11 Creative Methods To Write About Planar Magnetic Loudspeakers

Questions ArchiveCategory: Exams11 Creative Methods To Write About Planar Magnetic Loudspeakers
Aja Messenger asked 2 months ago

Planar Magnetic Loudspeakers and Ribbon Tweeters

Planar magnetic drivers such as ribbon tweeters, and other dynamic speakers have many advantages. Their large diaphragms require only a small amount of movement (excursion) which allows them to produce the same sound quality as traditional speakers.

They also have a dipolar radiation pattern which means they radiate equally to the front and back of the speaker.

High-Resolution Sound

Ribbon and planar magnetic speakers are known for their ability to produce precise, detailed sound. They are known to deliver high-resolution sound and reveal subtle nuances in music that other drivers are unable to reproduce or show.

Ribbon and planar drivers aren’t just accurate, but also offer superior soundstages, which allows them to reproduce a huge soundstage with incredible clarity. Audiophiles and home theater enthusiasts as well as audiophiles will find them to be a great choice.

The most notable feature of planar and ribbon drivers is their dipole radiation pattern, which radiates equal energy front and back, inverted phase to create an incredibly spacious and natural soundstage. This, combined with their broad dispersion, makes them suitable for large rooms, where they can fill the room with a broad and natural soundstage, without causing unnatural reflections off the furniture and walls.

Planar magnetic drivers also have a quick response time, which enables them to reproduce transients with more precision and speed than traditional cone drivers. This produces a clear and precise sound, even at extremely high frequencies.

Another advantage of planar magnetic drivers is their low distortion. This is due to the fact that they don’t use the voice coil, but instead an electrostatic field. This allows the diaphragm to move, without creating vibrations that could cause unwanted distortion.

A planar driver also has a larger gap between the magnets than a cone speaker. This results in a greater frequency response and less distortion at lower amplitudes and still provides high-quality bass.

Despite their many advantages planar magnetic speakers have a few limitations to consider. For instance, they can be quite expensive and may require more power than other types of speakers. Additionally, they can be heavy and difficult to place in some spaces. They are also sensitive to the acoustics in the room and require extensive treatment of the room in order to get the best performance. However, there are solutions to reduce these issues, such as by adding an attenuation resistor (provided by your speakers) in the attenuation position, or by performing some type of room treatment.

Wide Dispersion

Planar magnetic speakers also generate sound by regulating electrical currents that travel through wires that are suspended between magnets. They vibrate a flat membrane directly, not using an electrostatic charge. This allows for an increased surface area and greater precision. This principle allows them to be incorporated into smaller and less expensive headsets and speakers as opposed to electrostatic models.

Planar drivers are not just capable of dispersing sound effectively, but also deliver a superior imaging and clarity in the higher frequencies. This is a great benefit for audiophiles who love watching music or films on a large screen or in an open space.

Planar drivers can also provide a very deep bass, since they can be augmented with boxed subwoofers connected to or separated from the ribbon-like membrane. This is in contrast to traditional cone-type speakers that have woofers located at the bottom, which are unable to reproduce bass frequencies because of the physical constraints of woofer enclosures.

Another advantage of the planar closed back headphones driver is that it has extremely low distortion that is directly related to the size and excursion of the diaphragm that resembles a ribbon. A planar speaker is able create a large volume of sound with no distortion. This is the reason that the sound reproduction is clear and detailed.

Dynamic drivers found in conventional headphones and speakers typically exhibit significant distortion when driven to their highest limit of excursion. As a result, dynamic drivers usually produce a boomy or hollow sound.

Planar magnetic drivers are extremely efficient. They require less energy to drive, which results in a reduced energy consumption and impact on the environment. Furthermore, their diaphragms typically comprised of lighter materials than standard speakers, which reduces the amount of energy required for them to generate a given sound pressure.

Many audiophiles are familiar with planar/ribbon loudspeakers – particularly those produced by Magnepan, Infinity, and Apogee Acoustics – a new generation of brands is coming onto the market. For instance new planar loudspeakers made by manufacturers like Diptyque and Clarisys Audio are incorporating the latest advancements in ribbon technology.

Low Distortion

Planar magnetic speakers exhibit extremely low distortion due to the fact that they don’t employ the traditional dome-shaped diaphragm or cone. This is the direct result of their unique design, which eliminates the voice coil inductance commonly associated with traditional dynamic speakers (see U.S. Patent 6,353,560). This assures that the diaphragm always in phase with the magnetic field around it, which results in an output that is constant. In general, distortion only occurs when large amplitude waveforms are reproduced. With a single-ended planar magnet driver, distortion is virtually nonexistent at all frequencies above the bass.

Planar magnetic loudspeakers are very efficient and have a very low distortion. This allows the drive to be used with a much lower power consumption than is normally required for other speakers. This in turn translates to lower cost of ownership and lower energy consumption.

The distortion of planar magnetic drivers is also considerably less than conventional dynamic speakers, and more so for electrostatic speakers. This is due to the fact that the planar magnet driver’s flat diaphragm has a conductor trace that lets it react to magnetic fields created on either side.

The two magnets need to be placed in a way that the voice element remains in the magnetic field at optimum levels throughout the time. This allows planar magnetic drivers to perform at a very linear level in all frequencies above bass.

Planar magnetic drivers come with a myriad of other advantages they offer, but the main advantage is that they can be constructed as dipoles (radiating in opposite directions and Planar magnetic loudspeakers equally in front and behind the speaker similar to an ESL), or monopoles (radiating in the direction of forward, more like traditional dynamic speakers). This opens the door to an array of possible designs, especially when combined with the ribbon tweeter.

There are a myriad of planar magnetic loudspeakers that are available today, planar magnetic loudspeakers from manufacturers like Hifiman Dan Clark Audeze and Fostex. Each brand has its own distinctive sound that comes of their proprietary design of drivers and other technological innovations. These speakers are characterized by their stunning clarity and dynamic as well as their controlled directionality.

High Power Handling

Planar magnetic speakers can handle a lot more power than traditional moving coil dynamic drivers without the audible strain and stress that they may cause. This is due to the fact that the “voice coil” is spread across an extensive area instead of being squeezed into a narrow gap between the cone and the basket like traditional dynamic drivers. This gives the voice-coil an increased surface area to disperse any heat.

Planar drivers can handle such a large amount of power because they are light compared to conventional drivers. Dynamic drivers are made of diaphragms with heavy, thick diaphragms that are several orders of magnitude thicker and heavier than the ultra-light diaphragms that are found in planar magnetic drives. Due to their massive mass, these conventional diaphragms need a larger amount of force to move between them (a measure called excursion) in order to produce a given level of sound pressure.

In the end they aren’t able to be driven as effectively as the planar magnetic driver because the voice coil could begin to generate substantial amounts of distortion. This is why it’s crucial to purchase only loudspeakers that are designed for the type of amplifier you’re planning to drive them with.

A planar magnetic driver’s high excursion allows it to produce a wider soundstage than conventional drivers. This is because the entire diaphragm vibrates to create a flat, even wavefront rather than the more centered spherical wavefront found in conventional drivers. The wider soundstage also improves the clarity and accuracy of the speakers which allows them to better reproduce subtle details and complex sounds.

The disadvantage of the superior power handling capabilities of planar magnetic drivers is that they tend to be more expensive to produce and require stronger amplifiers in order to operate at full capacity. They can be huge and heavy, making it difficult to install in certain areas. You may also have to add a subwoofer to get satisfactory results at lower frequencies.

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