Planar Magnetic Speakers
Planar magnetic speakers utilize an elongated diaphragm to transform an electrical signal into sound. They are known for their accuracy and detail as well as their low distortion. They have a wide range of frequencies, making them easy to listen to.
The diaphragms of dynamic speakers are much stiffer and heavier than those used in planar magnetic speakers. This restricts their ability to accelerate and move quickly which can result in distortion of the sound.
They are easy to build
Many people think that building planar magnetic speakers is a challenge, but they are actually very easy to make. The key is to follow the instructions and construct a well-engineered speaker. The result will be a top-quality audio system that is able to compete with any commercially available model. Apart from being simple to construct these speakers offer better sound quality than traditional dynamic drivers. They offer superior detail, a wider dynamic range and controlled directivity that all make for an experience that is more immersive.
In www.headphonesshop.uk to conventional loudspeakers that emit sound in circular fronts, planar magnetic speakers emit flat waves that are highly directional. This allows them to reproduce sounds at extremely low frequencies, which could be difficult for conventional speakers to do. Additionally, their precise imaging can bring the music to life in a manner that makes conventional speakers sound slow in comparison.
To produce a sound wave, a planar magnetic driver uses a thin metal film suspended between two conductive panels that are stationary. The audio signal is carried by a current through the panel, and it quickly shifts between positive and negative. The negative end of the panel is dragged toward the magnetic array which then moves it back and forth to vibrate the diaphragm. The result is an excellent dynamic response and a wide soundfield with minimal distortion.
The maximum distance of an acoustic speaker is among the most important aspects of its performance. It is the maximum distance a speaker can travel before it begins to distort. This is measured at a certain frequency and output level. For example, if you want to hear a 20-Hz bass note, you will require a speaker with an excursion of around 1 mm.
A reliable planar magnetic driver should be able to handle high excursion, while retaining its structural integrity. It should also be able disperse heat effectively and handle the rigors of a large power. To meet these requirements, the voice coil of the speaker must be of sufficient thickness and diameter. The voice coil must be wrapped in a material capable of conducting electricity.
They efficiently disperse heat
This is an important aspect of any speaker, but especially one that is planar magnetic. The voicecoil is in close proximity to the magnet array and has a high flux density across the gap. This is the source of heat in a speaker, and it must be dissipated to prevent distortion and damage. Convection and radiation are two ways in which the voicecoil is able to get rid of heat. Radiation is the preferred option since it doesn't have the pumping effects of the cone's movement however, it must be executed carefully and the design must be capable of handling the power that is being applied.
The first step is to ensure that the distance between the array and the voicecoil is at a minimum of 1mm. This is crucial, since the gap can create some very unpleasant distortion if larger than this. The gap must be large enough for the voicecoil's movement without hitting the rear plate. This is why the wide gap designs that are favored by many manufacturers are inefficient and only work at low frequencies.
Put a magnet in the gap and measure the resistance. The higher the resistance the less heat will be dissipated and the greater the likelihood of distortion. The lower the resistance, the more efficient the speaker will be, and the less distortion it can cause.
Planar magnetic speakers are able to reproduce the upper octaves precisely, but are not able to reproduce lower frequencies due to the large diaphragm required. Many planar magnetic speakers combine the woofer and a tweeter. This allows them to cover an extended frequency range while causing less distortion.
In addition to their amazing bass, planar magnetic drivers have very low distortion. The dipole design means that they emit equal amounts of energy in both directions with an inverted phase. This is an advantage over conventional drivers that are subject to mechanical distortion and strong Q resonances.
They can handle a great deal of power
Many people are worried that planar magnetic speakers won't be able to handle the amount of power they need however the reality is that they do. The "voice coil" has a larger surface area than a dynamic driver and can thus disperse more heat. Furthermore, the diaphragm is thin and lightweight, which helps to reduce distortion levels.
However, it's crucial to keep in mind that an acoustic speaker planar must be driven by a significant amount of power to create a excellent sound. They are sensitive to the way a room is configured because they aren't able to disperse their energy as traditional speakers. They are also directional and if you are listening from just a few degrees away, the sound level can be significantly reduced.
Inefficiency is another factor that allows them to handle a large amount of power. This is due to less impedance than conventional drivers, meaning they require more power to maintain the same volume of listening. Furthermore, they are susceptible to magnetic saturation, which could cause distortion.
A great way to test the ability of a planar magnetic speaker to take on lots of power is to measure its maximum excursion. This is the length the diaphragm can move before it reaches the magnet array and begins to distort. The most effective planar magnetic speakers will reach the distance of around 1 mm before this occurs.
Planar magnetic speakers also offer a wider frequency response than conventional cone drivers, which could be beneficial in certain situations. They can reproduce a larger quantity of frequencies, which could enhance the quality of sound and music. This can help to make it easier to distinguish between different instruments and vocals in songs.
The best planar magnetic speakers can reproduce a wide spectrum of frequencies, including the bass frequencies. This can be a huge benefit for people who wish to enjoy music in a variety of settings. These speakers are more expensive than traditional loudspeakers, but provide a unique, immersive experience. They're also a good option for home theater systems.
The direction of the arrow is vital
When an electrical signal is positioned to the conductive trace patterns, the magnetic field creates diaphragm movement that generates sound waves. The movement is much more precise and controlled than traditional cone drivers, which allows for a wider frequency response. This allows planar speakers to produce more clarity and detail the music.
These diaphragms that are flat are available in two distinct designs: dipole (radiating in both directions, similar to electrostatics and Maggies) or monopole (radiating in just one direction, much like traditional dynamic speakers). This flexibility gives designers a wide range of options for wall or in-wall loudspeakers that could deliver exceptional performance at affordable costs.
The diaphragm in a planar magnetic driver is generally made from an ultra-thin, light polymer that is coated with a copper circuit that conducts electricity. The diaphragm with metal is enclosed by magnets in bars that are widely spaced. These magnets create a strong magnetic field that can attract and disperse air particles in the diaphragm. The magnetic fields help radiate the heat away from speaker without straining the voice coil.
Planar magnetic speakers have greater sensitivity than traditional cone speakers, and they can handle large amounts of power without overheating. They also have a low impedance, which means they require less amplification to achieve the same listening quality. They are able to reproduce the entire spectrum of audio frequency including highs and bass. They are often enhanced with boxed subwoofers, which can reproduce low frequency sounds with greater accuracy.
One of the drawbacks of single-ended planar magnetic loudspeakers is their relatively poor damping. This can cause high-Q resonances in the low frequency range of the speaker response, which may color the sound. This issue can be addressed through a hybrid design that blends the advantages of planar and dipole technology.
Proper placement of a planar magnetic speaker in an area is one of the most crucial factors that determine its performance. This affects several characteristics of sound, including bass response imaging, soundstage depth and breadth. It is important to avoid toe-ins, since it can adversely affect the midrange and highs. The speaker should be located where the central image narrows the greatest.