Listen to the sound of wood ears BOSE SoundLink Mini 2 wireless speaker

Before writing the original two portable speakers, one is Jingdong's smart network speaker, a millet's portable Bluetooth speaker. Now write down another Bluetooth portable speaker in your home, the BOSE SoundLink Mini 2.

This BOSE SoundLink Mini speaker has been sold for two generations so far, and everyone should have received it. It's easy to see the difference between the parameters and the generation:

If the packaging has been thrown, it will not be faked out of the box. Speak directly from the appearance:

The second-generation modelling and generation except for some buttons, interface details and colors, basically no difference, the color is black and silver, there is a black limited edition is black gold color, I this is a black version:

The outer shell is made of aluminum alloy material, with a large BOSE logo on the front metal mesh cover. Through the net cover, you can see the inside and the left and right speakers and a bass diaphragm in the middle. The white rubber strips on the net frame border are twisted. .

The shape of the back is the same as that of the front, and the other diaphragm can be seen under the grille. Regarding the speaker unit of this speaker, I have read the following information. The left and right speakers are responsible for the full range of the cone and the front and rear groups are responsible for low frequency sound enhancement. The composition of the passive resonance film is described in the following figure:

The top button area is made of soft silicone material. The battery, AUX, Bluetooth and other indicators are hidden above the buttons.

The right side of the fuselage is 3.5mm AUX input and usb charging port

On the bottom of the gray rubber non-slip foot pad, printed body information and serial number, on the right is the base charging contact with bayonet.

Base and charger, charger can be inserted in the body and base respectively to charge the speaker

The appearance on the base

Usually wear a silicone sleeve, slightly swollen

Simply put this speaker in all aspects, shape workmanship: nothing said, in addition to the edge of the net cover mentioned earlier, a bit awkward, the other pick no fault, on the table very harmonious. Portability: For me to go out without a package, I can only say that it is more convenient to move around at home, but I will certainly not carry my bag out of my pocket. It is too heavy. Life: Half of the volume can be heard for eleven or two hours. They are all plugged into the base. The battery life is not short for me. Function: Compared to the network speaker, only Bluetooth connection play mode is slightly less, and can not be separated from mobile phones and other devices, Bluetooth supports hot switching. Compared with the previous generation, the microphone call function has become a bright spot, and it can be used as a Bluetooth handsfree. Speaker with voice instructions, such as boot will have a female voice broadcast power. Another speaker can be connected to siri, after connecting the iPhone, long press the middle function key for two seconds to call siri, but the application scenario is not many, the actual frequency of use is not high.

Sound quality: Bose's tuning is a bit harder, this Bose SoundLink Mini has added dual diaphragms, focusing on the performance of lower frequencies, Tsai Chin's ferry, Song Dongye's Anhe Bridge, drums dive there, can feel the table Shocked, but a bit edgy, relatively short. He Jiantian's Qianjiang month, the front of a variety of percussion sounds clear and distinct, tough (do not know how to describe), point to the same, more tight, with a certain sense of field around, but one to the back of the voice part, the background The performance of a kind of musical instrument sounds a little uncomfortable and a bit confusing. Liu Xing's leisurely wild crane, the sound of strength, flexibility, and melodious performance is just right (I think it is very good), this time the low frequency of the bomb played a full score, but limited by the speaker volume and other factors, the end of a few Deeper sounds are accompanied by louder buzzing. A variety of vocal analysis performance is good, such as the sound of aunt Liang Jingru can be a perfect interpretation of this speaker, but listening comfortable, control is very good. The speaker's sound quality performance, or to see whether the song and playback environment is suitable, and the volume and even the distance and orientation between people and speakers will also play a role. However, everyone has different preferences for sound quality. This is not to say how the sound quality of this speaker is. It can only be said that for a non-experienced listener, such a compact size can have such a sound quality performance. ,enough. If you want to purchase this speaker, it is advisable to listen to it with a few songs of the type you like. (I will record several paragraphs for sound quality reference when I'm free to evaluate sony voice recorders.)

Three portable speakers together.

Talk about the characteristics of the three speakers: BOSE SoundLink Mini 2 is undoubtedly the best sound quality, shape texture is also the best, but also the heaviest, with the base even more do not want to put everywhere, suitable for the living room nest on the sofa listen.叮咚 Speakers can be played on the Internet, which is not connected to mobile phones. Listening to the breadth of the music is the best way to listen to the speakers. You can automatically play the recommended songs after you open them. You can hear a lot of songs that you haven’t heard before. The news flight voice function is more mature and can be combined with the network for a lot of interaction. Millet Bluetooth portable speakers, the smallest, life is not bad, you can carry songs, are truly portable. In addition, the sound quality of the latter two speakers I think is worth their price - well, I am a wooden ear.

Because the appearance of some of the above photographs is not very comprehensive, finally go to the (qiang) group (jia) photo (xi) (ma):

Semiconductor Fuse and Ferrite

Fuse refers to an electric appliance that, when the current exceeds the specified value, melts the fuse and disconnects the circuit with the heat generated by itself.When the current exceeds the specified value for a period of time, the fuse melts and disconnects the circuit with the heat generated by the fuse itself.A current protector made from this principle.The fuse is widely used in high and low voltage power distribution system and control system as well as power equipment.

Ferrite is a metal oxide with ferrous magnetism.As far as electrical properties are concerned, the resistivity of ferrite is much larger than that of single metal or alloy magnetic materials, and it has higher dielectric properties.Ferrite magnetic energy also shows high permeability at high frequencies.As a result, ferrite has become a non-metallic magnetic material widely used in the field of high frequency and weak current.Due to the low ferrite magnetic energy stored in the unit volume, saturated magnetic induction strength (Bs) and low (usually only pure iron 1/3 ~ 1/5), and thus limits its higher requirements in the low-frequency magnetic energy density in the field of high voltage and high power applications.

Semiconductor Fuse and Ferrite,Fuse Cutout, Protection Fuse, Square Fuse, Fuse Link, Ceramic Fuse

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