Pooh's Do not burn video and audio tour articles: sun drying the study and the desktop is not burning, that is, this set does not intend to continue to upgrade the DAC, two rooms, turntable, amplifier. . . Doing more will only add to the study Although Libra does not have obsessive-compulsive disorder, but still like the clean work / game environment In short, the desktop system is finalized, sufficient enough () Pooh sauce debut ↓ ✪ ω ✪ ✪ ✪ ✪ ✪ ✪ happy New Year! --------------------------------------- Likes 724 Comments407 Collections2kView details Due to the commercial purpose of the current market, the concept of audio-visual equipment has been continuously confused, and even mobile phones and televisions dare to call themselves HIFI.
Even multimedia, Bluetooth speakers have to add a certain certification to appear tall
Therefore, I think it is necessary to emphasize this point. Traditionally, HIFI and AV are separated.
From the most basic acoustic environment, the requirements of HIFI and AV are different
However, due to the fact that the matter was so old and difficult to live, the fans I’ve seen were still based on the living room party.
Therefore, the core goal of the individual is to achieve the harmony and harmonization as much as possible on the basis of building a cinema.
Of course, we have conditions to prepare two rooms:
An AV theater (movie, game), a HIFI listening room (conference tea)However, the premise is more! many! earn! money! I wish you all a fortune for the new year and a lot of good luck!
The opinions in this article are very rich in personalities. If you have different opinions, please feel free to take a look at the bricks.
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First, planningAfter graduating, he was ready to purchase a new house. Eventually he chose a house with a top floor and a loft and a garden. He stayed downstairs and stayed at home. There was a video room in the upstairs, drinking tea, cats, and flowers. The only regret was that there was no disturbance to the living room party. That is, the attic belongs to the top of an irregular triangle slope. In the future, it will have a negative impact on acoustics.
The room is about 5.4m*4.5m. When it was renovated, as Xiaobai, my first consideration was sound absorption to avoid disturbing the people.
In fact, this is a big mistake. There is no distinction between sound insulation and sound absorption:
The difference between sound absorption of materials and sound insulation of materials is that sound absorption of materials is focused on the amount of reflected sound energy on one side of the sound source, and the goal is to reduce the reflected sound energy. The material soundproofing focuses on the amount of transmitted acoustic energy on the other side of the incident sound source. The goal is that the transmission sound energy is small. Absorption and absorption of incident sound energy by the sound-absorbing material is generally only a few tenths. Therefore, the sound-absorption capacity, that is, the sound-absorption coefficient can be represented by a decimal number, and the sound-insulating material can attenuate the transmitted sound energy to the incident sound energy by 10-3. ~10-4 or less, for sound expression, the amount of sound insulation is expressed in decibels.
In short, it is sound insulation that can avoid disturbances and sound absorption can avoid indoor echo. Don't be confused! Very important! ! !
Due to the eagerness to decorate, the design fees of the audio-visual room are high, and due to the schedule and cost, they do not have time to select materials. . Saying good brown finally made his father like this. . In short, it is the product of various compromises. .
What kind of ghost aunt ah!
Because the map is cheap. . Whole house whole floor sound-absorbing board bought locally
In the end, I can only go for Chinese-style remedies that I don't like. . .
Putting aside color and acoustic problems, this plywood room is filled with instant gas chambers.
Is this trying to kill my own son?
Solution...
Fresh air system + purifier, 24 hours boot, thanks to his own environmental engineering company, fresh air to get:
Panasonic 15pma model, the most classic PM2.5 HEPA model, roughly calculated ventilation conditions:
Air volume 150*2 ÷ (25 square * 3m height) = 300/75 = room ventilation 4 times/hour
This ventilation efficiency is moderate, but in the summer plus window and downstairs positive pressure system
Theoretically, it can meet the need of ventilation
Because the loft is not easy to install new air, from the picture point of view, the air supply and return air outlet are in a straight line, but the actual air outlet is used as the guide, and the actual effect will not be too bad.
In principle, it should be based on diffusion, supplemented by sound absorption.
Note that the sound processing here is only for the 125~8KHz frequency band
Too low materials can't be achieved, too high human ears can't recognize, and few instruments can reach
According to laboratory standards such as thx and Dolby, full frequency reverberation time should be 0.3-0.4s
In theory, the ideal sound-absorbing material only needs to be arranged in 20~30% of the total area of ​​the house to achieve
But taking into account the actual diffusion of sound, in particular, the superposition of audio frequencies below 80 Hz at the corner of the wall will produce diffraction-induced standing waves.
Therefore, sound-absorbing structures should be surrounded at the corners (low-frequency traps)
I am lazy and use the diffuser board as a trap
Effective, but not good enough! Phase II decoration to be improved
The number of diffusers I use is as follows:
Curved *10 Pyramid*2 Skull*1 Foam*6 Sound Absorption Board*2 Porous Acoustic Panel*ALL
That's right, there is less proliferation and too much absorption!
In the later period, the porous sound-absorbing panels will be dismantled in large areas and replaced with various types of diffusers.
In theory, it will be more full and resistant to hearing
Look at the picture to speak:
AV frequency response curve: There are obvious standing waves at 35Hz and 78Hz. It is very difficult to depress 12db at such a low frequency, but theoretically it is possible to use the subwoofer's own EQ pressure, or an external gun tube forces the curve flat.
AV reverberation curve: The problem is large. Due to the use of a single type of sound-absorbing panel over a large area, 500-2000Hz (main vocal main frequency) is over-absorbed. No reverberation means that the sound is dry, there is no saliva, and other frequency bands It is also difficult to see!
Hifi figure will not let go, but also miserable haha
1.3 CablingSince it is based on the AV system, it is mainly embedded in speaker cables (speaker cables).
First of all, to put it plainly, speaker cables are wires. One end connected to the amplifier, one end of the speaker line, transmitting the power signal. From the sound point of view, it is not recommended to purchase wires that are too cheap. Considering the process is not closed, the oxygen content of the wire is too high and the density is not uniform, which can lead to sound thin, sharp and easy to oxidize. On the other hand, if it is not high-end equipment, too expensive lines are not very necessary. Based on pragmatic principles, the recommended brands are Akihabara, Kaya and others. Choose a line of 8-20 RMB/meter. Since the manufacturing threshold is low and there are many fake lines on the market, we must pay attention to the resolution.
In addition, in addition to two shares, the speaker line also has four shares, it is highly recommended! reason:
The new Dolby Panasonic Atoms and DTS:X standards are beginning to gain popularity because of the inability of traditional next-generation audio tracks to satisfy humans
In order to better restore the sound field, the number of horns has risen from the original 5.1, 7.1 to 7.1.4, even 9.4.6
The high-end pre-class has supported 64 speakers and feels the following:
Therefore, the significance of the four-strand line is that it is more convenient to upgrade in the future, and it is possible to divide the four shares into two pairs of two strands directly from the original trunking.
Double the number of existing speakers without destroying the decoration and re-wiring
What’s more, the line of four shares is not much more expensive than the two lines of the same class, so take preventive measures and highly recommend it.
When I buried 7.1 lines with four shares, there was no pressure to upgrade 7.1.4 (although there were some open lines)
Canomei speaker cable | Taobao search s.taobao.com direct link 
With respect to the power cord, the speaker is originally a niche. Most of the top brands are European and American brands, and thus the industrialization concentration phenomenon has formed.
Can be understood as an international standard, so it is easier for American Standard power cords to buy products suitable for their own equipment.
The national standard line is mostly produced by Huaqiang North. . . Whether it is technological maturity or the options are too narrow
Therefore, the wall is plugged or the wire is selected as much as possible.
So isn't the good power cord expensive?Not necessarily! Remember, the sound is objective, but people are subjective
No good or bad, just like it or not.
So, don't argue about whether the wire is useful or not?
Dozens of machine lines are entirely possible to kill a few million top line, just depending on whether you like it or not.
So, the advice I gave was that, in practice, there is less Gatlin~
Find the most suitable one, according to the equipment with different prices of wire
The value of the wire, strip and panel in the above picture has been 5w+
(Kama and Yin Cai are borrowed)
The reason why wires and currents are demonized is because most people are self-righteous starting from "science."
However, the transmission of current and its principle remain at the stage of discussion.
Take an example of a linear power supply:
Look at the concept first:
The working process of the main circuit of the linear power supply is that the input power is first pre-regulated and stabilized by the pre-regulator circuit, and then the main working transformer isolates the rectifier and transforms it into a DC power supply, and then passes through the intelligent control of the control circuit and the single-chip microprocessor controller. The linear adjustment element is finely adjusted to output a highly accurate DC voltage source.
Advantages: stable performance, no interference such as high-frequency ripple.
Disadvantages: fever, low energy utilization. No super power supply is available.
In fact, it is easy to understand, in contrast, the traditional switching power supply power transistor works in the switching state, so the transistor power consumption is small, the conversion efficiency is high, generally 60 to 70%, while the linear power supply is only 30 to 40%. This is why almost all electrical appliances use switching power supplies (ie, built-in or external so-called transformers).
The switching power supply to the current degradation, we see the picture:
Obviously not a level of distortion
According to old friends, the voice of the horn is the product of the expansion of analog signals.
The analog signal comes from the decomposition of the digital signal (here specifically PC, CD, digital broadcast, LP does not contain analog signal source)
The distortion of each device, superimposed to the end, will cause great differences in sound quality
The current will play a decisive role in the distortion (another factor that is often overlooked is the suspension)
This is why Laoge says playing the speakers is the end of playing electricity.
I guess there will still be many wind, fire, nuclear, and water theories put forward by the Great God followers (///ω///)
I do not intend to reverse the case here, but I suggest rational thinking, rooted, not to be confused
Putting other wires aside, simply speaking about personal understanding of HDMIIt is worth mentioning that, do not know why, do less domestic HDMI evaluation
In the "Microcomputer" in 2010 has done a large evaluation (link)
The quality does not see the difference
In the foregoing, we explained the transmission method of digital signals as long as it can ensure that digital signals do not go wrong during transmission. It is impossible for the price of inexpensive wires and expensive wires to be different in the picture quality. Among the ten HDMI cables we evaluated, there are HDMI cables for cutting corners and materials, as well as cables that are solid and work well. They have no difference in display effects, whether they are in terms of resolution, color, or brightness. All exactly the same. At the very least, our eyes cannot identify those small differences. Most shimming HDMI cables do not require shielded cables in TDMS. This line has no effect on the function, but it has a large impact on signal quality. Fortunately, the cables we tested were relatively short in lengths of 1.8m and 2m, so there was no problem with the "cliff effect" and the BER error rate of the signal was within an acceptable range.
Abandon the era of the hdmi version of the low-end 1.4
From the 1.8m and 2m lengths of wire, 55-inch TVs, subjective evaluations and other words can be seen that the evaluation is actually not rigorous
Fair evaluation recommends using the mainstream length of more than 8m, more than 150 inches, manual exposure comparison with the frame
Unfortunately, in recent years there has been no more detailed evaluation
â–¼Please note: HDMI has two demarcation points, 8m and 15m exceed these two lengths, the corresponding production process will be different
Here is the concept of an AWG:
The AWG (American Wire Gauge) is an abbreviation of the American Wire Standard, and the AWG value represents the method of the cable diameter as a function of the wire thickness (in inches). The diameter is 24 AWG, which is about 0.511 mm. The data in front of the AWG indicates the number of holes to pass before the wire forms the final diameter. The larger the value, the more holes the wire passes through and the smaller the wire diameter. The thicker wire has better physical strength and lower resistance, but the thicker the wire, the more copper is needed to make the cable, which in turn leads to the cable sinking, more difficult to install, and more expensive. The challenge in cable design is to use the smallest possible diameter wire (reduced cost and installation complexity) while at the same time ensuring that the maximum capacity of the wire is achieved at the necessary voltage and frequency.
Therefore, in order to ensure signal transmission, please try to purchase 24AWG or 22AWG HDMI
As for the flat line or the round line, the impact is not great
I use Gordon still V6000s
American Golden Sound/Gao Dengshang V6000S hdmi 2.0 HD line 4K single crystal silver plated line 1216 yuan Lynx featured direct link Other wire rods are similar, but if they are sorted by the effect of wire investment, then individuals think that it should be:
Power Cable> Signal Cable> Speaker Cable> HDMI
1.5 Cabling
The author is av and hifi separately
Av on the left hand side, all wire wall
Hifi equipment on the front, all open lines
Therefore, when switching the system, it is necessary to manually unplug the speaker cable of the av system and replace the wire of the hifi system.
â–¼ This arrangement is due to several considerations:
All equipment is placed in front of a chaos and several cabinets must be set up;
Many devices have lights that interfere with the viewing experience;
Too much equipment can easily cover the curtain;
HIFI and AV are completely separated and do not interfere with each other (after 247, we do a full-time av and hifi chooses a pair of boxes. This is a hindsight)
The disadvantage is that it is more troublesome to change the line when switching the system. .
If you want to achieve no line changeover, you can use a signal line to solve (I have no wall, do not want to go the line):
Av merges the analog output to the hifi amplifier to push the main box (because the distance exceeds 5m, 1 pair of balance lines are needed)
When listening to music, cd directly output signal to hifi merge
When you switch the system, you only need to press the input switch key on the hifi combination (zax120 supports 6 sets of analog input)
2, build
My current equipment list:
Player: Popcorn VTEN+ Line
AV Power Amplifier: Tianlong X7200WA Port
Main speakers: German Yeli ELAC FS247
In the home: Germany Serie Elac FS241
Side Wrap: German Yeli ELAC BS243
Sky Sounds: German Yeli ELAC BS53.2*4
Surrounding: Swans D1080MKII
Subwoofer: United States SVS PB13u
Projection: Epson TW5200
CD: French YBA Passion 400
Digital broadcast: domestic rhyme Aries mini
HIFI Amplifier: Italian Retach ZAX-120
Others: PS4, HTPC, Hard Disk Enclosure*2, Base*3, Blu-ray Disc 50T, Mitsukoshi, Yinyue Department Store, Jazz Rack, etc.
Because the level (financial qqq) is limited, the idea of ​​collocation is of course within a limited budget, as far as possible to take into account the cinema and music.
The three big parts will get their heads first and the back will be easier to handle.
In particular, it is recommended that the main box be set before the first burning, and then consider other collocations
Even taking a step back, taking me as an example, when I started with only 30,000
I will not buy the so-called 7.1 suit (this range contains the Jazz reference, Jamo 5 Series and other popular collocation)
But look at the higher level, go and buy a pair of HIFI boxes that are as good as possible to set the main tone for the full set!
The problem that money can solve is not a problem. In the words of our securities industry, it is called time for space:)
2.1.1 SpeakerAn excellent home theater performance standard includes the ability to reproduce clear dialogue, accurate sound localization, full spatial surround sound, smooth panning movement, balanced sound, wide dynamic range, and the speakers seem to disappear completely. The seats have a good effect.
Putting aside these abstract phrases, personal understanding is: fast, deep dive, high frequency, and easy to promote.
Substituting these features into the HIFI speakers, within the class of 20,000 yuan, I finally locked up the German ELAC.
In the picture is due to the summer penthouse is too hot, the picture taken when moving the box to the living room, ELAC's 240 series is the biggest feature is the partial listening, and the same level of the box, such as the Tanner profile, Jinlang 948, Dani's IKON6 In contrast, the ELAC240's feelings are not strong, just like the white knight, faithfully restoring the sentimental voice, unlike the thick and warm like Tanner, and not as daring and daring as Dani, it's 4 Euro, the parameter of 89db is relatively Easy to drive, 15W amplifier is enough to push the wind. However, the price to pay is the large dynamics, metal clip cone unit is not easy to control, the higher the power amplifier requirements.
My own measured frequency response curve, the author combined with Italy's Reita 120w small merger, five-inch diameter can be submerged to 30Hz no attenuation, hearing, big dynamic, can obviously feel the rocking sofa. High-frequency is very pleasing, but it is not easy to push, but it is easy to "bright," so you need to pay attention to collocation.
Power amplifiers are more complicated to say, and they are mainly divided into three categories: front/back, amplifiers, and merger machines.
I use the Lextor Rita merged power amplifier from the Italian hand-built zax-120
Output power: 120W (8Ω) 180w (4Ω)
Signal to noise ratio: > 100 dB
Distortion: 0.01%
Frequency Response Range: 10-50 Khz +/- 1.5 db
Volume: 400*400*100mm
Weight: 12KG
The power amplifier is used, the cost performance is very high, but due to the oxidation of the old machine potentiometer, I once took it to the n brother of the speaker store to help
Nangge opened it up, the first sentence is, this power amplifier in accordance with the standards of domestic manufacturers, selling more than 7000, 4 Toshiba large, power up to only 70w, you see this work, not as good as the level of domestic small factories.
I said: Brother, either try on the machine, you listen?
Then, after booting up, n brother frowned and said that the power amplifier abroad was indeed a good way to do it, and the voice was very sweet.
To illustrate this example, I want to make it clear that there is no shortage of technology in the country but a lack of accumulation of some cultures and industries.
We can learn to build cars from Toyota. We will seek inspiration from Apple's innovation to develop our own Android interface.
We will assemble Chinese-made products all over the world, but there are some things that cannot be learned in a short time.
That is the people’s understanding and pursuit of music
Without good tuning, no matter how good the hardware is, the straight curve still lacks emotions.
I hope that one day, Chinese-style education can really change its outlook, and that pressing for quick successes and gains can not lead to genius
A relaxed and free environment can create creativity, and creativity can never be imitated and re-engraved
------------------------------------------
The topic is farther away. The so-called merger machine is to merge the front stage and the rear stage into a single chassis.
The front stage is used to amplify the analog signal input from the audio source and perform an amplification to enter the later stage
The actual effect of the rear stage is similar to that of the engine, and the received signal is used as a form of work to drive the speaker unit for piston movement.
However, there are often no pre-classes, and the audio source with the pre-stage output can also be used directly at the later stage.
But the effect will not be too good (the module must be simple and the electromagnetic interference is serious)
Therefore, only from the cost considerations, before and after the same level is certainly more expensive than the merger machine, so it is still based on the wallet to choose.
A simple proposal is given before and after the budget of 50,000 or more is considered, and a combination of 50,000 yuan or less is sufficient.
2.2 About Center and Surround:Regarding the selection of boxes outside the main box, if you ask some old fire, you will probably get the same answer for all units.
The main box and the surround are consistent, and indeed a more consistent and consistent sound field can be obtained.
However, the personal suggestion is that there is no need to insist on unity!
More than 60% of voices in the av system come from the center
Therefore, if conditions permit, you should completely choose a higher-level, thicker, faster mid-range model.
Such as:
JBL LSC/Ya Rui 880
Barrydon CC-590/CC-690/Signature C5
Ceske RC62/64II/P-27C
Surround and main tank model can be the same.
2.1.3 SourceAs mentioned above, whether it is a sound source (CD players, digital broadcasters, or LP players) or video sources (players, TV boxes, CD players) is an important part. At present, I mainly use CDs as my mainstay. Supplementary:
Yba passion 400_ Taobao search machine has been discontinued for a long time, Taobao did not sell, casual reference s.taobao.com direct link 
The YBA Passion 400cd machine from France uses the Philips CD Pro II top-level turntable, which requires two-way power supply. The mechanical part and the line part are separately powered. The mechanical part is provided by normal external power supply. The line part uses the self-provisioned power supply to provide 32V DC power. A layer of power shielding shielding naturally brings a darker background. In general, yba is a very individual brand, and even the equipment is no longer rigidly adhered to the music itself. According to its own statement, this is not a cd player, but a Piece "instrument"! Compared to the Marantz 6005 previously used, the yba tri-band is very balanced. It will not be tired after listening for a long time, especially at high frequencies. It is very smooth, and it doesn't carry a little bit of hair. It seems to be performed for each cd. Careful pruning, thanks to the comprehensiveness and balance of the machine, listening to the 3-7 chapters of the Caribbean 1ost, the low frequency is no longer disorganized, but the formation of a ball of energy from the crowd, very shocked! As for the vocal part, it made me re-understand the three discs of the 15th anniversary of Teresa Teng, Aunt Cai's old song and the voice of three blind mice. The original singer's feelings can be enriched! No matter whether Teresa Teng's gentleness or the calm and melodiousness of Tsai Chin have all been on the scene, the romance of the French soul is now integrated into the entire room. In general, I am satisfied with this machine!
As for the evaluation of the Little White Sheep, please refer to the local sunburnt brother's sunbathing list. We will not go into details here. The machine at this price point has nothing to say. It is not the case that the broadcasts go all the way to the dark. It is suggested that one person be added as a sound source.
The original innovator # AURALiC ARIES MINI digital music player out of the box & start the operation guide First briefly introduce ARIESMINI (Chinese name is Aries mini, but the following is still used Shaoyou habit of "Little White sheep" to say it). This is a product released and listed by AURALiC Voice in 2015. It is based on AURALiC's world-leading streaming media broadcasting platform and provides customers with a complete digital music playback experience based on constantly updated firmware and LightningDS software.支大胖å | Like 19 Comments 60 Favorites 133 View Details Like LP, digital broadcasting can't replace CD's status for a short time. If LP's strength is a linear string, CD is good at piano or vocal. , while the number of broadcast (high rate) is like a clean water, refreshing, clean and pure but lack of emotion. A couple of friends sipping tea and talking about the sky listened to the rustling of vinyl, as if they had taken people to the old years. After three cups and five cups, tea was not intoxicated and drunk. Move, but the heart is far. Having said so much is not better than which media, but whether cd or digital broadcast, this 0 and 1 recording method has let us miss a beautiful era.
If I let me choose between the first CD and the digital recording DSD, I may still choose a CD. It is always more practical and more collectible.
Regardless of sound quality, compared to using a hard disk to store, using the iPad to refer to the operation of the stamp, many people prefer to put the disc into the machine's sense of ritual, when you select a disc suitable for their own mood, sincerely open The box, carefully picked up next to the equipment rack, replaced the previous disc, accompanied by the sound of the incoming bins and the sound of the discs, as if Pandora's Box was about to open, and an elegant elf could be drawn at any time;
Individuals are more inclined to collect so-called first edition CDs while collecting digital format recordings as a supplement. The identification of the first edition of the CD is quite complicated. We need to open another post to say so. We are interested in Baidu. Wait for me to update. Don't know how to wait until the year of the monkey. Many people will not wait for this format to gradually fade out of sight. see. In terms of time, the approximate issuance sequence should be water blue disk - no word silver circle - full silver circle Made in XXX - full silver circle PDO - PMDC, etc., 95 years after the unified standard, IFPI organization was established, the disc The SID code was added on the back, so the pursuit of the first version of Lao Shao to get the dish will often look at the code without code (=-= good pollution), and the late full circle production line basically all stop production, therefore, most of the current stir-fried In the 90's and 80's, the silver ring was the main dish.
For example:
The high-priced Fim (really love) company mainly focuses on high-quality recordings of xrcd. At present, most of the company's cds have been priced at more than 1,000 yuan, and there is no shortage of the city's priceless discs. The asking price is not necessarily 10,000 yuan. Someone is willing to come out! There are other minority collections such as the Ershi, Weixin test discs, and Mercedes-Benz audio test discs, which are also difficult to find. Not only is the sound quality outstanding, but because of the scarcity of numbers, the craftsmanship is outstanding, and no added value additions (likely) are reprinted.
DG, Philips and Decca (London) belong to PolyGram, which is jointly owned by Philips and Siemens, and this company holds a large share of the record market. Others include Sony, EMI (acquired by Sony), Terrax, RR. Wait.
2.1.3 (2) About PC and Blu-ray players
Popcorn's VTEN is one of the very cost-effective SIGMA SMP8757 solutions. It's the finest and most intensely colored, which is the main reason I chose it. Facts have proved that the picture quality is relatively better than pc on n grades (cf. TMT6).
Personal to the popcorn with the original line of electricity, the difference is very obvious sound quality, with x7200wa and ELAC FS247 directly play APE files far better than the PC, only lost in the sound field and low frequency control. (247 only 4 ohms is really hard to control, and AB current amplifiers that need more current to push)
â–¼ ps: By the way, av merge, from the 830 on the bridge to the Dragon X7200wa, there is a bright feeling, both the thrust and resolution have a substantial increase, although Onkyo main cost, but I compare down, voice It was lumpy, and in some test clips, the subwoofer's low frequencies couldn't be received, there was no quality, and the sound field was completely defeated. It is not just that the 838 was beaten by the 7200, but also the 3030. This is also true.
Denon/Dragon AVR-X7200WA Home AV Tianlong Amplifier Dolby Panorama Sound 4K19800元天猫Featured Direct Link 
2.2 Subwoofer
Since I like to shake the sofa and sweep my trouser legs, I like to push the pb13u volume directly to 0, the av output to maintain the -1~-5 level, and then the entire room (note, not an item) begins to tremble, very enjoyable! This gun is very interesting, like the love of the author love death, annoying people to mention all kinds of disdain, or from its style. Silly, big, thick, lacking the low-frequency lines that are needed, in exchange for the thrill of landslides and the shock of overwhelming!
Svs itself should belong to the low-end manufacturers, pb13u already belongs to the brand's flagship, but in the JL, Po Sinan or other high-end brands such as Barrydon have only just started to see, but fortunately this gun is very cost-effective. Recently, a new pb16u has been made and it is itchy.
This artillery overemphasized the sound pressure output. It was full of massaging and massaging. It weighed 150 pounds.
Of course, if you like the fine texture of the gun or choose F113, DD15 +, sub2 and so on.
Third, some detours 3.1. Environment! Never use one or a few materials in a large area, otherwise you will get the following figure:
The above figure is the reverberation curve measured in the case of full-house sound-absorbing panels before I joined the diffuser in the later stage;
The frequency band around 450Hz is almost all sucked out. The female middle-treble sound corresponding to the vocal is also the sweetest part. While other bands are terribly terribly unreliable, no reverberation has the consequence that the sound is dry and completely devoid of moisture, while other frequencies with a reverberation greater than 0.5 s will result in turbidity. The ideal reverberation is 0.3-0.4 s for the full band. Be sure to pay attention!
Borrow a picture of @ Chengdu Koharu:
This is the ideal reverb environment for tuning.
To achieve more complex, there are conditions or find a professional company design
â–¼ At present, many people are arguing whether the wraparound is flush with the ear (120cm-150cm) or 30-80cm (180cm-240cm) higher than the human ear.
Personally think that it is also very good to distinguish:
Earlier than the human ear is the thx standard
Flush with the ear is Dolby standard
Specific installation or look at the environment, if the map is as convenient as the author uses a tripod
3.2. The screen must use the frameThe same is the lesson of blood (sweat money)! For the sake of so-called convenience, a certain brand of electric cording screens was used. Imagine this:
Or is it like this:
Then bought a sudden change of style in a few days. .
In fact, the appearance of ripples on the wire curtain is almost inevitable, basically there is no way to avoid and repair
Obsessive-compulsive disorder and perfectionist must not! want! Make! use!
The so-called pull-wire curtain can only stretch the longitudinal direction, and it is powerless for the ripple caused by this lateral force unevenness. .
In contrast, although the picture frame cannot be freely placed, it is more beautiful.
then. . Reluctantly removed the picture frame screen that replaced Taiwan’s Yili’s white 1.2 gain. .
â–¼ps: Several Principles on Curtain Gain Selection
High-gain screen is a projection screen that can increase the screen effect. The brightness of the reflected light is extremely high, which is conducive to a clear demonstration of data and graphs. It is suitable for situations with strong ambient light, but the high gain will also make the viewing angle smaller. Although the gain is high but the viewing angle is too small, it is not suitable. Different orientations of the projector are placed and the viewer views the picture in different positions.
The following environment is recommended to choose a higher gain screen (greater than 1.6, less than 2.0)
Long and narrow room with a viewing angle less than 120 degrees
Poorly shaded living room, etc.
Heavy 3D visual enthusiasts
Some 3LCD models, such as the Epson tw series
Projection can not meet the large size of the screen, such as more than 150 inches
If you can meet the better shading (such as the author of the audio and video room can reach the day and can not see five fingers) or suggest that the gain should not exceed 1.4 (1.0-1.4 is appropriate)
â–¼pps: About the screen size
There is no doubt that the bigger the better, the better the wall is.
3.3. Decoration styleThere is still a need to address system issues. The Hifi system emphasizes the proliferation of large areas, especially the back wall! !
(Oh, the three sentences are inseparable from the acoustics. Who would call it the air we shake in the final analysis? The author sometimes thinks, if someday the earth's gravity, or the atmospheric system changes, then all the sounds are not We must change! However, if this happens, people will not care about this little thing.)
True, the wall behind the main speakers is generally called the back wall, and the opposite wall is the front wall. .
For the AV system, this wall is basically a curtain.
Therefore, in a room, six faces are directly depleted and the acoustic treatment becomes more difficult.
(The author's front and back walls are waste =-=, plus four doors, and the triangular roof simply can't use formulas to calculate reverberation, and it's just a matter of practice.)
Therefore, the next major choice is tone and acoustic materials.
The core is the proliferation of various frequencies, including the diffusion of the first and second reflection points is very important. The classification and parameters of the specific diffusion plate can be found in the acoustics section.
Relatively speaking, sound absorption is easy to handle, but it is also limited to frequencies above 200hz. To deal with low-frequency reverberation, it is still necessary to use traps and positions to deal with it.
To find some pictures, the principle is that the acoustics are correct (at least four pillars must have it), and then the tone is harmonious, for your reference:
In addition, the bookshelf itself is a very good diffuser, and after absorbing cd and books, it can also balance sound absorption.
And it is very easy to adjust the acoustic effect by placing the capacity, it is highly recommended!
Regarding the actual effect and the sense of hearing, 10 points is based on Wanda imax or VIP hall.
In the case of current equipment that does not include the latter, individual scores should be 15 points.
Imagine that 25 flat spaces plug 12 boxes and sound at the same time
Therefore, the sense of small space is definitely better than the empty movie theater.
Second, I used the hifi box to build the av system.
Distortion and detail must be more perfect
Another big advantage of a personal theater is the freedom to set sound patterns and parameters according to each movie scene to achieve the best results
Because the location of personal audio and video room is not really pure HIFI, it is more entertainment room that is inclined to multifunctional multimedia.
So it's a bit of a freakish feeling for gamers
As for use, usually used time: music> games> movies
Last few pictures
The small goal for 2017 is to replace the 4k projection
Since the author dared to send the semi-finished products, he also prepared to spray
Grass is boundless, search from top to bottom
There are any questions welcome to follow the question, take a picture, I try to answer will be ~
I wish you all the best of luck in the new year.
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