Jelly's Path to Belief Chapter Four: When IE80邂逅 LDAC - Sony MUC-M2BT1 Bluetooth Upgrade Line (on)

- "A broken line must be divided into upper and lower articles to deceive coins?!"

- "Keke, things are not like everyone thinks, everyone listen to me explain..."

--"I don't listen to me, I don't listen!"

Behaving, haha ​​~ still have to explain why you want to divide up and down the article, originally I would like to write a piece of original to talk about the recent intrusion of three audio products - Sony MUC-M2BT1, Sennheiser IE80, Wei Sony The GR07 Classic can be changed version. However, after the basic outline was listed, it was obvious that the subject matter before and after the two parts was more obvious, and it had not been able to think of a proper title to unify the full text. Together with the limitations of the younger brother's writing style, he tossed and tossed for half a month to write such a point, so he had to break his wrist and divide the M2BT1 original into two parts. Of course, the most important reason is to avoid lengthy results leading you to value your friends too tired eyes, as we believe it or not...

Since Jelly I believe in Sony and Motorola, this series is based on Sony MUC-M2BT1.

The previous article (this article) mainly introduces the appearance, functions, and experience of M2BT1, as well as the combination of IE80 and M2BT1 solutions and experience. The second part mainly introduces the effect of M2BT1 with GR07 classic changeover version, and compares the difference in sound quality of LDAC/aptX/SBC with different Bluetooth music transmission modes, so stay tuned.

Small Science

MUC-M2BT1 is a wireless Bluetooth audio receiver introduced by Sony. Its main function is to let the earplugs of the MMCX interface get rid of the shackles of wire and evolve into wireless earbuds. And support Sony's own LDAC high-quality transmission technology, to a large extent to protect the wireless transmission of music quality.

Listen to music wirelessly and leave the wired annoyance. LDAC can transmit about 3 times more data than normal Bluetooth (A2DP SBC) (at a maximum transmission speed of 990kbps), allowing you to listen to Hi-Res Audio sound quality when listening to Hi-Res Audio music wirelessly.

MUC-M2BT1 Series Sony's official website Sony Store, online mall, Sony's official online store, Sony's official Sony headset website, a comprehensive introduction to the Sony headset product features, specifications, prices, official samples, applicable accessories, product multi-angle demonstration and The latest promotions and ordering information will enable you to fully understand the Sony headset products and let Sony headsets add fun to your music appreciation! Direct link

Unpacking & Appearance

Jingdong did not search this equipment, so in a Tmall Sony store with a price of 724 yuan to start, now (three months later) that store's good price can be 679 yuan, and I saw a After Tmall shop coupons even only 664 yuan.

m2bt1-Tmall Tmall.comm2bt1-Wire-Audio-Visual Home Appliance Accessories-Audio Video, Complete Category, Welcome To Buy! Direct link to list.tmall.com

For Sony's products, every time you unpack it, you can feel the good pleasure brought by faith recharge (and bring your own BGM). Perhaps this is the "Kando" in Mr. Hirai's mouth!

The packaging style is a simple black and white color scheme, and the basic features have been marked on the front - NFC touch connection, LDAC transmission technology, Bluetooth wireless connection. Since there is only a receiver and no audio unit, there is no Hi-Res Gold Label, and the sound quality mainly depends on the ear plug connected to it.

The devices marked with support are Dafas, including but not limited to XBA-Z5/A2/A3/H2/H3/300AP. In theory, the earplugs of the MMCX interface are all supported. Earplugs that do not support the MMCX interface can also be used. Supported by the curve method ~

Dafa is still doing its own thing. The warranty card is placed outside the protective film and it is well kept. However, in theory, as long as there is a regular purchase certificate can be applied for official after-sales.

However, I also found a warranty card inside the box... Messy...

The body of MUC-M2BT1 is made of matte plastic, and the neck material is made of rubber. It does not look sexy and colorful with the H.ear series MDR-EX750BT. Only the black color scheme exists as a deep and low-key force.

The rubber part is relatively less thick, but it can be deformed appropriately to adjust the curvature, taking care of users with different thickness and neck.

The wire is not thick, but it is long.

MMCX connection interface, right red left gray.

The NFC touch connection chip is integrated on the right side, but the measured touch connection is less sensitive.

The buttons, USB charging interface, and indicator lights are all on the left side. Press the power button for a long time to turn on the computer. After the computer is turned on, it does not take the user into the pairing mode. After the computer is turned on, the function of the power button is to play/pause/talk. The bar button next to the power button integrates the volume adjustment (short press) and the switch song (long press) function.

It is necessary to whisper about it. After each long press and song, M2BT1 will pause for a moment and play it again before switching songs. Obsessive-compulsive disorder is very awkward. It is said that EX750BT has this minor problem.

The USB charging interface has a protective cover. The opening method is gentle. After the cover is pulled out, the cover can be adjusted.

Made in Malaysia.

The effect of wearing on the neck is like this, it feels good, very light, that is, the headphone cord looks a bit longer and stays a little longer...


The conventional Bluetooth connection method does not need me to say more, talk about the dual device connection (call + audio) program. The audio output of our mobile phone has two channels, one is an audio channel for playing multimedia audio such as music/video, and the other is a voice channel for voice output such as phone calls and WeChat voice. The above two can be independently divided into two lines and output to different audio ports. Thanks to Bluetooth4 technology, the M2BT1 supports the simultaneous connection of two devices, one of which can be a mobile phone for Bluetooth voice calls and the other can be a music player. When the latter uses the latter to play music, when the former receives a phone call or a WeChat voice, the music playback is stopped and the voice device is activated. After the call is completed, the music player continues playing.

Take my MOTO Z Android mobile phone as an example. After connecting to M2BT1, on the Bluetooth settings page, uncheck the media audio, leaving only the call audio option. At this time, M2BT1 is in pairing mode. By connecting the ZX100 player with LDAC, you can enjoy LDAC high-quality music without taking off the earbuds to answer the phone.

The M2BT1 adopts Bluetooth 4.1 technology and comes with low-power transmission technology to ensure its life. The official life time is 7.5 hours. In actual use, the LDAC connection can actually last for 8 hours at a volume of 10/15.

The manual states that the unit can only be charged using the USB port on the PC. For Sony Home's rechargeable audio products have this statement, may be to prevent some of the inferior charger output current instability will damage the product. However I have been using a (fairly) charger/mobile power charger.

In fact, regardless of whether the M2BT1 is charged by the 5V==2A DC output provided by the millet connector or the computer USB output, the output current can be gradually reduced to a safe value, but the current flowing through the former will be a The initial 2A or so drop slowly, and whether the transient high current has an effect on M2BT1 cannot be further explored.

The charging time provided by the official is 2 hours and 30 minutes. It is indeed 2.5 hours after the actual measurement through the USB charging of the computer, the power indicator light goes out, indicating that it is full.

Compared with its predecessor, the MUC-M1BT1, the appearance, function and life of the M2BT1 have been comprehensively improved.

Compared with MDR-EX750BT wireless Bluetooth headsets launched in the same period, M2BT1 can select the corresponding MMCX earphones according to the user's preferences. The options are wider, more professional, and the listening experience is even higher.

With IE80

The Sennheiser IE80 started with direct mail at £113.43 in the United Kingdom during the Black Friday last year. Counting the Bank of China 10% Haitao cash back, equivalent to about 1030 yuan, the price is very good.

Haitao Limited Prime Member: SENNHEISER Sennheiser IE80 In-Ear Headphones £112.48 + £25.88 including direct mail (approx. ¥1190) IE80 New replenishment, fever-fighting ~ UK Prime members of the Amazon price is £134.97, select direct mail China's tax refund price of 112.48 pounds, plus tax payment of 25.88 pounds to reach about 1190 yuan, can be more cost-effective with the recent credit card cash back, the value of friends who did not buy the last time you can consider starting. IE80 is an upgraded version of IE8, the flagship dynamic earplugs, was hailed as an artifact artifacts, materials and workmanship are Tieniu love pineapple | Value 500 Comments 518 Collection 242 Direct link View Details


IE80 related originality has been a lot, I will not be forced to haha. There is no feeling for the Sennheiser family's products, and the IE80 is purely for its popular reputation and cost-effectiveness. From the perspective of packaging accessories, IE80 is still worthy of its flagship status.

The metal storage outside the earphone storage box is too tedious for the winding process. After a few times, the drawer is thrown.

Randomly equipped with a variety of earplugs, clean up the combo function of the bar, ear hook.

In the picture below, the right side of the earbud panel is an adjustable bass knob. Although I have always used a level 1 (5 levels in total), the amount of low frequency is also sufficient.

The wire is soft and thin, and it often falls out when worn around the ear, and then it slowly develops memory changes.

Although IE80 is a line-changeable design, its interface is not an MMCX interface and therefore cannot be used directly on M2BT1.

However, human wisdom is endless. Microblogging Post Bar Zhang Aunt walked around and found that several fans also had this need. There are two solutions. The first is to open the M2BT1 to change the headphone cable, you need to have a strong hands-on ability. In addition, you can only connect the IE80 to the M2BT1 after changing the line. It is not practical for me to have a lazy chicken. Then he took the second option - the conversion line. Ma Yun has a ready-made, known as a lossless conversion, 68 yuan a pair of free shipping.

M2bt1 ie80_taobao search m2bt1 ie80_taobao search s.taobao.com direct link


After I received it, I found that one of the conversion lines could not speak out. After the exclusion test confirmed that it was a problem with the line, I had to contact the seller and send it again.

The conversion line is a twisted pair cable. The principle is that one side is connected to the IE80 via a two-pin interface, and the other side is an MMCX interface to connect the M2BT1. The technical requirements are not complicated, and the seller earns the craft money.

The interface has glitches and is rough.

The effect of connecting to IE80 and M2BT1 seems to be a bit odd on the neck, especially when you go out, you may have to look at the puzzled eyes of the unsuspecting people.

The actual wearing effect is as follows, I personally can also accept it, as long as the tail of the patch cord does not tilt up to look fairly pleasing to the eye.

Finally, talk about the sound quality, we all know that IE80 is characterized by strong low-frequency. The IE80's sound quality was mentioned in my previous ZX100 original.

In the original line with the ZX100 player can be a good reflection of the IE80 mellow full low frequency, the performance of the drum beat the boxing instrument to the meat, the intermediate frequency is very delicate, restore excellent, high frequency, although not IE80 strengths, but basically will not break the sound Sharp and transient phenomena.

And when this combination of IE80+M2BT1 is played under LDAC, it feels that the low frequency is still quite sufficient, but the details are not so obvious. The IE80 was originally vocal, and now the vocals are farther away. The sound is like a layer of film, and the accompaniment of the instrument is even a bit confusing. Although the features of IE 80 itself are still preserved, the resolving power is reduced, and the vocal and background details are lost to some extent. In general, the use of patch cords under the M2BT1 IE80 is not as good as the sound quality of the original line, there is probably a gap of 30%.

At this point, I can only attribute the loss of sound quality to the loss of the patch cord during the conversion process. Because the gap between the original line and the M2BT1 when using GR07c is not too big, please look forward to the next section.

If you have an IE80 in your hand, in order to get rid of the shackles of cable and sacrifice some of the sound quality, it is not worth spending more than 700 blocks to start M2BT1. Also have to look at their own needs, and later into a GR07c replacement version, most of the time I still use the wired way to listen to IE80.


Smart Livestock Farming

Use modern information technology to accurately grasp the growth process and growth dynamics of poultry, conduct dynamic monitoring and trend analysis of poultry at various growth stages, and provide fast and efficient remote guidance for poultry breeding, house management and epidemic prevention and slaughter, and improve the ability of fine breeding and house management, timely detection of problems in breeding, formulate technical countermeasures for poultry breeding and house management, put forward poultry breeding and house management opinions or suggestions, and better carry out technical guidance to promote poultry production.
Collect valuable like animal body temperature, shed temperature, humidity, ammonia concentration, individual animal diet data, estrus indicators of female animals, abnormal changes in weight, and even individual animal mood indicators, etc.
These are not just data. They can be analyzed and excavated in depth through system and software integration, which can provide a basis for the farm to make better decisions, realize intelligent management, and increase operating income.

Livestock Health Monitoring device,Animal Health Monitoring System,Livestock Diet Monitoring Device

eSky wireless Inc , https://www.eskygpsiot.com