1. How to place 2.1 speakers
The best placement: two small speakers are placed on both sides, and the subwoofer is placed in the middle of the two small speakers.
The 2.1 speaker is composed of a bass speaker (generally called a subwoofer) and a pair of full-range speakers with weak bass (generally called a satellite box). frequency division.
The “2” in “2.1” refers to standard two-channel (stereo); the “.1” in “2.1” refers to the “bass” channel with a separate frequency division output generally below 100Hz . Generally speaking, 2.1 speakers belong to the middle and low-end products of speakers (not entirely certain).
The size of the caliber is usually 1 inch for the tweeter unit of the satellite box, 3 inches for the mid-bass unit, and 5 inches or even 6.5 inches for the subwoofer unit in this grade, it should be a better one. class products.
2. 2.1 Audio placement, angle, height and precautions
1. Placement
(1) The placement of speakers is also a matter of distance. For the 2.1 system, just place the two speakers in front of the listener, and keep the two speakers separated by about two meters. The connection between the two speakers is used as the base of the triangle, and the listener is used as the vertex of the triangle. The person and the two speakers can form an equilateral triangle.
(2) It should be reminded that the two speakers should not be too close to the human ear. If it is too close, what the human ear hears is only the direct sound field from the loudspeaker, without reflections from objects in the surrounding space. The mixed effect of this reflection is called interactive reverberation. It is based on these changes that we can judge the surrounding environment, and the human ear feels more real to such a sound. Without reverberation, the sound will sound dry, and even with some reflections, if the distance is too close, the diffracted sound will be masked out.
(3) Another point to remind is that the two speakers must not be against the wall, because most of the 2.1 bookshelf speakers are behind the port. If the sound waves cannot be fully released, the effect of the sound field will be greatly reduced. In addition to the constant angle, the equilateral triangle formed by the 2.1 bookshelf speaker and the listener can be large or small. If the room is small and the power of the rear stage of the speaker is not large, the triangle can be appropriately smaller; when the room is large and the power of the rear stage is large, the equilateral triangle can be enlarged.
2. Placement angle
The left and right speakers should be centered on the viewer, within an angle of 45 to 60 degrees. Generally speaking, the left and right speakers should preferably be at an angle of about 45° with the human ear. If the speaker is too close to the listener, the sound field positioning is not accurate enough, and there is a phase difference between the high and low frequency units, and the sound cannot be synchronized. Too far away, and the sound field becomes narrower, losing the sense of space and presence.
In terms of practical use. If it is mainly used for watching movies, it is recommended that the angle be around 45°, which is the angle used when monitoring the soundtrack of the movie. If you mainly listen to music, you can increase the distance between the left and right speakers to about 60° to obtain a larger listening angle.
3. Placement height
Another important question is which surface should the speakers be placed on? If the height of the speaker is not ideal, it will greatly affect the listening experience. For 2.1 bookshelf speakers, especially some medium and high-end bookshelf speakers, it is strongly recommended that you use speaker brackets, which not only can obtain excellent sound quality, but also can adjust the height very conveniently.
As for the choice of position, according to a relatively consistent view, the tweeter of the bookshelf speaker should basically be flush with the human ear. However, note that due to the difference in the sensitivity and positioning of the human ear to sound, and the performance of the speakers are different, you can make slight fine-tuning in this principle, so as to not only conform to your own listening habits, but also fully Unleash the performance of your speakers.
In general, the equilateral triangle placement method can keep the distance between the listener and the speaker at about two meters when listening. Its biggest advantage is that it can reduce the reflection of the wall on the speaker. Excessive interference, you can get a good sense of positioning and a wide and deep sound field. If you want to simply enjoy the music, then using the 2.1 speakers in the right triangle is undoubtedly the way to hear the most, the most direct, and the clearest details.
3. Two considerations for speaker system placement
(1) The placement of the subwoofer should try to avoid placing the speakers on the wall. for equidistant locations. For example, if the room is 4 meters wide, it is best not to place the subwoofers 2 meters from each side of the wall.
(2) The speakers should not be placed near the corner of the wall and at the same distance from the side wall and the rear wall. The relationship between the speakers and the wall should be unequal. Such as 1/3, 1/5 or 2/5 of the distance from the side or back wall. Due to the enhanced low frequency interleaving at this time, the bass will be more rounded and rounded. In short, the position of the subwoofer should be placed so that the bass sounds rich, round and smooth and natural.
