How a Planar Magnetic Diaphragm Headphone Driver Works

In the past, dynamic drivers had an attached voice coil at the center of a conical dialephragm. When electrical signals pass through a voice coil, the diaphragm shifts.

The force is only applied to a small portion of the diaphragm, and it's hard to move different points at the same time. This can lead to distortions due to breakup patterns.

Audio with a Detailed Sound

Many audiophiles seek to get an authentic sound from their headphones. A great way to achieve this is with a planar magnetic diaphragm. This kind of headphone functions in a similar manner to dynamic cone drivers but with much more modern technology.

A planar diaphragm has an elongated structure that is embedded in the headphone's frame. It's made out of a lightweight, thin film-like material. It is designed to be as uniform and flat as is possible. This ensures an even distribution of pressure across the entire surface.

The flat design of a planar diaphragm magnetic diaphragm lets you control the soundstage. A more focused wavefront leads to better sound staging which helps you identify the exact location of an instrument or vocal on the track. This is a major benefit over the more spherical wavefront typically of dynamic drivers.

In contrast to traditional dynamic drivers, which make use of a voice coil attached to the center of a plastic or paper cone, a planar diaphragm utilizes a series of magnets on each side of its flat face. The diaphragm is vibrating and emits sound when the current that flows through the voice coil is absorbed by the magnets. Since the entire diaphragm is driven simultaneously there is no breakup modes mechanical filtering transmission delay or local resonances that can negatively affect the quality of sound.

A diaphragm with a flat and uniform shape can also accelerate more quickly than the larger and heavier ones used in dynamic drivers. According to the laws of physics force is proportional to mass and acceleration. This means that the greater the speed at which a driver's diaphragm is moved and the greater force they exert. This gives planar magnet drivers a more accurate response to bass as well as superior detail retrieval.

Of course, the benefits of the planar magnetic driver do not come without a price. Because they feature a complex motor system and large diaphragm, they typically cost more than dynamic drivers, are bulkier and require a higher-powered amplifier to function effectively. Many planar magnetic headphone makers benefit from their technology to create high-performance headphones for competitive prices. Examples include the Audeze LCD-4 and HiFiMAN Susvara.

High Sensitivity

Planar drivers differ from moving coil drivers used in most headphones or IEMs in that they employ a flat membrane instead of the traditional cone or dome membrane. As an electrical signal passes through, it interacts with the magnets on both sides of the diaphragm and produces sound waves by bouncing the diaphragm. The diaphragm with a flat surface is able to respond quickly to sound and it can produce a wide range of frequencies ranging from lows to highs.

Planar magnetic headphones are more sensitive than other headphone drivers that make use of diaphragms multiple times larger than the typical planar design. This creates an incredible amount of clarity and dynamic range, allowing you to hear every detail that your music can provide.

Planar magnetic drivers also provide a very consistent driving force across the diaphragm. This prevents breakup and produces an undistorted and smooth sound. This is particularly crucial for high-frequency sounds where breakup can be audible and distracting. In the FT5 the way this is achieved is through the use of a sophisticated material called polyimide. It is both ultra-light and extremely robust, as well as a sophisticated conductor pattern that eliminates inductance related intermodulation distortion.

OPPO's planar magnet drivers also have better phase coherence. This means that when an audio wavefront strikes our ear, it is flat and unaltered. Dynamic drivers have a spherical-shaped wavefront that disrupts the coherence of the signal, which result in less-than-perfect reconstructions high-frequency signals, particularly at high frequencies. OPPO headphones sound very natural and realistic.

Wide Frequency Response

A planar magnetic diaphragm can be used to reproduce sounds with much higher frequencies than traditional dynamic drivers due to the fact that their diaphragm is thin and light in weight. moves in a very controlled manner. This allows them to offer excellent transient response, which makes them an exceptional choice for audiophiles who require rapid responses from their headphones and speakers to reproduce the finest nuances in music.

This flat design provides a more uniform soundstage than headphones that employ a dynamic driver that is coiled. Additionally they are less prone to leakage that is the sound that escapes from the headphone cups and enters the surrounding area. In some cases this can be a problem because it can distract listeners and disrupt their concentration when listening to music. In some instances, this can be a problem because it can distract listeners and affect their focus while listening to music.

Instead of using a coil behind a diaphragm shaped as cones Planar magnetic headsets comprise an array printed on a thin film of the diaphragm. The conductor is suspended between two magnets and when an electrical signal is applied to this array, it turns into electromagnetic, causing the magnetic forces on either side of the diaphragms to interact with each one. This is what causes the diaphragm vibrate, planar magnetic driver resulting in the sound wave.

The low distortion is due to the uniform movement of the lightweight, thin diaphragm and the fact that force is evenly dispersed across its surface. This is a significant improvement over traditional dynamic drivers that can cause distortion at very high levels of listening.

Some premium headphones utilize the old-school moving coil design. However, the majority of HiFi audiophiles are now embracing this long-forgotten technology to create new generation of planar best magnetic planar headphones headphones that produce a stunning sound. Some of these models require a premium amp to power them. But for those who can afford it, they can provide an experience that is unmatched by any other headphone. They offer a full and clear sound without the distortion that is common with other headphones.

Minimal Inertia

Due to their construction the diaphragms of planar diaphragms move faster and are less heavy than conventional drivers. They reproduce audio signals with greater precision and can be tuned to a wider range. They also provide more natural sound and have less distortion than traditional dynamic speakers.

The dual rows in a planar magnet driver produce an equal and uniform magnetic force across the diaphragm's surface. This eliminates unwanted and unnecessary distortion. Since the force exerted on the lightweight diaphragm is evenly distributed and evenly, it can be controlled more precisely. This lets the diaphragm move in a precise pistonic motion.

They also have the capability of achieving extremely high levels in performance with minimal weight. This makes them perfect for use as a portable headphone. In addition, they can be designed to offer a wide range of frequencies, from deep bass to high-frequency sounds. Audio professionals appreciate them for their wide frequency response and accurate sound.

Contrary to dynamic drivers that use coils to push against the diaphragm the planar magnetic driver has no mechanical components that could meet with each the other and cause distortion. This is due to the fact that the conductors' flat surface rests directly on the diaphragm instead of within a coil behind it.

A planar magnetic driver however can drive a small and light diaphragm using a powerful magnetic planar headphones force, without loss of energy. As a result, the diaphragm is driven with an even pressure, which prevents it from deforming and causing distortion.

The moment of inertia is the resistance to rotation of an object. The formula I = mr2 could be used to determine it. The shape of an object influences its moment of inertia minimum. Longer and smaller objects have lower moments of inertia.