I don't know if it's because my ears are not flexible enough or if the product I chose is not that professional. Two friends of Xiao Zhu are currently worried about their newly purchased sound products. They always feel that since buying their own equipment, they haven't heard that professional feeling, and I can't find the reason behind it. In a moment of desperation, the two immortals found Xiao Zhu and coaxed him to go to various places to help debug the sound, but they realized they couldn't handle the problem. Besides where to eat for dinner, the calm little Zhu's first question to them was, "Are you ready to use sound X
Purchasing article - Innate elements are very important: When it comes to household sound, it really depends on usage and selection. After all, we are not DIY sound experts yet. Instead, we mostly purchase ready-made products, which are usually pre manufactured and packaged by manufacturers. Therefore, how to choose and configure a sound with a "natural constitution" is the first thing we need to do.
An ordinary household sound system can be divided into three main parts: sound source, amplifier, and sound unit. As a household use, the audio source can be selected from common disc players or professional CD players. We generally do not advocate the use of MD players. Although the sound quality of MD is not much different from that of CD from an auditory perspective, the sound of MD is a compressed and transcribed product, and the music capacity is much smaller than that of CD. If the volume is smaller, there will naturally be losses, and it is still different from the most authentic CD and DVD players. If you choose a DVD player, the 5.1-channel jack on the back is absolutely essential, and support for Dolby AC-3 decoding and DTS decoding should also be provided. Do not choose products with built-in amplifiers.
The selection of power amplifier is certainly important, but there is an important criterion that power amplifier and speaker should try to achieve "power matching and impedance matching". Simply put, the amplifier and speaker are the relationship between a horse and a car. Whether it's a "big horse pulling a small car" or a "small horse pulling a big car", it can seriously affect the efficiency of the system and even damage system components. Therefore, matching standards are the first thing to do. Otherwise, the speaker system will either appear weak, dry, or hoarse. In addition to pure music amplifiers, AV amplifiers are widely used for home audio or home theater applications. However, as all the amplifiers of the speaker units are concentrated here, their performance in different frequency ranges of high, medium, and low will be limited, depending on what kind of sound you value more. Normally, we advocate that the maximum output power of the amplifier should be 1.5 times the rated power of the speaker, and the multiplier requirement for the bass section should be higher.
However, it is important to avoid using amplifiers to "find" speakers when matching sound. Speakers can be said to be the most important part of sound, after all, the "voice" of the entire system is here, and even the slightest difference in texture will directly affect the final sound quality performance. Therefore, we advocate choosing speakers first and then selecting amplifiers.
At present, the speaker products on the market are mainly composed of two parts: the unit and the box, which are divided into high-frequency unit, mid-range unit, low-frequency unit, and subwoofer unit according to their composition. The enclosure is the first part of the speaker that we see and come into contact with. Technically speaking, wooden boxes have better sound effects than boxes made of other materials, and solid wood boxes are the top grade among wooden boxes. When choosing a box, we can feel the sound and texture of the wooden board by tapping and moving it. The ordinary sound is clean and loud, and the sound effect of a box with a heavy feel is also better. The quality of pronunciation units depends on the expertise of each manufacturer. However, it is worth noting that the performance of silk diaphragm tweeters and metal diaphragm tweeters is better in high pitched areas, with clear and pleasant sound, good transient response, and can effectively enhance the transparency and penetration of high pitched audio. As for the mid to low frequency unit, paper or canvas diaphragms can be used. Due to the high elasticity of the material, the sound emitted is thicker and more elastic. In the selection of mid to low frequency units, especially bass units, attention should be paid to the flexible connection between the diaphragm edge and the bracket. The material is secondary, and the key is to check whether the diaphragm has enough vibration space on the bracket through tapping and touching. Especially for the bass unit, if the vibration amplitude is small, the diaphragm stroke will be relatively small, and the strength and elasticity of the bass will be greatly reduced.
Trial article - Be sure to listen to genuine CDs: Many people think that CDs belong to digital media, and even if they are pirated, the music quality will not be greatly affected, but the price is much lower. Therefore, they purchase pirated CDs to "enrich" their "fever" disc library.
In fact, pirated CDs are truly something that is neither visually appealing nor useful. Due to not being copied from the master disc, pirated discs often have missing or incorrect codes, and due to rough manufacturing, the sound restored from the sound is far less authentic than genuine discs. Some of the missing codes can be heard by the ear through the sound system, and it is obvious that the mid-range area is pale, while the high and low frequency areas are rough and stiff, making people not only unable to enjoy them, but also more anxious.
By the way, some people may ask: Shall I buy pirated discs and listen to popular music assemblies? This option is still feasible when you are not concerned about the situation where the CD player or DVD player burns out. In fact, Xiao Zhu thinks that buying pirated popular music is not only about burning the turntable, but also about not getting the original sound quality. In a sense, it is easier than listening to MP3.
Environment Chapter - Planning of Listening Room: Listening room is a "practice room" for household sound. Although it is called a listening room, it is actually just a room in our residence. But why do we call it a listening room? Due to its uniqueness from other rooms, special renovations were stopped for the purpose of listening.
Firstly, large spaces have great benefits for the propagation and extension of sound, so we advocate selecting listening rooms in rooms of 15 square meters or more. The height of the room should not be too high. Firstly, the cost of installing sound-absorbing materials is high, and secondly, sound diffusion in higher spaces can easily cause adverse reverberation.
Secondly, the listening room should be located in a location that is neither noisy nor disturbed by noise, to prevent noise from affecting the listening effect. Again, sound-absorbing materials must be installed, usually thick curtains, tapestries, and bookshelves can also have sound-absorbing effects. However, it is important to avoid overly thick sound-absorbing layers as they can significantly reduce the reverberation effect, as if listening to sound on a vast grassland with no return. Not only is the sound monotonous and boring, but it can also have a very negative impact on the positioning of the sound field. Speaking of which, we need to mention the role of tapestries. Tapestries are both decorative and sound-absorbing layers. Not only is it aesthetically pleasing and practical, but it can also be interchanged at any time based on the level of sound richness we feel. In addition, the structure and interior decoration of the room should not be too symmetrical, otherwise it is easy to form standing waves and resonances of local frequency bands in the room, which will destroy the balanced sound density in the sound field. Placement article - repeated attempts to create a sound field.
Moving the sound home is not just about casually placing a "pose" and everything will be fine. Including the bass unit, each 5.1 channel and 6 speakers should have their own positions. Central speakers are usually the mainstay of vocals, so their role cannot be ignored. Generally speaking, it is best to place the center speaker in front of the visual center of the listening room, such as above the television. However, due to the mutual influence between the speaker magnetic cylinder and the TV magnetic field, as well as the vibration of the speaker and the TV casing, direct placement usually produces poor sound quality. Therefore, we advocate that the center speaker can be placed on a separate bracket slightly higher than the TV, and the position should not be too high. There are no front or back restrictions on screens such as projection screens.
The position of the left and right main speakers needs to be symmetrically planned on both sides of the center speaker, with a distance not too close. It is best to have a circular arc shape with the listening position as the center when separating them from the center speaker. The upper and lower positions should be based on the central axis of the high-frequency unit in the main speaker, which is 0.3 meters above and below the center speaker. Placing it directly on the ground or ceiling in a similar way can cause the mid-range position to deviate from the optimal angle, making the sound field feel chaotic. If using a bookshelf speaker, it is best to install a bracket without a speaker cabinet to ensure that the height of the speaker is appropriate.
The function of surround speakers is mostly to create diffusion and breadth of the sound field, so it is more suitable to place them about half a meter away from the top. Please adjust the presented sound field according to your personal opinion. Due to its weak directionality, the placement of the bass unit is generally not strictly required. If you are not a professional enthusiast, the position of the subwoofer only needs to be unobstructed.
Break in Chapter - Sound Break in Requirements Step by Step: The use of sound, like cars, also requires a break in period, especially for newly purchased sound systems. In the initial stage of use, do not use it as a karaoke hall speaker and turn up the sound too loud. We suggest that you control the volume to about a quarter of the maximum output during the initial use, and after 72 hours of use, you can appropriately increase the output to about half. We usually do not recommend that you turn up the volume to more than two-thirds to stop using it. When the volume is too high, not only will it exceed the optimal output state of the sound unit's rated power, but the overly strong sound field is also not conducive to the positioning and performance of various timbres and instrument sounds. It can only sound like a mess, with nothing but a shocking momentum and no aesthetic appeal.