Before we introduced some issues related to the acoustic treatment of home theater decoration: "Old Snail: Talking about the Acoustic Treatment of Home Theater Decoration", this article does not systematically explain, but emphasizes 9 very important issues. I hope that everyone will pay more attention to debugging better home theater sound effects.
Place the speaker
The correct placement of the speakers is the key to good sound reproduction in the room. If you can follow the introduction of the speaker placement in the previous sections of this chapter, it will take a few hours to try to find the proper placement position for the speaker, which will not only achieve good sound reproduction, but also increase the number of sound reproduction effects. Listening to the experience and being able to hear the difference in sound quality. All room acoustics processing is based on the proper placement of the speakers. If the speakers are placed in the wrong position, all the rest of the effort is futile.
2. The length, width and height of the room should have a good proportion
Although in most cases, the room is already built. The ratio of length, width and height has already been fixed. However, if there is a chance to select a room for the listening room, it is best to refer to the ratio of the length, width and height of the room listed in section 3.1 of this chapter in order to avoid standing waves as much as possible. Because this is also a selection condition for the audio equipment to obtain good sound reproduction.
3. Try to avoid bare parallel surfaces
If there are bright, face-to-face parallel surfaces without any acoustic treatment in the room, you will hear multiple breaths. Simply apply a sound absorbing material to one of the surfaces, such as sound absorbing foam, ASC's sound absorbing material that eliminates multiple echoes, a small piece of tapestry or carpet-like sound absorbing material, especially ASC's Tube. Special sound absorbing equipment such as Trap can absorb bass at the same time, allowing the reflected sound waves of the side wall to spread and eliminate multiple echoes.
4. Absorb or scatter reflections from side walls and floors
Try to lay a carpet on the smooth ground before the speaker and the speaker. Place some sound-absorbing or scattering sound waves on the side wall between the speaker and the listening position. Try to avoid reflections such as bare walls and windows near the speakers. surface. American ASC's Tower Trap sound tubes, various sound absorbing foams, and RPG diffuser screens can be effectively used to eliminate side wall reflections. The bookshelves placed on the side of the side wall also spread the sound waves well.
5. Keep the reflector away from the speaker
Audio racks, power amplifiers, furniture, and other objects placed near the speakers can degrade the sound and sound fields. Therefore, you have to try to move these objects away. For example, move to the back of the speaker. If they cannot be removed, they should be covered with sound absorbing materials.
6. Strive for a room with a very high height and a slope
Although it may not be possible, it is best if you can choose a room with a higher height and a slope to make a listening room. Such a room not only changes the indoor resonance mode between the floor and the ceiling, but also reduces the early reflection at the listening position, making the bass more round and round, and the space is more spacious. The speaker should be placed at the lower end of the ceiling.
7. Balance the absorption of treble and bass
Most rooms tend to absorb too much of the treble, while the absorption of the bass is not enough. Carpets, curtains, and soft furniture are used in conjunction with some materials that absorb bass to keep the reverberation time constant throughout the entire frequency band. Overweight and slow bass is caused by the imbalance of reverberation.
8. Move the listening position to achieve the best balance of bass
Standing waves will produce some constant high sound pressure and low sound pressure zones indoors. Try moving the listening position for the best balance. Avoid sitting in the ground near the back wall, because the bass here will be too heavy.
9. Use irregular planes or grotesque objects to disturb the remnant graphics
Deliberately placing some furniture or objects will help to disturb the standing waves formed in the room. Placing large pieces of furniture behind the listening position will spread the reflections of the back walls behind the listener.
I believe that after careful matching and adjustment, you will be able to receive a perfect home theater. If you are interested in home theater, join us, Home Theater Network official WeChat: cnhifi, home theater club (QQ group) 173801483.
Door Lock Motor Characteristics 1. No direction: don't need to distinguish the door direction, left and right sides, both inside and outside the door, can be universal. (convenient purchase locks and reduce inventory).
2. Power: the power consumption is only equivalent to one 5 of the electric control lock, electric lock, 3 A magnetic lock power to open the door, often consumes 0.27 A. And spiritual lock unlock instantaneous current is less than 0.5 A, reduced the entrance guard, talkback host power consumption.
3. No collision: close the door without collision, reduces the choice of door closers requirements (not necessarily with 65 kg of door closers, door closers are free to choose to suit the door), to solve the building door because the door closers clash of the hydrodynamic force is too high, it is not easy to make the door more deformation, prolong the service life of the body.
4. The voice is light: close the door automatically locked, no noise, solves the noise due to electric control lock itself.
5. Life is long, life is up to 350000 times
Operating temperature range:
Mini Door Lock Motor should be used at a temperature of -10~60℃.
The figures stated in the catalog specifications are based on use at ordinary room temperature catalog specifications re based on use at ordinary room temperature (approximately20~25℃.
If a Lock Motor is used outside the prescribed temperature range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.Depending on the temperature conditions ,it may be possible to deal with them by changing the grease of the motor's parts.Please feel free to consult with us about this.
Storage temperature range:
lock motor should be stored ta a temperature of -15~65℃.
In case of storage outside this range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.
Service life:
The longevity of Door Lock Motor is greatly affected by the load conditions , the mode of operation,the environment of use ,etc.Therefore,it is necessary to check the conditions under which the product will actually be used .The following conditions will have a negative effect on longevity.Please consult with us should any of them apply.
â—Use with a load that exceeds the rated torque
â—Frequent starting
â—Momentary reversals of turning direction
â—Impact loads
â—Long-term continuous operation
â—Forced turning using the output shaft
â—Use in which the permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive ,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage that is nonstandard as regards the rated voltage
â—Use outside the prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with us about these or any other conditions of use that may apply,so that we can be sure that you select the most appropriate model.
when it come to volume production,we're a major player as well .each month,we rurn out 600000 units,all of which are compliant with the rohs directive.Have any questions or special needed, please contact us, we have the engineer group and best sales department to service to you
Looking forward to your inquiry. Welcome to our factory.
Door Lock Motor
Door Lock Motor,Mini Door Lock Motor,Door Lock Dc Motor,Door Lock Gear Motor
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