frequency Response Planar magnetic diaphragms have the ability to reproduce sounds at higher frequencies than traditional dynamic drivers. This is due to their diaphragms are thin and light. moves extremely precisely. This allows them to offer an excellent transient response. This makes them an exceptional choice for audiophiles that require rapid response from their headphones and speakers to reproduce the finest nuances in music. This flat design provides a more uniform soundstage than traditional headphones that use coiled dynamic driver. In addition they are less prone to leakage, which is the sound that escapes the headphone cups and enters the surrounding environment. In certain situations, this could be a problem as it can distract the listener, and make them lose focus while listening to music. In other instances, it can be beneficial since it allows listeners to enjoy their music in public environments without worrying about disturbing other people close by. Instead of using an underlying diaphragm that is shaped like a cone, planar magnetic headsets have an array of printed patterns on a thin film of the diaphragm. This conductor is suspended between two magnets. When an electrical signal is applied to it, it transforms into electromagnetic energy and makes the magnetic forces that are on either side of the diaphragm to interact with each other. This is what causes the diaphragm to vibrate, which creates the sound wave. The low distortion is due to the uniform motion of the thin, lightweight diaphragm, and the fact that the force is evenly distributed across its surface. This is a significant improvement over traditional dynamic drivers that have been known to cause distortion at very high levels of listening. Some high-end headphones use the old-fashioned design of moving coils. However, most HiFi audiophiles are embracing this old technology to create new generation planar magnetic headphones that produce a stunning sound. Some of these models require a top-of-the-line amplifier to power them. But for those who are able to afford it, they can provide an experience that is unlike any other headphones. They provide a rich and detailed sound without the distortion that is common with other types of headphones. Minimal Inertia Because of their design, planar magnetic diaphragms are extremely light and can move much faster than traditional drivers. They can reproduce audio signals with greater accuracy and can be tuned to a greater range. They also give more natural sound and have less distortion than traditional dynamic speakers. The dual rows of magnets inside a planar magnetic driver generate equal and uniform magnetic forces across the entire surface of the diaphragm. This prevents unwanted and unnecessary distortion. The diaphragm that is lightweight is more manageable since the force is evenly dispersed. This lets the diaphragm move with a precise pistonic movement. Planar magnetic drivers are capable of achieving very high levels of performance while carrying a minimal weight, making them ideal for portable headphones. They can also be designed to produce a range in frequencies, ranging from low-frequency sounds to high-frequency ones. The large frequency response and precise sound reproduction make them a favourite among audio professionals. In contrast to dynamic drivers, which make use of coils to push against the diaphragm, planar magnetic drivers have no mechanical components that could meet with each with each other, causing distortion. This is due to the fact that the flat array of conductors rests directly on the diaphragm, instead of in a coil behind it. In contrast the slim and light diaphragm in a planar magnetic driver may be driven by an extremely powerful magnetic field without any loss of energy. The diaphragm is thin, light membrane is driven by a magnetic field that exerts a constant pressure. This prevents it from deforming or creating distortion. The moment of inertia is the resistance to rotation of an object. The formula I = mr2 could be used to calculate it. The shape of an object influences its minimal moment of inertia. Longer and thinner objects have lower moments of inertia.