Speaker development history

Since the dawn of human dream, we always try hope that one day I can leave the sounds of nature, hidden in the bosom, even will they repeat playback. The hope to try to finally got his wish is human in electric and acoustic exploration gradually worked, gradual growth process. 

Electrostatic speaker:        　　

In order to better tell the story of human acoustic history story, us from first to start with the human voice to convey to the distance of "telephone". More than one hundred years ago in February 14, 1876, Graham Bell Alexander proposed the most important one in the history of the patent". The invention makes the human voice could then spread to shout farther than, humans also henceforth know the conversion relation between acoustic and electric, and since bored.        

In order to record the sound of the record, in 1910, G. Brown S. will drive the force and the vibration membrane separation, and the invention of the armature armature earphone.        　　

Balanced armature earphone:        　　

And in 1910, Baldwin invented the armature balanced; balanced armature headphones. Armature earphone is in the middle of a U-shaped magnet of the erection of a movable iron piece (armature), when the current flowing through the coil armature will by magnetization with the magnets to generate attraction and repulsion phenomenon, and simultaneously drives the diaphragm movement. This design is low cost, although the effect is not good, but at that time was the invention of the invention, the technology used in the phone and small headphones.

In recording sound technology, in 1917, Wente and Thuras designed a condenser microphone.    　

To the last century 30's in the medium, according to the principle of the condenser microphone, electrostatic speakers available. In the early 50's, the United States V. Bocciarelli proposed constant; charge C.; constant charge rule. Walker P. developed the same theory in the same time, and applied it to the famous Quad electrostatic speaker design.        　　

The basic principle of the electrostatic acoustic device is Kulun (Coulomb) law, usually with the plastic film and aluminum and other electric sensitive material vacuum vaporization treatment, the two diaphragm face to face, when one of the two is a positive current high voltage when the other will be sensing a small current, with the attraction of each other to promote the air can make a sound. Because of the low quality and small vibration, the static electricity speaker works in the middle and high frequency section, the quality is light and delicate, and has a characteristic, it is easy to get a clear and transparent medium. But its efficiency is not high, low pressure output, dynamic small, the cost is more expensive but also its weaknesses.        　　

Electric speaker:        　　

And Bell same period, different speaker types are presented. As an amateur interest, W. Siemens Ernst (&amp Siemens; founder of Halske) in January 20, 1874, the application of the electric speaker prototype patent, so that the sound coil with support system is in a magnetic field, so that the vibration system to maintain axial motion. At that time was mainly used for the relay rather than the speaker. On December 14, 1877, Siemens for horn patent, on top of a moving coil attached to a parchment as sound radiator and parchment paper can be made of exponential type cone shape, the first gramophone age horn type.    

In 1898, Lodge Oliver applied for the first practical electric speaker patent, and the voice coil in the magnetic gap of the internal and external circle plate movement, and many inventions, at that time, this great invention is too far ahead. This invention determines the structure of the 99% modern loudspeaker now.    　

It's been 25 years since the last century 20's, radio broadcast. C. W. rice and E. W. Kellogg published a landmark paper new type non horn unit and detailed introduce the direct radiator loudspeaker, using this theory to design the price for 104 speakers Radiola $250 of the craze in America.    

In the past fifty years, the basic principle of electric speakers has not changed, but improved the design details and parts. In terms of frequency range dynamic range compared with the old product has made great progress. Electric speakers with a simple structure, excellent quality, low cost, dynamic has become the mainstream of the current market.        　　

Horn loudspeaker:        　　

Horn loudspeaker originated from the phonograph. In 1928, Wente and Thuras produced the horn loudspeaker receiver their efficiency. Horn type speaker principle is diaphragm drive located in at the bottom of the horn of the air, because of the acoustic resistance is very big, so the efficiency is very high, but because of the shape and the length of the horn will affect the timbre to low frequency rebroadcasts and not too easy. Today, high efficiency of the horn is mainly used in professional sound field.        

Belt type loudspeaker:        　　

In the above-mentioned speaker technology gradually forming, people began to understand the ideal transducer should be used to pass through the thin film, we begin to design the belt type speaker.        　

In January 1923, Halske Schottky Siemens and Gerlach applied for the first band type speaker patent. It will be a horizontal wave type pure aluminum thin film is installed between the poles of the magnet, the wave shaped pure aluminum film can reduce the longitudinal rigidity, reduce the resonance frequency.        　　

In 1931, Olson and Massa produced a band type microphone.        　　

Belt type loudspeaker is mainly used in high frequency, because of its frequency response curve is flat, high frequency high ceiling, the transient effect very good, it is convenient for the formation of linear sound source.        　　

Although human acoustic history is so complicated, but now really emerged many outstanding innovative electroacoustic loudspeaker, and in fact, these innovative loudspeaker design let many century best electroacoustic scientists racked their brains.        　　

In 1997, Huiwei HiVi (Canada) will be 0.005 mm aluminum circuit vapor coating etching to the top of the high strength Kapton film, with neodymium iron boron magnet composition matrix plane magnetic push-pull driving, radically improved the traditional pure aluminum belt type loudspeaker diaphragm strength low, need to be equipped with an impedance transformer, output power was low and short service life of congenital defects.        　

In 2001, Huiwei development the sensitivity up to 103 dB of professional sound reinforcement with loudspeaker R2pro! And launched a world first wide radiation angle of multi unit system of professional Pro1808! Officially belt type loudspeaker is introduced into the field of professional sound reinforcement.    

In 2003, Hivi developed the world's first two-way Mid-High S1 2-Way Range Driver Coaxial (Ribbon) in the middle of the world's first two. This is simply a genius design, it clever to electrodynamic loudspeaker diaphragm and a folding ring fused together, with this design, audio manufacturer who can produce more high quality speakers, because such a coaxial tweeter from the mid to high frequency are extremely flat frequency response and excellent music texture, is absolutely the best speakers are a dime!    

In 2005, Hivi developed the world's first three 3-Way Trinity6 Driver Range Ribbon Coaxial (Full). This is a large speaker unit, unit bass voice coil diameter up to 3 inches! It is the fusion of the traditional diaphragm and Huiwei with coaxial unit advantage, can make a unit of frequency response becomes very broad, from low frequency spans to high frequency. Trinity6 from some kind of meaning has become a perfect body of sound, the playback frequency range across the full band and vocal concurrent coaxial can said the birth of Huiwei Trinity6 means the history of the development of human electroacoustic ushered in a new page!    　

Since the last century Huiwei development the magnetic belt speakers, Huiwei has been the world's largest magnetic belt type loudspeaker manufacturers, and for many of the world's well-known brands to provide various kinds of electro acoustic products. To further extend the low frequency playback, Huiwei in 2005, and the development of the new super bass driver, will be placed in to listen to the sound foot sofa seat, you can directly feel the earth and the mountains shake the ultra low frequency vibration.        　　

Electroacoustic changing human life and change the future of the human race. We are looking forward to the future more electro acoustic converter were invented and change the human way of entertainment, in the human arms and make EarthSound real.