Brand related:

Astrotec is one of the well-known brands in the field of HIFI acoustics in China. It has the first-class cutting-edge sound effect tuning technology in China to ensure that each product has its own characteristics in music performance. The rigorous and meticulous quality and exquisite details make the product more like a work of art with profound connotation in the hands of users.

Personal impression:

I have long been attracted to AstraZeneca. While insisting on self-development of earphone technology, I have well instilled brand culture into each generation of products. Before I came into contact with AstraZeneca, its products gave me the impression of simplicity and vitality, but more can only stop at the appearance, but I have never been able to experience its sound quality. This time, I got AstraZeneca BX50B Although the original version of Astrotec BX50 was launched in July 2015, it could not stop the author from exploring and experiencing it. Together, we walked into the representative work of combining sports and HiFi melody - A Review of Astrotec BX50B.

Astrid BX50B outer packaging and simple unpacking

Ashtree BX50B is gorgeous in terms of outer packaging. Although it uses cardboard box materials like many brands, the surface wire drawing process has improved its overall grade. If you want to give the outer packaging a print mark, Ashtree's exquisite design on this point is enough to convince many people.

The side and back of the packaging box are the product nameplate and parameters and other information. The overall color of the outer packaging is mainly black wiredrawing, and the product photos are well displayed.

Open the delicate brushed outer package, and there is a translucent plastic hard film with a gap inside. After opening it, you can see the Astrid BX50B. What is used for stable positioning is a package made of upper foam cotton and lower hard paper.

In terms of accessories, 5 sets of European food grade silicone earplugs of different sizes, 1 set of ear racks, 1 microUSB charging cable, 1 pair of dual microUSB head data cable, 1 cable body integrated clip, 1 product manual and 1 storage bag, and this official gift of mysterious eggs.

Details and characteristics of Astrid BX50B

The ASTRI BX50B is small and light. Its weight is only 17g, which makes it almost impossible to feel the weight when wearing it. The use of side lead in ear style also controls the stability and comfort of movement properly. The first feeling when you first contact this product is the magnified earrings.

As for the selection of acoustic cavity, AstraZeneca BX50B is equipped with a 9mm dynamic unit, which is equipped with an in ear architecture and secondary tuning technology. The sound quality release is more inclined to the original sound. Long term acoustic accumulation has enabled AstraZeneca to have unique advantages in the development and production of high-quality wireless headphones.

The sound chamber surface of AstraZeneca BX50B is made of plastic technology, but unexpectedly, it has added night reflective color and magnetic suction design, which not only improves the safety of using the product during night running, but also makes it easier to store.

When the back of the left and right earphones are together, the built-in magnetic suction will "gently" integrate the two together, which can play an unexpected role in daily storage.

The gray part of the sound chamber is a magnetic suction design area, and the sound chamber is mainly plastic as a whole. The extension uses TPE material noodle line supplemented with bright reflective colors, making the Astrid BX50 extremely youthful in appearance.

As far as the appearance is concerned, this earphone has not been implanted with the current popular metal technology. It does not follow the trend and insists on its own design style to ensure the overall lightness of the voice cavity, which also makes it a little difficult to get into the lobby in terms of the sense of its grade. It is more inclined to the fashionable sports style that gives the author the impression of this earphone appearance.

Compared with the newly launched version of Astral BX50, the Astral BX50B obtained by the author this time has chosen the wire control in charge input, and the change of the wire control is also the biggest part of this product.

The arched three button design is adopted, and an intelligent noise reduction and silencing microphone is built in. The original microUSB charging port is moved from the sound chamber to the side controlled by wire, maintaining the overall beauty of the sound chamber and improving the stability of the sound quality performance of the sound chamber.

Maybe due to the problem of the internal test version, the microUSB charging port still saw the shortcomings in the injection molding. After asking others, it was the author who had this problem, so I didn't need to worry about the problem in large quantities. The author was just lucky to win a prize.

Astrid BX50B selects British CSR chip, equipped with Bluetooth 4.1 and APT-X audio compression codec technology, which enables it to have HiFi high-quality audio output, faster transmission with reduced delay and lower energy consumption.

In terms of battery life, it takes 1.5-2 hours to fully charge, and it can achieve 100 hours of standby time, 4.5 hours of continuous calls, and 4 hours of music playing. Compared with some popular products at present, the battery life is only moderate, and the lightweight design also leads to the need to make concessions in battery selection.

On the wire material, Astrid BX50B is made of ultra light medical grade TPE material, which can effectively prevent allergy when used. Compared with some products made of Kaislav braided wire, it has more prominent waterproof effect. The extensibility and elasticity of TPT material ensure the tensile strength and improve the service life of the wire body.

The extra 5 pairs of earplugs are made of European food grade silica gel, soft in texture, which can prevent the ear congestion caused by long-term use of the product. The only problem is that the author won the prize again. One earplug has a missing edge.

In terms of suspension effect design, Astrid BX50B has two wearing modes: in ear and ear reinforcement. A pair of cute ear frames similar to "Devil's Corner" are full of curiosity.

The in ear type can be understood by everyone, and the auricle frame reinforcement is a bit strange. The difference is that the external hanging type will produce a sense of depression after being used for a long time, similar to the difference between glasses with frames and contact eyes. The idea of the auricle frame design is based on the ergonomics design, so that the sound cavity can be better fixed on the internal auricle, without relying on the external auricle force, so as to achieve stability.

In terms of wearing experience, the design of AstraZeneca BX50B not only improves stability and comfort, but also ensures the stable transmission of sound quality in the cavity when using, and reduces the rustling sound caused by the friction between the earplug and the inner ear due to loose wearing.

Astrid BX50B Experience

So what kind of changes can Ashtree BX50B bring about in terms of sound quality? I have been exposed to many brands of earphones. By comparison, Ashtree BX50 gives the author a feeling that it can express and restore the original song very well, without too much tonal rendering effect, and release the very real sound quality of the original song into the ear.

The ASTRI BX50B adopts Bluetooth 4.1 and PT-X audio compression codec technology to make the audio quality transmission more stable and lower consumption, providing users with HiFi level audio quality experience.

Long press the middle key "Pause/Play (Power on/off)" to turn on the Astrid BX50B until the work indicator flashes alternately red and blue. At this time, it is in the ready to link state. Turn on Bluetooth to search for "BX50B". If the device is paired successfully, it can be used. The work indicator under the successful connection is blue strobe.

In terms of listening experience, a professional non-destructive player was used to test the voice, drumbeat, low frequency and surround. The author's feelings of Astrid BX50B are as follows:

Vocal: The mid frequency performance is outstanding, the low-frequency diving is fast, the depth is average, and can better interpret the song. The clear vocal is the biggest highlight.

Drumbeat: The conversion of each node is obvious. The instant low-frequency diving ability makes this earphone very rhythmic.

Low frequency: as long as it is a small earphone, the problem of lack of fullness is also found here. Of course, users can choose to replace a larger earplug to increase the filling tightness with the ear, so as to get a better sealing effect of low frequency fullness.

Surrounding: It's not so much a surround as a three-dimensional effect. It's impossible to reach 5.1 surround level in the design of left and right channels. In this point, the author mostly auditioned on the speed of music conversion and the embodiment of details. The overall channel conversion effect is good. Close your eyes to listen, you can deeply feel the switch from left to right, and the details of instrument performance are slightly ordinary, The main reason is that the effect of medium and high frequency is too prominent, and it is difficult to distinguish.

Egg

It's time to tell you what the egg is. In addition to the standard accessories, the official also gave an extra PU earphone storage box for daily storage. It's a very delicate and small box.

Summary of Ashtree BX50B Experience

As the earphone version upgraded again after being launched in 15 years, the original problems have been well upgraded. The styling design with rich sports fashion elements, coupled with the melody of HiFi sound quality, Astrid BX50B has been built into a sports earphone with outstanding sound quality restoration effect and comfortable wearing, which is the best choice for many fashion sports families.