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Planar Magnetic Loudspeakers and Ribbon Tweeters

Planar magnetic drivers and planar Magnetic speakers ribbon tweeters have many advantages over traditional dynamic speakers. Their large diaphragms need only a small amount of movement (excursion), allowing them to produce the same sound quality as traditional speakers.

They also have a dipolar pattern of radiation that 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 accurate, detailed sound. They are known for their high-resolution sound that reveals subtle nuances in music that other drivers aren't able to reproduce or reveal.

The planar and ribbon drivers aren't just accurate, they also have superior soundstages, allowing them to reproduce a large soundstage with exceptional clarity. Audiophiles, home theater enthusiasts and audiophiles will find them be an excellent choice.

Planar and ribbon drivers are distinguished by their dipole pattern. This pattern emits equal amounts of energy the front and back, with an inverted phase, resulting in a natural soundstage. This, in conjunction with their broad dispersion, makes them suitable for large rooms, as they can fill the room with wide and natural soundstage without producing unwanted reflections off furniture and walls.

Planar magnetic drivers have a rapid response time, which allows them to reproduce transients with greater accuracy and quickly than cone drivers. This results in a highly clear and precise sound, even at extremely high frequencies.

Planar magnetic drivers are well-known for their low distortion. This is due to the fact that they don't utilize a voice-coil, but an electrostatic field. This allows the diaphragm to move, without creating vibrations that can cause distortion that is not desirable.

A planar driver also has a larger gap between the magnets than a cone speaker. This results in a better frequency response and less distortion at lower amplitudes while still providing excellent bass performance.

Despite their many advantages, planar magnetic speakers (click to find out more) have a few limitations to be aware of. They can be expensive and require more power compared to other types of speakers. They can also be heavy and difficult to install in certain rooms. They are also sensitive to the acoustics of the room and require extensive treatment of the room in order to ensure optimal performance. There are methods to reduce the effects. For example you can include an attenuation resistance (provided with speakers) and set it in the attenuation setting. Or, you can perform some type of room treatment.

Wide Dispersion

Planar magnetic speakers also create sound by regulating electrical currents that pass through wires that are suspended between magnets. However, they directly vibrate a flat diaphragm, rather than an electrostatic charge which gives them a larger surface area and better accuracy. This operation principle makes it possible to build them into smaller, less expensive headphones and speakers than electrostatic models.

planar magnetic technology drivers are not only capable of dispersing sound efficiently, but also deliver a higher quality image and clarity in higher frequencies. This is a huge advantage for audiophiles who enjoy listening to their favorite movies or music in the living room of a large size or other open space.

Planar drivers can also produce a very deep bass, because they can be enhanced with subwoofers in boxes that are connected to or separated from the ribbon-like membrane. This is in contrast to traditional cone speaker woofers that are usually placed in the bottom of the cabinet, a location that is not able to reproduce bass frequencies due to the physical constraints of the woofer enclosure.

A planar driver has a low distortion rate which is directly correlated to the size and travel of the diaphragm. As a result, a planar speaker can produce an extremely high volume of sound with minimal distortion, which is why it can produce such clear and detailed reproduction.

In contrast, the dynamic drivers used in conventional speakers and headphones typically exhibit significant amounts of distortion when they are driven to the limit of extreme excursion. This is why dynamic drivers typically create a booming or hollow sound.

Planar magnetic drivers are extremely efficient. They require less power to drive, resulting in a lower power usage and reduced environmental impact. Their diaphragms that are generally smaller than traditional speakers, also decrease the energy needed to propel them to produce a specific sound pressure.

Many audiophiles have heard of speakers made of ribbon and planar, such as those made by Magnepan Infinity and Apogee Acoustics. However, an entirely new brand is available. For instance, new planar loudspeakers from manufacturers such as Diptyque and Clarisys Audio are incorporating the most advanced ribbon technology.

Low Distortion

Because planar magnetic speakers don't feature a cone- or dome-shaped diaphragm, they produce extremely low distortion. This is the direct consequence of their unique design, which eliminates the voice coil inductance associated with conventional dynamic speaker drivers (see U.S. Patent 6,353,560). This assures that the diaphragm never out of phase with the magnetic field around it, which results in a constant output. The distortion is typically only evident when large waveforms are being reproduced. With a single-ended planar magnetic driver, distortion is virtually nonexistent at all frequencies above the bass.

Planar magnetic loudspeakers can be very efficient and have a very low distortion. This enables the drive to operate with a lesser amount of power than is normally required for other speaker technologies. This in turn translates to lower operating costs and reduced energy consumption.

The distortion of planar magnetic drivers is significantly lower than traditional dynamic speakers, and more than electrostatic speakers. This is due to the fact that a planar magnet driver's flat diaphragm is equipped with an electrical conductor trace that lets it to react to magnetic fields generated on either side.

These two magnets must be carefully placed to ensure that the voice element is optimally located within the magnetic field at all times. This is what allows magnetic drivers that are planar to function at a very linear level in all frequencies above bass.

Planar magnetic drivers have many other advantages they offer, but the main advantage is that they can be built as either dipoles (radiating in opposite directions and equally in front and behind the speaker similar to an ESL) or Monopoles (radiating in the forward direction similar to traditional dynamic speakers). This permits a wide range of designs, particularly when combined a ribbon-tweeter.

Many planar magnetic loudspeakers are available today from brands such as Hifiman, Dan Clark, Audeze and Fostex. Each company has a signature sound, which is a result of their proprietary driver designs as well as other engineering breakthroughs. These speakers are characterized by their incredible detail, dynamic, and controlled directionality.

High Power Handling

Planar magnetic speakers can handle a lot more power than traditional dynamic moving coil drivers without the tension and strain they can cause. The "voice coil" is not squeezed into the small space between the cones and baskets as in traditional dynamic drivers. Instead, it is spread across a larger area. This gives the voice coil a larger surface area to dissipate heat efficiently.

Another reason that planar drivers can handle so much power is that they have the smallest mass when as compared to conventional drivers. Dynamic drivers feature diaphragms with heavy, thick diaphragms that are a tenth of a pound thicker and heavier than the ultra-light diaphragms that are found in the planar magnetic drive. Because of their mass, conventional diaphragms require a greater amount of force to move forwards and backwards (a measurement called excursion) to create a certain level of sound pressure.

They're not able to be driven as much as a planar magnetic driver, since the voice coil will start to produce significant distortion. This is why it's important to purchase only loudspeakers that are rated for the amplifier that you intend to drive them with.

The high excitation of a planar magnetic driver also allows it to generate a much larger soundstage than traditional drivers. This is due to the diaphragm's ability to vibrate uniformly and flat to form an asymmetrical wavefront, not the spherical wavefront that is typical with traditional drivers. The wider soundstage improves the precision and detail of the speakers and allows them to reproduce subtle nuances as well as more complex sounds.

The disadvantage of the superior power handling that is offered by planar magnetic drives is that they tend to be more expensive to manufacture and require stronger amplifiers to run them at their full capacity. They can be huge and heavy which can make it difficult to install in certain settings. You may also have to install a separate subwoofer if you want to achieve good results at lower frequencies.