Polar meters Z4X without screen TV unpacking and sound quality evaluation
In accordance with established practice, this product has been exhaustively tested for 10 days. During this period, the speed of the firmware iterations of the Extremely Meters left a deep impression on me. It can be said that “the judges should not be disappointed when they are on the 3rd,†which also reflects the extreme meters. With strong technical strength and excellent service quality, this is what consumers value most, so let's like it.
First give the Z4X hardware parameters:
As a smart micro-projection, Z4X uses a long-life LED light source, the brightness reached 580ANSI lumens, about 2578 lumens, it can be said that the brightness is the highest in its class; the resolution of the light machine reached 1280x800, and the distance can be 2.7 meters Projected a 120-inch or so clear picture; internal integration of the world's top audio brand Harman Kardon, and its own chief engineer Alan Michel personally tuned, and at the same time with TI's high-fidelity digital amplifier; with 4 core CPU, 2GB memory, 16GB Flash memory, GMUI system, with HDMI, AV, coaxial, USB3.0, Bluetooth 4.0, WIFI-5G and wired network interface; comes with mango VIP service, you can watch more than 3000 movies and 100,000 TV dramas and other legitimate content. Such a gorgeous lineup of hardware and software is integrated into one product and it is indeed looking forward to.
Along with the Z4X, it also includes two 3D active shutter glasses, which are packaged in white with the host.
The Z4X's outer packaging is very concise, which is in stark contrast to its rich connotations. The Harman Kardon logo is clearly visible.
Gently lifting upwards, the white and black collocation classics will be vividly presented, giving people a simple and neat visual enjoyment, but also a high-profile claim that there is a 180-inch “Super TVâ€.
The high-density foam tightly encapsulates the Z4X, and the succinct instructions also herald one of the highlights of this product – support for gesture control.
The Z4X's host uses high-strength engineering plastics, a white body, and a vinyl-like top cover. The top disc is not just for decoration, it has a more important function, that is to accept gesture control. Imagine that when you sit on the sofa, the Z4X is placed on the coffee table in front of you. It is a very pleasant thing to hold out your hand and perform operations on it.
Slide-type switch design is very user-friendly, the dust cover and power switch combined into one, push the lens baffle, Z4X will start, in human-computer interaction to do quite place.
The right side of the light machine is where the Harman Kardon sound system is located. The opening on the panel not only plays a decorative role, but also helps to construct the sound field or the heat sink.
The host back interface is complete, including two HDMI input interfaces for connecting a computer or other playback device, an AV input interface, a headphone/coaxial common interface, a USB3.0 interface, a USB2.0 interface, a LAN interface, A 19V power interface and a RESET interface. Almost half of the space on the left is occupied by the cooling system.
The Z4X has 3D gesture control capabilities. Inside this vinyl-like top cover, it has a 3D gesture recognition chip, which has a recognition accuracy of 150dpi and a sampling rate of up to 200 times per second, enabling accurate capture and recognition gestures. The power indicator is also designed just right. Both ornamental value and practical value. This is the overall feeling of the old demon I designed for the Z4X product.
The three feet on the bottom are adjustable in height for easy horizontal adjustment of the projected picture. Of course, if you need to lift it, here is the hole of the fixed adapter plate.
The black bottom case is removable, and the Z4X reserves a 2.5-inch hard drive to support large-capacity SSDs. The turbo fan below the hard disk also provides effective heat dissipation for the hard disk.
According to common practice and to the teardown link, Z4X teardown difficulty is not high, after the four screws are removed, the use of nails can easily open the top cover, tear down the difficulty of two stars (★ ★). Even so, we must remind readers that there is a risk of dismantling and do not imitate.
It can be seen that the space utilization rate of the Z4X is very high. In order to make the product as small as possible, it is indeed a great deal of effort. The left side of the figure below shows the main board, the upper right side is the Harman Kardon speaker, and the lower right side is the light engine and the focus motor.
From left to right: light lens, push-pull lens barrier, two-channel Harman Karton.
The Z4X optical engine adopts DLP optical projection technology from Texas Instruments and has a dual-optical path optical engine, which improves the brightness by 30%. It is the highest brightness in the same type of product.
The side of the machine is clearly marked with “WXGAâ€, which means that the aspect ratio is 16:10 and the display resolution is 1280×800.
The two-channel Harman Kardon speaker was personally tuned by its chief engineer, Alan Michel. In conjunction with Texas Instruments' ultra-low-distortion digital amplifier, it was excellent in terms of sound quality and low-frequency performance. At the same time has a 3D surround effect, watching movies is awesome.
Through actual testing, the conclusions are as follows:
1, this speaker is a need to worry about, the time takes about 2-3 days, 8 hours a day or so, the volume control in two-thirds. When I first got it, the treble was a little distorted, and it was no longer distorted after being down.
2. From the aspect of sound quality, the sound field is loose and atmospheric, natural and delicate, and the three-frequency performance is more balanced (higher than high).
3. In the three frequency bands, the low-frequency dive is more powerful, with a moderate sense of volume, and it is not dragging its feet, especially for the drums. The medium-frequency is prominent, mellow, natural, sweet and full of texture. When listening to pop music, the vocals The treatment is very mellow and expressive; the high-frequency part is real, clear, bright and free of burrs.
4, for the performance of multi-device music, sound positioning is not chaotic, the overall level of sense, three-dimensional sense is more clear.
However, after all, this is a mini-class speaker that is limited by the caliber of the speaker and is recommended for use in smaller rooms, such as bedrooms. In a small room, a small caliber can also send bass with a sufficient sense of volume, but the large caliber does not have a clear advantage. Instead, it feels less transient than a small caliber. In a larger room, a small caliber basks in the bass energy and bass. The force is obviously not as big as it is. If you have higher requirements for sound effects, you can use a coaxial cable amplifier, or use a wired / Bluetooth headset.
In terms of heat dissipation, the Z4X is also worth noting. Excluding the large area of ​​pure copper heat dissipation at any cost, with the high efficiency of the turbo fan and large-area heat sink fins, the Z4X is not afraid of the hot summer, and does not run hot for too long.
Here is the 3D gesture recognition chip:
The entire top cover is covered with an induction grid:
Regarding the built-in antenna, the Z4X will fix the 2.4G remote control signal, WIFI 2.4G, WIFI 5G, and Bluetooth 4.0 to different positions, thereby avoiding mutual interference.
The Z4X's remote control follows a simple design concept that makes it easy for the elderly and children to operate. It is worth mentioning that the remote controller is designed with two focus buttons for convenient focus operation. Because it is a 2.4G remote control, it does not need to deliberately aim at the host during operation, and it can achieve 360° without dead angle remote control. (The upper right is a smart empty remote control for comparison)
Along with the Z4X, there are two 3D active shutter glasses - "XGIMI DLP PRO". The Z4X uses the same shutter 3D technology as the DLP cinema projector, which is much brighter and more three-dimensional than ordinary polarized 3D.
[image quality measurement]
First of all, personally think that the main factor affecting the projection effect is light, as long as the audio-visual room can be as dark as possible, million yuan 1080P projection investment 2000 + yuan screen and direct investment in the white wall is not very different. If the curtain below 2,000 yuan is not as good as a white wall, don't waste money. White wall effects are ideal for DLP projectors. The main role of the screen is: not all places have white walls, not all white walls are clean.
If the reader thinks that the effect of the curtain must be better than that of the white wall, then the old demon will test the quality of the Z4X with a poorly painted white wall, which is more convincing.
This is the true screen effect of the Z4X, and it is a direct wall (not a curtain). I only cut the black side of the picture, and the rest did not move. I know it's hard to believe that this is the effect of the projection of more than 2000 yuan, but this is a fact. Do not believe and then look down:
Chromatography test:
Color transition test:
Pure color test (black in the upper left and upper right corners caused by the camera lens):
Contrast test:
Screen convergence test
Interference test:
Main interface:
Focus ring:
startup screen:
Picture details, Z4X's diamond pixels:
There may be readers who say that this is a false picture, not a screen shot, how the projection can have such large dynamics and such vivid colors. OK, give EXIF:
[to sum up]
Z4X is a very good intelligent micro-investment product, and its official website starting price of 2699 is indeed a reverse. Measured about 2.8 meters to cast about 127 inches effect, frame 2.4 x 1.5 meters, diagonal 3.6 meters. Has a long-life high-brightness LED light source, built-in Harman Kardon sound over similar products, excellent picture quality, excellent workmanship, itself is an Android player. This price also received a large screen and an Android set-top box with Harman Kardon sound system, enjoy the cinematic audio-visual feast, its high cost performance is obvious.
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