Before opening the box, it should be reasonable to introduce a brand. First of all, I wish the old-fashioned audio company Anqiao a happy 70th birthday. After all, there aren't many sound manufacturers in the old age. This time Onkyo's new product, the LS-B211 Soundbar, is often referred to as the "echo wall," or "sound tyrant." For this product, some friends who care about audio products may have seen several so-called evaluations, saying that it is an evaluation, it is better to say that the official gun is more appropriate, stereotyped typesetting, rhetoric, selling points piled. Has it hit the real selling point of the product, or has it touched the pain point of the consumer? I am afraid I am not far away. Some time ago I saw Aunt Zhang’s material: Just before Dad complained about the poor sound of flat-screen TVs at home, I couldn't hear the vocal dialogue and affected news and TV dramas. This product is a good price, easy to use, used to honour parents good Ever since then, this has opened the box, let Xiao Shao come to experience it, and brings you first-hand experience data. It can be seen that the internal packaging is still relatively simple and environmentally friendly. On both sides are the speakers of the left and right channels, the middle part is the subwoofer with the amplifier decoding function, the middle is the accessories box, and all the power supplies, wires, and remote controls are inside. Take a family portrait: The left and right channels can be placed horizontally and can be placed horizontally. They can be placed freely according to the width of the TV and can even be placed in your favorite position. This is one of the selling points of this Soundbar. In addition to aesthetics and ease of integration with the home environment, different placement methods will also affect the sound, which will be mentioned later. Although it is a split-type design, note that it is still a passive speaker and requires a speaker cable connection, which is the back of the black cable. The inverting hole behind the main speaker and the speaker cable need to be connected to the rear of the subwoofer. Inverted hole can increase bass sense appropriately. This image is part of the base, in fact it is the sound of the main speaker. Yes, don't doubt, the speaker unit is hidden behind the grid and the grille. Why is this design? Please see the official picture: The purpose of the design is to allow the speaker to be placed behind the TV. The sound is transmitted from the gap below and is not blocked. Power and light section. Here you need to briefly explain the role of each indicator (very important, because this machine does not have an OSD, you can not know its status from the TV screen, you may need to observe the indicator). DTS Studio Sound When I saw this DTS logo, I believe many of my friends are like Xiaoge. I feel like I've got a Soundbar that can decode DTS! However, when it was actually tested, it was disappointed. This product, like Sonos Bar, only supports Dolby decoding and cannot support DTS decoding. The next actual broadcast effect gave Xiaokao a big surprise. But what about the DTS logo on the airframe? Let's go to the DTS official website to find out. Reference website The first thing to understand is the concept of DTS ANYWHERE. After DTS had a firm foothold in homes and cinemas, it decided to go further to address the acoustic challenges in the mobile space, and to provide the best sound experience anywhere. What is the DTS Studio Sound on the LS-B211? In simple terms, its function is not to perform DTS decoding, but to use the post-processing of the decoded sound to create a virtual surround sound experience. Where is the general application scenario of this technology? Cell phone There is a laptop For this technology, many friends have already been in touch with or even experience it. Well, this 70-year-old audio company, Onkyo, applied this technology to its Soundbar products. Real shot, what, can not see, it does not matter, the official recommendation is to put it behind the TV, so completely hidden Everyone can compare the size of the object. The background is a small 55-inch whale, you can see the size is basically right, if a smaller TV, I am afraid it can not completely cover the Soundbar. Basically placed close to the TV. Well, then enter the highlight. Since we have already said that DTS can't decode it, we still ask for this Dolby Panorama demo disc. Latest version download address Amaze is selected, and this piece of popular ting (during dao) music reads (tu). This environmental sound in the jungle is a good test of the width and depth of the sound field produced by the device, as well as the surrounding and sound details. When he first entered the jungle, the insects flew, and when the bell rang, WOW couldn't believe it was the sound of an unassuming Soundbar before the TV. It is not because there are many HiFis in the sound, nor is it because of how shocking the bass is, but the sound of the real surround sound systems 5.1, 7.1 and DTS:X. Never thought that such a small 2.1 system can create such a realistic, physically large, deep virtual surround sound field. And thanks to the good horn quality, the sound details of the demo clips are also well-performed, and still not harsh under relatively loud volume, with many details and clear sound effects. Let's describe it. Normally everyone uses the ordinary Soundbar without surround sound processing, or if the TV has its own audio to watch movies, it will feel that the sound is only coming from the TV screen. Even if your voice is louder, it just increases the volume. However, this Onkyo LS-B211 allows the sound field to fill the front of the room. Although the picture is still on the TV, the sound has already ran out of the screen of the TV. In front of you, it is a semi-circular sphere formed by sounds that will surround you tightly as if you are in this jungle. The insect is in front of your left, and the leaves are in front of you. In front of your right, a certain ringtone suddenly ran to your left rear. This is perhaps the introductory version of the immersive sound that Dolby and DTS have been trying to get viewers to experience. In any case, the surround sound performance of such an entry-level product is already close to the entry-level 5.0 system. The only thing missing was the sound field at the back. When listening to the bird's 360-degree scene around the top, the rear sound field was obviously compressed to the top of the head. I believe this is also a problem when using a 2-channel virtual 5 channel. But still, you can really feel the bird's feeling of going round the top, really over your head, not in your TV. Then there is an enhanced version of the head-surrounding sound, and the footage of the helicopter's hovering sound clips on the top of the head is not so detailed and there are no pictures. This way you can concentrate on hearing the trajectory of the helicopter constantly hovering overhead. In fact, you can completely ignore the screen, because the sound of this time has completely exceeded the scope of the picture, only to feel that there is really a helicopter is constantly hovering around the front and back around the head really spared a lot of laps. It's like putting a few horns on the wall and overhead to sound in sequence. If you close your eyes, you will never think that this is a sound from a Soundbar placed in front of you on the table. Another piece of music, this picture of the eye-catching, fast-paced Bailando, from Anriku Iglesias, has been one of the favorites of the Burning Test System. The powerful drums at the beginning can test whether your system's low frequency has enough flexibility, and then many singers' vocal tests put the system in the middle of the performance. In this session, I gave 60 points to the LS-B211. The vocal performance was basically satisfactory, with clear pronunciation and bright sound. But bass. . . Feeling lacking, we can finally look at the frequency response curve of the system to find out. At the end of a crazy Mad Max, when the little gecko crawled, the details of the sound were well restored, and the vocal vocals with echoes were also excellent, but the foot that Max stepped on was still poor. That feeling. Forget it, or do not use low-frequency scenes for this LS-B211. Afterwards, Xiaochao still did not let it go. We used the remaining two (ti) formulas to test how the position of this machine affected the sound. I. The first thing is to hide it behind the TV, as recommended by the official. Then play the same clip. Conclusion: There is a certain influence on the clarity of dialogue and the width of the sound field, but within the acceptable range, it does not affect the normal use of ordinary users. Therefore, for the LD that enjoys minimalism at home, this system can greatly improve the sound performance of the TV without sacrificing the overall decoration style. So is this the key to allowing budget approval? Second, the next small fever suddenly whim, since it is officially declared that this is a 2.1 system, the left and right channels can be placed freely, then is it possible to achieve a better surround sound field performance through a larger distance around the place? So the little guy was placed about 60-80 cm from the middle subwoofer, both in the left and right channels. There is no doubt that such a position will undermine the overall sense of the front, but also because the cable is exposed, it is not so neat. But what is surprising is that such a distance of more than half a meter has immediately increased the scale of the entire sound field by one notch. If the width of the original sound field is about 3 meters, the size of the sound field is now about 6 meters. Feeling the surround sound field that was compressed in front of you, it ran to your side or even your back. Then I took out the scene where the 360-degree bird hovered. Well, the 360-degree hovering trajectory that appeared to be confusing because of the compression of the sound field is now quite similar. Thinking: Recall that before Xiaopeng used these Dolbys on laptops, DTS virtual surround technology did not catch a cold. The reason was nothing more than to feel that the actual effects sounded like shit, and there was no difference between ordinary notebooks. It is only now discovered that the original root cause is. . . The notebook is not big enough. If you can achieve such a wide range of Soundbar notebooks, the effect must be good. To a small detail, the blue and green lights will all be on at the same time when the machine decodes Dolby format. Remember, enter the Dolby surround sound source to get the best surround sound performance. Well, the last part of the instrument testing process is still this equipment: USB external sound card with 48V phantom power. Dedicated test microphone, 20-20 kHz flat frequency response. The goal of the test is to figure out the three listening modes built into the product, what are the differences, and the true frequency response curve of the system, so that it can clarify the mystery of its bass performance, and the performance of the superior performance of the tenor. the reason. Simple and crude, look directly at the test chart. First of all, its three listening modes basically start from about 150Hz and increase/decrease by about 2dB each. The volume of the Music mode is the lowest. Clear Voice has the highest vocal volume (well, the voice can be heard naturally), and the volume in the Cinema mode is in the middle. To be honest, Xiaozhu has never seen such a lazy three-mode setting. Anyway, it works just fine. Next, take a look at its low-frequency cut-off point, basically around 80Hz, and start to roll down straight down, which means that the low frequencies below 80 are basically not expected. In retrospect, 80Hz is not the standard crossover point of THX. More than 80 is for the speaker, the following is for the subwoofer. Are manufacturers such as Onkyo, who are closely related to THX, playing a big game? Can this Soundbar be used with a THX-certified subwoofer? Please ignore the YY above the yaki. However, this also explains the actual reason for the lack of low frequency in previous tests. If you think about it, if you want to have such a small tube, if you can send a low-frequency, really is black technology, it is estimated that the price can be turned several times. The last is the tenor. This product also has a more easy place to introduce to you. Do you see the bulge around 1.3 kHz, which is the most sensitive part of the human ear? Appropriately increasing the volume of this part can help people's ears with less power consumption. This is also one of the ways that Soundbars and other products can improve sound performance with limited volume and power. As for the treble part, you can see that there is no attenuation up to 20 kHz, which is why this Soundbar sounds clear and bright. 1. The most important point is the first to say: This may be the product with the best performance in the same price range and sound performance in the market. More expensive than it is, say Yamaha's digital audio recorder. With more speakers and more advanced algorithms, there is indeed better surround sound and sound field performance in a better home environment. But if I'm in an independent video room like the one above, why not get a real 7.1 system, or even a panoramic sound system. So, for the Soundbar products used in the complex living room environment, the DTS Studio Audio used on the Onkyo LS-B211 is undoubtedly a very easy and clever way to do it, and the actual results are also very good. 2. Place it. This is a product that is easy to install and very flexible. You can completely hide it behind the TV and make the living room environment more concise. It can also be placed in front of the motor to improve sound quality. You can place the left and right channels separately to get the ultimate sound field performance for 2.1 channel products. The interests of this one are entirely up to you. 3. Bluetooth. There is no doubt that Bluetooth will be available for every phone and Pad. In the "Big Bang", Xie Er said one sentence: With Bluetooth, everything becomes simple. Indeed, if you can't stand the sound quality of your mobile phone when playing a song, turning on Bluetooth to connect to the LS-B211 will have a better experience. It will also greatly increase the frequency and time of use of the product and return the price. Even if you can connect your TV to the Soundbar, eliminating the need for cables to transmit sound can be a brand new attempt. 4. Disadvantages: It doesn't matter if you don't care about it, although Xiaokang is quite satisfied with the sound field performance of this product. But still mainly want to spit two places. First, the bass can only reach 80Hz, which can only be regarded as the level of ordinary bookshelf speakers. Maybe Onkyo is taking into account the neighborhood and the hustle and bustle. The low frequencies will not disturb the people and they will not be knocked at the movies (well, maybe I think too much). Second, although this machine has an HDMI interface, there is no OSD menu, which means you cannot see any Soundbar status information such as volume, mode, etc. Only after the remote control signal is received, the subsequent drop feedback will have an impact on the user experience. Recommended target group: Users who have improved TV sound quality requirements, There is a desire for a surround sound experience while refusing the expensive/needed 5.1 system, living/bedroom TV users. The last simmer also needs to add a bit of the selling point that has just been discovered to the American drama enthusiasts (except those who do not need English subtitles): The general Soundbar is required to be placed in front, but now the TV's border is very thin, watching the US drama will block the subtitles ... and then this machine you know This experience is here, this Soundbar will go to serve at the parents' house and wish him good luck. Glass Fiber Covered Flat Copper Wire
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Out of the box 
Family portrait 
Left and right boxes, can be placed vertically 
Main speaker rear 
Speaker grille 
Official placement map 
Power button and indicator 
Rear interface, left to right 
DTS logo 
With 55-inch TV 
Top view 
Dolby Panorama presentation menu 
360 degree surround sound 
Helicopter circling sound scene 
Bailando beauty 
Crazy Max 
Separate left and right positions 
The indicator lights up when decoding 
Yamaha projector 
Yamaha projector recommended environment 
TV Bluetooth and Soundbar connection
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Foreword:
October 24, 2021