First of all, it costs more than a thousand yuan (calculated in a space of 16m2) to ask the carpenter to nail the four walls of the room with gypsum board. Why do you need to nail the gypsum board? Because after nailing another layer of plasterboard on the four cement walls, the space will be changed from hard to soft. The soft-tuned space is the basis of the sound. Note that the gap between the gypsum board and the cement wall should be covered with heavier glass fiber wool to absorb the vibration sound waves in the cavity. It doesn't have to be stuffed up, just spread a loose layer. When nailing gypsum board, avoid doors and windows, and then finish painting. If the budget is sufficient, it is best to make another layer of aluminum windows on the window to isolate the noise, and replace with double-layer windows with better sound insulation.
After the soft-tuned space conversion, use the regular triangle pendulum method to avoid the influence of space factors; make the power amplifier close to the speaker and save the power of the amplifier. There will be standing waves in any room. Small spaces are more harmful, and the reflected sounds reflected from the two side walls of the small spaces are both strong and strong, which will cause side effects of positioning drift and harsh sounds. If the speakers are placed in the center of the room, and the two speakers are away from the side wall, the reflected sound of the side wall will be greatly reduced.
Some people may doubt: the listening position is so close to the speakers, is it not the sound of the two speakers that the ear hears? Absolutely not. What you hear will be the sound reproduced by the entire sound field behind the speakers. Note: The so-called regular triangle does not mean that you must arrange the listening position and the speaker into a regular triangle, but rather use the regular triangle as the starting point for placement. Users usually tend to place the listening position closer to the speaker.
For a long time, people have always emphasized the importance of listening space and speaker placement. However, many users are too lazy to try, and would rather spend money to replace equipment or wire. In fact, before replacing the equipment, try a variety of different speaker placements, which will definitely bring unexpected sound effects.
Excerpt from "Sound Technology"
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