Features and application of horn type loudspeaker, installation skills of horn type loudspeaker Replacement Diaphragm.
Characteristics and Application of Horn Loudspeaker
The disadvantages of horn speaker are poor low frequency response, narrow frequency band and easy to produce nonlinear distortion. The main difference between the horn type speaker and the paper basin electric type speaker is indirect radiation, that is, after the vibration of the vibrating film, the sound will spread outward through the horn, which will greatly enhance the sound, and make the sound spread in one direction, making the sound spread farther.
Installation skills of sound film of trumpet PA loudspeaker
The horn speaker is still widely used in some markets in rural and urban areas. Once the sound film of the horn speaker is lost, it is necessary to ensure the correct installation of the sound film position. Here is a method that can easily solve this problem. The installation can be carried out in two steps.
The first step is to select the paper with appropriate thickness and cut two strips of paper with a loose length of about 10mm and a length of 20mm larger than the diameter of the center piece. Then put the two strips of paper on the center piece vertically (the position should be taken in the middle). To prevent them from moving, stick them with a little paste. Insert both ends of the strip into the magnetic gap. Align the voice coil on the sound film with the magnetic gap and press it down gently. Due to the existence of the paper, the position of the voice coil is just in the middle of the magnetic gap, and will not be skewed. Apply the adhesive on the edge of the sound film and cover the upper cover of the sound head. Align the screw hole and tighten the screw. And record the relative position of the upper cover and the sound head at the appropriate position. Leave it for 8 hours. After the all-purpose adhesive is completely dry, unscrew the screws and remove the upper cover. At this time, the sound film has been stuck on the upper cover.
The second step is to weld the lead wire to the terminal post. Take down two pieces of paper, and then cover the upper cover back. Pay attention to the original marks. The multimeter R can be used at this time × With a 1.5V dry battery, while constantly touching the two terminals, make a "click" sound, while gently tapping the upper cover until the "click" sound reaches the maximum, and there is no friction sound, then gradually tighten the fixing screws. When screwing in the screws, the screws should be rotated and tightened symmetrically, instead of screwing in the second screw after screwing in one screw very tightly.
Types of trumpet speakers
It is divided into electric horn speaker, piezoelectric horn speaker and electrostatic horn speaker according to the energy conversion mode.
According to the shape of the diaphragm, it is divided into spherical dome horn speaker and anti-spherical dome horn speaker.
According to the shape of the horn, it can be divided into cylindrical horn, conical horn, rectangular horn, parabolic horn, flat horn, multi-cell horn, etc.
With regard to the horn speaker, the electronic components are introduced. If you have any ideas, please contact Xiao Bian.
