preface

The development of television can be traced back to 1925, when it was invented by British engineer John Lodge Baird. Today, it has a history of nearly a century. The development of science and technology is always non-stop, turning imagination into reality, which is the power of science and technology. In recent years, the development of television has been at its peak, breaking through one limit after another. However, many years ago, who would have thought that a television would have so many functions, entangled with the high-end word "intelligence"? Today, a small editor will introduce such a representative and distinctive smart TV. It is the latest A2 series smart TV released by Kukai in Beijing not long ago, and it is known as the world's first HiFi level big content smart TV. On the day of its first launch, it received a lot of applause. Let's find out what its performance is.

Unpacking

First, let's talk about the product packaging of Kukai A2. In terms of material, the carton made of thick corrugated paper is used. The overall appearance is very simple. A circle of orange border is used as decoration around the packaging box, which also expresses the meaning of "youth and vitality". The portrait in the middle is the head portrait of Nicolas Tesla, the famous American mad scientist, which means that it is rich in content and continuous innovation. On the other hand, it also shows respect for Nicolas Tesla's great scientist. The words "back, front" are marked on the front and the bottom right corner of the back of the packaging box, so that users can accurately identify the current front and rear positions of the product when handling or unpacking. When the TV left the factory, a 3cm reinforcing layer was added in front of the carton, effectively protecting the screen during transportation.

On the upper side of the packing box, the red sticker briefly introduces the product volume parameters, color, and manufacturer and site information of Kukai A2.

Open the box and you will see the thick foam protective layer covered. In the grooves at both ends of the foam, there are respectively alloy TV tripods, which are wrapped with plastic bags of different colors to distinguish left from right.

Taking away the foam, we can see the protagonist to be introduced today. There is still a thick plastic bag wrapped on the surface of the fuselage, which on the one hand plays a moisture-proof role, and on the other hand allows users to easily lift the TV.

The packaging of the accessories assembled with the machine is also very special. Black foam document bags are used to wrap all the accessories, which can effectively protect the accessories from damage during transportation. Accompanying accessories include: instruction manual, three pack card, base installation tool and screws, remote control, power cord, audio/video conversion cable and two No. 7 batteries.

Remote control:

The remote control equipped with Kukai TVA2 still continues the simple design style, consisting of only 12 buttons. The power button is marked in orange at the top, the home button and mute button are respectively on the left and right sides at the bottom, and the round key in the middle tests the direction key, which is convenient for selecting TV programs.

The key test confirmation key marked with "OK" in the middle of the circular direction key is convenient for confirmation and execution when selecting programs or setting options. Below the circular direction key is the return key on the left and the menu key on the right. The menu key is generally used to call out some settings under the current viewing state when watching a video, such as: definition adjustment, subtitles, selection, etc. Test volume control key marked with+- in the long oval. At the bottom of the remote control is the logo of coocaa brand, which still uses vibrant orange.

The volume of the remote control is very small. The body adopts a black sanding process, which effectively organizes the phenomenon of fingerprint residue. The appearance of the remote control adopts a concave front and convex back design. At first glance, it doesn't matter, but in use, the hand feel is really improved, and the grip is comfortable, which is very ergonomic. The remote control is powered by two No. 7 batteries. The battery compartment is behind the remote control, which is no different from the remote control we usually use. The trapezoidal design of the infrared emission port uses a relatively bright and permeable PVC material, which is convenient for infrared emission. For such a high-end TV, the remote control does not have Bluetooth function, and it is still a bit backward, which inevitably makes people feel sorry.

instructions:

The manual is indispensable for every digital product. It can be used as a guide beside users, so that users can understand the product more and get started more easily. The instructions of Kukai A2 describe in detail how to install and precautions. It also introduces the detailed information of the interface behind the TV body in detail. In order to let the user have a more straightforward understanding, it has also made graphical indications.

Orange has become the symbolic product color of Kukai series. The instruction manual, the three pack card and the card with the head of Nicolas Tesla, the great scientist, are decorated with orange borders. The card also details the pioneering work of Nikolai Tesla scientist in his life. At the top is the sentence "Let the world shine, I'm C PEOPLE". The letter "C" here is taken from the first letter of coocaa, and an orange marking line is added for special hints. C PEOPLE means Cookai people. From this short sentence, we can also see Cookai's future ambitions in the TV industry.

Stand installation:

Today, more and more LCD TVs have abandoned the traditional base design and adopted today's mainstream tripod, the most supporting base for TV. The Kukai A2 TV is no exception. It is equipped with a pair of tripods with a herringbone appearance design. The material is made of solid and lightweight alloy.

The leg design of the tripod is very like the leg of a ballet girl. It is thin and slender. The surface of the material is also sanded, which feels good. The bottom of the tripod is equipped with a rubber anti slip pad, which increases the friction force. Even if it is placed on a slippery glass surface, it can also play a good anti slip role, making it more stable.

The installation process of the tripod is also very simple, and the manual has detailed instructions. In order to install, the official has also equipped a set of installation tools in the accessories for users to use. The installation project is also very simple, half of which can be completed in about 2 minutes.

The installation position of the tripod is at the left and right ends below the back of the TV. There is an independent white plastic block as the carrier for installing the tripod and screws.

The foot stands are divided into left and right ones, and the official has packed them separately when they leave the factory, so that users can easily identify them. Align the tripod with the screw hole and fix it with the inner six screws. It is worth noting that the screws must be tightened to prevent the tripod from shaking and causing unnecessary losses.

Details:

Today, smart TV has a complete range of functions, including memory expansion. Cookai A2 also has this function. On the right side of the lower end of the back of the body, there is an expansion slot for memory. In addition, it has a dust-proof design. In order to be unobtrusive, the rubber dust-proof cover is made of white rubber.

In terms of memory expansion, it supports a 128GB NTFS TF card at most, which can meet the needs of most users. It can also be used as an expansion of the system, install software, and store film and television photos without pressure.

The most noteworthy thing is the sound bar sound system of Cookai A2, which is absolutely shocking. The whole system consists of eight speakers, two tweeters, two mid bass speakers and four bass speakers. The eight speakers are all original JBL speakers, which support unique 2.2 channels and require high sound quality. If this speaker system is sold separately, the price is said to be 3000 yuan. It is not easy to place so many speakers in the limited and narrow space at the bottom of the fuselage, completely breaking the technological problem that "ultra-thin and sound quality" cannot coexist. The eight speakers are placed in front of and behind each other, and the bottom structure is placed. This design makes good use of the volume occupation, and increases the vibration of the external playback chamber unit to the air, making the sound quality more powerful.

Audio quality test video

Two sets of tweeters are designed at the lower frame of the front panel, the bottom of the fuselage is the position of the mid bass speakers, and the rear of the fuselage is the exposed two subwoofer speakers. In terms of sound quality transmission, it is not hindered by the limited space, but makes the sound more loud and clear. It can also be used as an independent Bluetooth speaker. On the left side of the phone, there is a button marked with a Bluetooth logo. When the phone turns on Bluetooth, press this button to match. After the matching is successful, the screen will pop up a corresponding prompt, and then the screen will automatically close to enter a separate speaker mode. Users can also listen to different sound effects by setting their favorite DTS sound effects.

In addition to the excellent JBL original speakers used in the audio system, Cookai A2 has not reduced its pursuit of sound quality due to cost factors. The high-end and expensive HiFi class TAS5766 processing chip from Texas Instruments is still used, and the speaker is composed of 8 original JBL speakers. It performs very well in terms of sound quality and resolution.

Cookai A2 has a rich interface, which is designed on the left side of the fuselage. From top to bottom, there are two USB3.0 interfaces, RF input, audio output, audio/video input, three HDMI2.0 interfaces, coaxial audio output, and network ports. These interfaces can fully meet the needs of most users. In addition, a WIFI antenna is also built in, which guarantees the reception of wireless signals.

The frame of Kukai A2 is made of metal, and the thinnest part is only 9.9mm. After actual measurement, there is no difference between it and the official data. When measured with a dime, it seems that the thickness of the TV is only half the thickness of the coin. The design style of the back of the fuselage is also unique. The metal rear panel is adopted. At the upper end, a groove design is made to play the role of reinforcing rib, which can better protect the screen from damage, and also plays a certain role in heat dissipation. At the lower end, the appearance is the main control part, which is composed of the main board and other components and audio. This design of "light up and heavy down" moves the center of gravity downward, making the TV placement more stable.

Start up

When the user starts the machine for the first time, he/she should make corresponding simple settings, which can be operated according to the intimate boot steps.

First, wait for a moment in the boot screen, and you will enter the setting step. The first is to set up a wired or wireless network, and the second is to log in with an account. If there is no account, you can register through mobile phone verification, and then you can officially enter the system for use.

System ui:

Cookai A2 is equipped with the latest coocaa OS 5.5 system, which has improved the smoothness of operation. After simple settings, I can enter the system home page interface, which gives me a rich feeling, and the design style of the interface is very simple.

In actual operation, the system is very smooth, and there is no stuck crash. The system provides up to 9 categories in terms of resources, namely: recommendation, film, TV series, children, variety show, summer screening, VIP member, military and channel. And when each category is opened, more video resources will be presented to users. This also better reflects the concept of "big content" of Cookai.

When users register their accounts, Kukai A2 system will give them iQiyi members who have been there for two years. Yes, it is two years. You heard me right. Some friends recalled that they should not worry about looking at Jiumen. It is true. In addition, in the VIP area of the system, many blockbuster cinemas can be watched. On the left side of this interface, there are many sub categories, which users can choose according to their own viewing needs.

game:

The system's built-in Kukai application circle provides a wealth of games and software downloads, and also enjoys a detailed classification, including recommendation, list, video, education, games and life. Similarly, after opening each category, more software content will appear. The Kukai application circle not only provides software download, but also provides management of all installed software, and can also provide services such as corresponding optimization and garbage removal for multiple complete machine systems, without installing third-party software.

Cookai Children:

The coocaa OS5.0 system has also set up a special child mode for children, which is really very considerate. In addition, there are detailed guiding operation steps for the first use. Adults can explain how to use it to children while watching. And the official has also customized a small devil's errant remote control for children, but users need to buy it separately.

The design style of Kukai children's interface tends to be cartoon, which is very popular with children. Its main contents are divided into: Babies like to watch, Babies like to learn, Babies like to play. Babies love to watch content, providing children with a wealth of cartoons, both domestic and foreign hot animation, which is very rich in content. Babies love learning. They provide children with some video resources about learning, and classify them according to their age, so that children can learn something and have fun while watching movies. Babies love to play, which is nothing more than teaching children to learn some manual origami and other tutorials, which can better stimulate children's interest.

Child lock:

The function of children's locks is very necessary for parents. Nowadays, children are becoming more and more hands-on. In order to prevent children from operating carelessly, causing failures or software uninstallation, and even property losses, try the function of children's locks. In the cool kids mode, press the left direction key to call out the setting menu, find the parent control, enter the answer to the question, and then you can enter the children mode setting interface, where you can limit the time period, or customize the software to effectively prevent children from playing addiction, thus forgetting to do homework or affecting vision and other problems.

The built-in Coocaa Shopping Mall is the content of in-depth cooperation between Global Shopping and Shunfeng Optimality, which is divided into five categories: hot money recommendation, special stores, home selection, sports fitness and quality life. Coocaa OS5.0 is unique and innovative, and it has built traditional TV shopping into the system for the first time, turning it into an on-demand content display. Users can go shopping in the mall in their spare time, collect affordable goods, and purchase easily with diversified payment methods.

Blessed are fitness loving users. The built-in Kukai Fitness Center is a very good software. It can be hard connected to fitness equipment through Bluetooth connection to set corresponding training goals, so as to achieve the corresponding purpose of weight loss and fitness.

Smart home:

Nowadays, smart home is not a new word. However, the design of Kukai to connect smart home with TV is commendable. You can easily control smart home products on TV, which really increases the convenience of users in use. Under the smart home interface, a variety of smart home APPs are also built in, such as Xiaomi's Xiaomi camera, Qingmi's smart socket, etc. Users can choose to download through their own needs, and can also connect with smart home products through the wifi network, so that users can control on the TV in the future. You can also make more detailed settings in the More option.

Music:

Kukai A2 system also provides users who like karaoke with a variety of styles of music. In addition to the KTV of its own Kukai brand, it also provides resource integration of software such as Tianlai karaoke and QQ music.

There is also a popular square dance. Tianlai square dance provides a variety of styles of dance and music. Users can dance while learning, and can also dance square dance at home.

set up

The system's setting menu is also very rich, and the interface is very simple, which is divided into six functions: network and connection, image and sound, same setting, account and payment, upgrade, and about this machine.

Brief browsing of system UI (video)

Here is a video about system operation for your reference.

Sample comparison:

The screen is the most important part of TV components. Cookai A2 is equipped with an RGB 4K screen, with a resolution of 3840X2160, four times the definition of 1080P, an ultra wide viewing angle of 178 °, a response speed of 8 milliseconds, and a static contrast of 4000:1, making the picture quality more realistic, as if you were in the scene. How about the actual test results? The following will be explained through some image tests.

In the process of proof comparison, the photos taken after the backlight of Kukai A2 is adjusted to 100% of the maximum brightness are the original images without any modification. Due to the factors of photography technology and environment, there will be slight errors, which is only for reference. Through the comparison of the above three groups of samples, we can see that the screen performs fairly well in terms of image reduction, but in the first group of samples, the performance of sea water and sky is overexposed, which is unnatural. In the comparison of the second group of samples, although the overall picture is not too abrupt, the overall picture is cold. In the comparison of the third group of samples, the difference is almost the same as that in the previous two groups, with only slight changes in blue and green. The cold effect is not so serious, and the overall performance is excellent.

HDR sample comparison:

What is HDR TV?
Compared with ordinary images, HDR (high dynamic range image) can provide more dynamic range and image details. According to the LDR (Low Dynamic Range) images with different exposure times, the final HDR image can be synthesized by using the LDR image with the best details corresponding to each exposure time, which can better reflect the visual effect in the real environment. Under the effect of HDR, the color of TV is more vivid, the black is more profound, and the objects in the picture are more clear. At the same time, the color tone of the picture will also be expanded, which can alternate between cold and warm colors. 4K HDR is a more advanced image processing technology than 4K. With the combination of HDR films and TV sets, TV shows more vivid colors, the contrast between the brightest and darkest pictures is clearer, the objects in the picture are more real, and the color gamut of the picture is therefore expanded. At present, HDR video can be divided into Dolby Vision and HDR 10 formats. Next, follow the editor to see the picture comparison of Kukai 50A2 TV in HDR mode and without HDR mode.

Through the comparison of the above three groups of live pictures, it is easy to see that the pictures in HDR mode are different from those in HDR mode. The color of the picture without HDR is cold, the details are poor, and the whole picture seems to lack vitality. However, after the HDR mode is turned on, the picture instantly achieves improvement. The color performance is rich, the color saturation is on the high side, and the picture as a whole adds a little warm color, the details are outstanding, and the light is more friendly and vital to people.

4K test chart:

For 4K TV, we are looking for meticulous picture quality performance, so the screen is the soul of a good 4K TV. Although the current 4K film source is still limited, it still cannot stop people from pursuing high-end picture quality. Nowadays, there are many 4K series TVs on the market, but the screen quality is really endless. In order to obtain greater profits, manufacturers often cheat consumers by passing off inferior products for superior ones. In order to enable consumers to better understand or purchase 4K TVs that truly have the display level, we will use the high-end 4K test chart launched by Professor Qian Yuankai to enter a detailed test description for Kukai A2.

Because the shooting is affected by the environment and lighting, there are certain errors. Please look at it for reference only.

On the 4K TV resolution test chart, the precautions in the test process are introduced in detail, which can be easily mastered by novice users. Cookai A2 is equipped with an RGB 4K screen, with a resolution of 3840X2160 and a definition four times that of 1080P, so it is particularly excellent in the display of picture details. Is this really the case? It can be seen from the whole picture of 4K test chart that the small color blocks for testing the detail ability can be easily identified, with clear boundaries and bright colors. The black and white lines on the upper left are clear. In terms of text expression, the red and blue arrows point to the position, and the font can be clearly identified. According to the comprehensive evaluation, the screen performance of Kukai A2 is excellent, which is true 4K.

Kukai A2 screen also performs well in color performance and visual angle test. The overall color transition is natural. In the Y, C, M and G, B, R color distribution map, the triangle distribution between colors shows that the color restoration is very accurate, and there is no color deviation at the intersection of color edges. The 9 spheres on the right side show the color scale, and the light and shade are too uniform and soft. Therefore, this screen still performs well.

In the test of Kukai A2 in this link, the tonal levels are rich, the brightness and darkness can be displayed to about 253 and 8 levels, clearly visible, the hierarchical distribution map and spherical map should be able to show all levels, and the transition from black to white is very natural. After the above tests, Kukai A2 is within the qualified range and performs well. It is really a screen worth having.

Trial evaluation summary

After more than ten days of trial evaluation and testing, the impression and experience of Kukai A2 are both good. It is a very well-designed smart TV. The frame of the fuselage is made of metal, only 9.9mm thick. The back of the fuselage is also made of a large area of metal panels, and the groove design is added to make it a more solid protective screen. In terms of sound quality, 8 original JBL speakers are used, which can be rated as cinema level in terms of sound effect. In addition, it also supports the function of one button connection to Bluetooth speakers, bringing more fun to users. In terms of configuration, the latest top TV chip Mstar 6A938 is adopted, with 2GB operation memory, 8GB flash memory, RGB true 4K 50 inch ultra-high definition LCD screen as the standard configuration. It also supports the popular HDR and MEMC motion compensation technologies, with good viewing effect, true color restoration, and no picture jitter and dragging. It supports the latest Bluetooth APT-X protocol and is equipped with HDMI2.0, USB3.0, HDMI and other interfaces. The video resources are rich, and users are also given two years of iQIYI members. The wonderful videos will never stop, and there is also a customized cool child mode for children, which can teach and entertain. There is still a lot of content collected by Kukai A2, which indeed responds to the official concept of "big content". For consumers, it is really a smart TV worth having.