First, the basic parameters are understood.
Vocal tracts, usually vocal tracts are divided into. 1
2.Channel 0 refers to the sound with only two channels, left and right, and the structure is divided into two ways: split and conjoined, and the split is two independent speakers, which are divided into right channel and left channel;Siamese is the left and right channels as a whole, in the same cabinet in different positions to stereo effect, usually a multi-functional stereo speaker, more suitable for listening.
2.1 channel as 20 speaker is a derivative product,It is composed of a subwoofer (subwoofer) and two speakers,The bass effect is turned off with its own size,The larger the size, the better the bass effect;Subwoofer purchase parameters: frequency response 200 Hz, rated impedance is also about 4, sensitivity is generally greater than 90 dB W m suitable for watching movies and playing games.
5.1 channel is two front surrounds, two rear surrounds, one center surround and a subwoofer. Entry-level stereoscopic surround for home theater.
7.The 1 channel has two front surrounds, two side surrounds, and two rear surrounds. A center surround and subwoofer. The high-end level of stereoscopic surround, which is used in home theaters.
Dynamic range refers to the logarithm of the ratio of the maximum undistorted output power of the sound system during playback to the noise output power of the system at static time, but it also refers to the relative ratio between the darkest and brightest parts of the image output by a multi-hard disk. The unit is decibels (dB). Generally, the dynamic range of a sound system with good performance is above 100 (dB).
The standard value of sensitivity is 89 90db, and the higher the sensitivity, the louder the sound will be.
Power refers to the output power of the audio, also known as the "nominal output power" of the home audio, the power amplifier is 30w-40w. The subwoofer is 80W, the speaker is 20-25W, and the output of the main channel of the better audio is generally 120W to 150W.
ps: When purchasing speakers, the impedance of the matching power amplifier should be consistent with the speaker, and the rated power of the power amplifier should be 1 of the speaker5-2 times more power.
Distortion is the most accurate coefficient of restoration, after the signal is amplified by audio, it will produce a certain degree of distortion, usually around 3%, the lower the distortion, the better.
Impedance refers to the ratio between the current and voltage of the speaker's input signal. The input impedance of the speaker is divided into two categories: low impedance and high impedance,Its higher than 16 is high impedance,Lower than 8 is low impedance,The standard impedance of the speaker is8,Usually the larger the impedance, the better。
The signal-to-noise ratio refers to the ratio of the normal sound signal played back by the speaker to the noise signal (power) when there is no signal. It is denoted by db. For example, the signal-to-noise ratio of a certain speaker is 80dB, that is, the output signal power is 80dB greater than the noise power. The higher the signal-to-noise ratio, the less noise there is.
Frequency response is referred to as frequency response, which is the difference in the ability of equipment circuits to process signals at different frequencies, also known as the sound curve, the ideal sound curve is straight, and the audio signal will not be distorted after passing. After such a sound enters the human ear, it feels delicate and soft, and the level is clear, as we usually say: the frequency response of this set of audio equipment is really good. The response of the frequency is inversely proportional to the degree of distortion, with a better (high) frequency response indicating lower distortion, and a worse (low) frequency response indicating higher distortion. The frequency response is a range. The lower the lower the limit, the better, preferably not less than 20Hz;The higher the upper limit, the better, preferably no less than 20kHz
The frequency response can be cumbersome and complex to interpret.
The simplest way to understand it is;
The human ear can hear the sound of 20Hz 20khz, so we can choose according to our own preferences when we buy speakers, such as 0 20khz, there will also be 20 20+ khz and so on;
Then there is also a possibility that the merchant will directly release the sound curve;
Generally, there are businesses that release the sound curve, we can observe whether the lines are flat, the flatter it is, the smaller the db, then the sound quality will be relatively higher, but some businesses will put the kind of Y-axis scale is relatively large**, here must be carefully observed, otherwise even if there is a high db, it is difficult to see.
Let me show you how the same parameter differs in different y-axes.
Of course, the frequency response does not all represent the sound quality, unless we are really picky about the sound quality, otherwise the frequency response is not much help for us when purchasing;
Second, the purchase of misunderstandings.
1.The more power, the better;
The power labels of the speakers are different, and they are determined by the PMPO power and the RMS power.
PMPO stands for Peak Output Power: The output power calculated by the instantaneous peak voltage of the signal.
RMS is the rated power, which refers to the maximum power that can be output within the rated distortion range of the loudspeaker power amplifier circuit.
The power concepts of the RMS and PMPO logos are also completely different. The higher the power, the better, indeed, just like the power of the power supply, a reasonable power reserve can support the work of the machine, however, too much power will undoubtedly become a waste.
Then the wattage identified by the audio, we can also understand that the nominal power, that is, the highest wattage of the power of the audio when it works for a long time. If the working environment of the speaker is out of range for a long time, then the speaker is also easily damaged. Of course, we don't have to worry about that, and although the dynamic range of the sound is huge, as long as you don't leave the speaker at maximum volume for a long time, it's perfectly fine.
2.Electronic frequency division.
The greatest use of electronic frequency division is to avoid the loss caused by power division to improve the efficiency of power amplifier drive and avoid phase distortion at the frequency division point. And when this technology was introduced to 20, in an instant, many old burners couldn't sit still. The advantages of electronic frequency division (edged, active frequency division——— can be divided into;
Transients are improved accordingly.
Narrows the operating frequency of the amplifier.
Reduces the possibility of low-frequency overload.
Improved dynamic range.
Low intermodulation distortion.
Increase the sensitivity of individual units.
It seems that this way it is full of advantages. But don't forget that nothing is a combination of single elements, and neither is a speaker. If a speaker uses electronic crossover, the unit, cabinet structure, power distribution, etc. are unreasonable, then it is called the Double Eleven Leek Festival, you know what I mean.
Ti**g, should I call it capital or pxxxc?
3.About the box.
If you have a wooden box and a plastic box in front of you, then most people will actually choose a wooden box. Wood is a classic material for speakers, which is not easy to deform, and has a series of excellent characteristics such as flat surface. Of course, the wood referred to here, of course, is not logs, there are very few speakers made of logs in the world, and the quality of natural logs is relatively unstable, which refers to wood and other materials.
As for plastic,In fact, with the current technical means,Speakers made of plastic are not inferior to wooden materials,And in terms of modeling,Plastic has greater advantages。 Of course, you will definitely be worried about the problem, what is the hardness. To be honest, the current plastic can be made harder than my head, so you don't need to worry about strength.
So how to choose,Of course, appearance is justice,So as long as you look at the speaker,Don't think about what material it is,Consider it's not ugly。 Although I prefer the wooden one, not because of the sound quality, but because it can be loaded.
4.Speakers from afar have endless sound quality enjoyment.
I am very emotional, now most young people will finally not be engraved with a better stereotype of foreign things, in fact, just a few days ago I can see a large number of foreign speakers more niub words, but to be honest, you buy the so-called "foreign speakers" carefully flipped 90% are made in China, so you even buy foreign goods are fake, how to say better.
And the actual thing is,In the multi**speaker industry,In terms of quality、Or design,Domestic brands are more nib,So you don't need to care too much about foreign brands or domestic brands,Choose according to your budget。
5.About monitors.
If you're really okay with that, that's no problem at all;
Monitors are used to reproduce sound with no attenuation or gain, and distortion is minimized. But in the near sound field, I personally think that monitoring is more pleasant.
Generally, the speakers we use can have more rendering, and the sound will be more saturated, if you need a more transparent sound, then the monitors may not be able to do it.
It is very responsible to say that more people will prefer home speakers, because the sound of monitors is dry, so it is best not to blindly pursue monitors. There are a lot of monitors on the market, and a large part of them are not monitors.
We all know that the high threshold of HIFI speakers lies in tuning,In order to bring a better listening experience to the audience,There will be a very good sound coloration itself,In contrast,Relatively professional monitors do not have a good "sound coloration effect",The sound it emits will be more accurate and detailed,So not everyone can accept monitors。
For example, recording, and other work need to use monitors, and the most essential sound can be further modified, if the sound has been modified, then the consequences can be imagined. Remixing.
What's ridiculous is,Monitor is the same as HIFI,Most of the propaganda and reality do not match,Most speakers,Monitor is marked first,And then raise the ** grid and it's over。 So for the "basic operation" of these businesses, Sister Jenny Ma Ufani.
3. Precautions.
1. In fact, many people like to search for speakers on the Internet, and they are often confused. In fact, audio refers to a set of audio systems that combine electrical equipment to produce sound, and speakers are only a component of this audio system.
2. Speakers, that is, speakers. Points: subwoofer, mid-frequency speaker, tweeter. There are so many types that I won't introduce much. The basic principle of operation is similar, both are components that convert electrical signals into sound signals for reproduction. At present, the most widely used is the electric speaker, which is composed of a diaphragm, a voice coil, a permanent magnet, a bracket, etc.
3、The greater the power,The higher the probability of better sound,But here refers to the rated power,Not the peak power,If the merchant says that this speaker can reach300W,Then it is absolutely unbelievable,15W or so is enough for 20 square meters to use。
4. Some people want their speakers to be more magnificent, so they will choose solid wood cabinets and piano paint. But if the speaker's ** is less than 1,000 yuan,Then it can be said for sure that it is fake。
5. Try to choose brand products and good channels, if there is a failure, at this time there is a good after-sales service, which is your best guarantee.
Fourth, speaker recommendation.
This update,In addition to some of the speakers that were originally there,I listed two points for the re-update;Bluetooth speakers (of course, you can also plug in cables) and desktop speakers, two categories, you can see it by clicking on the catalog.
Secondly, it is the ** that most people complain about!About this,How to say,There are less than 10,000 garbage that dare to recommend,There are also speakers that are not even less than 100 yuan。
Let's talk about it here,The following speakers will be more or less in contact.,And then I'm lazy.,Usually as long as I'm more idle, I will write (of course, I will look at it every day),So there will be a reason for less goods.。
The second is that my writing speed is slow, this is a problem with writing, I can't even write a diary. However, each product will be carefully written, including its flaws. But if it's a little more detailed (such as audiosciencereview, psychoacoustic experiments, etc.),I'm sorry,I can't do it at my current level.,After all, I'm not a major.,It's just that I'm exposed to a lot.,And then the work is related to speakers.,I can only say that I know more about it.。
The third is the product introduction of the article, why is it different from others, about the product introduction, I have my own principle, seeking truth from facts, unless someone takes money to hit my head, but not at the moment.
Price point: Recommended for less than 1k.
Edifier R201T
R201T is a very cost-effective choice for the game party, but in terms of **, R201T is actually not very good, and even a little reluctant in general. Of course, when playing games, the immersion it brings us is also 20Speakers can't do it,This price is still a little more stable for the Rambler。
Output power: R L: 8W+8W & SW: 18W
Signal-to-noise ratio: r l 85dB & sw 80dB
AUX input: R L: 500 50mV & SW: 110 20mV
Bluetooth input: R l: 500 50ffs & sw: 110 20ffs
Frequency response: R l: 210Hz 20kHz & SW: 63 206Hz
Total harmonic distortion of sound pressure: 7%.
In addition, there is a wire control, which can control the volume from a distance, and you can also plug in headphones, and the dormitory party can also consider it.
Edifier B7
The highlight of the Edifier B7 is the Sounbar TV sound system with a subwoofer and a maximum undistorted power of 75W. It's also a small-level family audio-visual bar, and it's also very good in appearance.
At the same time, it supports optical fiber and coaxial input;Main unit 400 50MFFS & subwoofer 60W 100V-240V
The achievable power in terms of RMS power is considerable, so if you want to have a better ** improvement friend, it is recommended to refer to this article;As the saying goes, three-point speaker7-point environment, you can do it slightly, or there will be a certain improvement;
But what about B7, if you want to start, it is recommended to look at**start, because**fluctuations are really a bit scary, and the current** is above 1K!And usually the minimum is 700 800, so see for yourself.
Edifier R501BT
5. within 1,000 dollars1-channel home audio, still a Wanderer, and 51 There is actually no big improvement over the sound bar of the previous model, but they are two completely different listening concepts.
In contrast, it has a more three-dimensional, surround listening environment. It's a pity,R501BTTs will have certain defects in the treble performed,But**The threshold is indeed very low,At present**It is about 700 yuan (well,Now**It's 999,Two days ago, it was still in the early 700s),Then this set I recommend more is to use it in the living room with TV,There are still a lot of improvements。
Multi-source output support: Blu-ray machine, power amplifier, set-top box, computer, etc.
Edifier S1000MKII
S100MKLL is very outstanding in terms of workmanship,And the cost performance is also very high,It can be regarded as a turning point of the speaker,Compared with speakers below 500 yuan,It has a very obvious improvement。
It is equipped with an ADC DAC digital-to-analog conversion chip: PCM9211, which can provide the speaker with a higher dynamic range. In the built-in DSP,This audio processing chip is mainly for the unit,At the same time, the resolution of the speaker has also been improved to a certain extent,Although the improvement is not high。
Compared with the S1000 chart, the improvements seen from the figure are mainly Bluetooth connection, dynamic range, and frequency response, and other values are not high, but in fact, the technical improvement will be relatively large. The S1000MK has a clear difference in both the improvement of speaker technology and the tuning, especially in the high and mid frequencies.
Therefore, the budget is about 1K, and the S1000MK still has a relatively high cost performance, of course, it is also a good choice to use with the front-end.
Desktop speaker purchase area:
Actually, it's 20 Shopping Area;
Edifier R1700BT
This price, to be honest, I personally think it's acceptable, after all, the price of a little cabbage, the performance in the low price is quite passable, if you don't have high requirements for sound quality, you can choose it.
Input Sensitivity TRS Balanced Input: +4dbu AUX RCA Unbalanced Input: -10dV
The output power of the distortion limit is 21W+21W
The rated sound frequency response ranges from 60Hz-20KHz
Audio inputs: TRS balanced input, RCA unbalanced input, AUX unbalanced input.
Signal-to-noise ratio 85dba
Total Harmonic Distortion + Noise (%)02%
Tweeter size 1 inch.
The woofer size is 4 inches.
Not to mention the dive, the resolution is not high, but fortunately, the appearance is really good.
If you are in the low price, want to find a relatively good, cost-effective, then JBL's K3&K4, these two styles, I highly recommend it to be used as a desktop box.
Their essence is monitors, and if you're okay with that, that's perfectly fine (repeat here);
The K4 will have a better dive, the sound will be more complete, and the K3 will be drier.
If you pursue pure monitoring, such as recording songs at home, it is recommended to choose from the connection, K5, K6 are good choices. It's really friendly to the poor **.
If you say about the same price,You want a non-monitor speaker,JBL CM220 is my recommendation,Although it says that it is a monitor in the introduction,But I can make it slightly clear,It's not a monitor,It's just a speaker we use to listen to songs at home。
In terms of sound quality, it may be in the passing line for audiophiles, but it is clear that it is very cost-effective.
First of all, the speakers at this price are not very OK,The speaker gives me the feeling that the mid-frequency and mid-high frequencies perform relatively well,But the low frequencies have a more annoying low boom。 It is best to modulate the low frequency to the lowest, which will be more comfortable.
And the speaker structure and speaker as a whole give me a feeling of being more general,The hardware is very good,But a big reason is the failure of the cabinet,Overall,The sound quality is medium,But it's still desirable at this price。
Other parameters are as follows.
Unit: Silk membrane dome unit + metal membrane drop basin.
Unit Specifications: Treble 254mm, mid-bass 102mm
Signal-to-noise ratio: 80db
Output power: 2*30W
Unit impedance: 8 ohms.
Frequency response: 50Hz 20kHz
Summary: JBL CM220 is good for value for money, and the sound quality can score 65 points.
Sonic A2+ Wireless
I really like the look of it, and one of the things I like about the Sonic A2+ Wireless is that it uses a Class AB amplifier that is relatively rare at this price point.
Explain what a Class AB amplifier is.
Class AB: also known as Class A and B, the principle is to provide a static working voltage to the power tube when there is no signal input, to ensure that the high-power tube has been in the state, and when there is a signal input, the two ** tubes are turned on and off to work in turn to complete a full-wave amplification.
Advantages: good sound quality, small distortion.
Disadvantages: The efficiency is generally 65% higher than Class A and lower than Class B.
For me, it can be considered an audiophile entry, which is basically enough for home use, and the sound quality is mediocre and the low frequency may be on the weak side. On the contrary, the midrange and midrange high frequencies are very good.
What is lacking is,This speaker has a slightly stronger directivity,It is more important for the placement,Leaving the near position contrast, you can feel the weakening of the sound more obviously。
I just watched it**, currently 2099, how to say it, if you want to buy, you can wait for the price reduction, the price reduction is quite a lot.
If you're looking for further sound quality while comparing the more uniform keflsx here's a hand.
At present** is not high,Compared with the previous one,It has more improvements,Not only in terms of sound quality,It can be better resolved,And even if it's classical,It can also be solved very well,The front and rear position discrimination can still be clearly felt。
In addition, it is KEF UNI-Q technology, which I feel that this has not improved much, but it is substantial. It shouldn't be a false propaganda, and the sound quality has not been reduced, which is very important, after all, the difference between scattered and centralized is still quite big.
As for the disadvantages, the connection is very lj, and to be honest, it is not recommended to connect Bluetooth to use.
Bluetooth speaker purchase area:
To put it simply, the key points for the purchase of Bluetooth speakers:
They are the transmission format and the Bluetooth version, and the purchase result is directly given here;
Bluetooth version: Select 42 or more is sufficient.
Transmission format: LADC APTX ACC SBC
Brief description of the principle:1Bluetooth.
The Bluetooth module is mainly composed of PCB boards, chips and peripherals, and is also the main core used to receive frequencies, read audio data and convert audio, which determines compatibility and stability.
In fact, the Bluetooth version does not affect the sound quality, mainly determined by the transmission speed, transmission distance and transmission loss. There are Bluetooth speakers on the market. 2.
We choose as long as in 4More than 2 Bluetooth speakers can be started.
2.Transfer Format:
SBC's earliest decoding method is a protocol that can be adapted to all Bluetooth, but because it has not been updated, it is relatively poor.
ACC uses a high compression ratio encoding algorithm, which is better than SBC at the same bit rate, which is a medium coding.
aptxaptx: The transmission rate is not high, and the detail and sound quality are better preserved, which is better than the first two in all aspects.
APTX Low Latency: Based on APTX's lower latency rate, this encoding rate may not be present on the speaker.
APTX HD: APTX based retains higher sound quality.
APTX Adaptive: Based on all three.
LADC is a transmission format of a private protocol, which is compatible with a relatively small number of devices at present, and is also the strongest encoding among the four encodings.
Less than 500 yuan.
Edifier D12
If you want to place it at home, you can choose this one.
It's a 50Bluetooth desktop speaker,In terms of sound quality, the performance in the middle and low and medium and high frequency is very good,At least it's hard to disappoint。 Other low-frequency and high-frequency processing, low-frequency and high-frequency are slightly worse, low-frequency is more mixed, and high-frequency performance is also poor.
This speaker may have poor sound quality when you just buy it,This is normal,Go burning,Cost performance is decent,But the overall workmanship really doesn't have to say,After all, what kind of bicycle do you want at this price?
Summary: Average passing, penny-for-money, medium sound quality.
jbl clip4
Like the first one, JBL CLIP4 is a portable Bluetooth speaker, in addition to the appearance, the performance will be much stronger. In terms of sound quality, it can be said that there are many speakers in this size.
The midrange and high frequencies are excellent, and the low frequencies have been improved compared to the 3rd generation, but the 3rd generation may sound more comfortable, and the 4th generation will be a bit mixed.
The more surprising thing in terms of sound quality is the resolution,Although it is not enough to analyze the instrument,But the interpretation of the vocals will definitely be better than the previous two,Of course**It is also more expensive,But in terms of sound quality, it has been improved,If you have friends who go to travel, you should also like its bayonet design。
Summary: The cost performance is medium to high, and it is worth starting.
500 1000 yuan price recommendation;
Sony SRS-XB23
In terms of cost performance, this one is the most recommended. It is equipped with Sony's X-Balanced speaker unit, and adds a non-circular diaphragm, which has more sound pressure and scatters sound waves, which is simply more immersive.
This speaker has excellent mid-bass performance, and has a good sense of shock, and the high frequency is also a passing expressiveness.
However, because this one's Bluetooth transmission is too sloppy,Otherwise, it must be a more perfect speaker,If the budget is enough,It is recommended to buy two channeling,The effect is also flying。
Summary: The cost performance is very good, but the transmission may be a little poor, and it is worth starting