For Singers, it is necessary to have an earphone to play the power of high-end headphones, because most high-end headphones have high impedance and low sensitivity, especially some big ears. In order to better improve the quality of music, Laoshao's home may have been full of different types of ear amplifiers, decoding and other professional equipment. For ordinary users, perhaps I just want to pass the boring time with music when I am on the subway, bus or going out, but I am tired of the same sound quality effect of mobile phones and MP3 players. The portable earphone amplifier may be a better choice. It can not only increase the power of the earphone, but also make the earphone produce more excellent sound than itself. The following author will introduce you to a very cost-effective GR-1 portable earphone amplifier from Leisheng Technology!

When I first got the product, I felt heavy. From the outside package, we can see the overall shape of this GR-1 portable headphone amplifier. It can be seen that Laisheng Technology has made a lot of efforts on the appearance of their product, and it seems confident.

After a simple unpacking, you can see the product. The appearance is basically the same as that on the package, which is very three-dimensional. At the same time, there is a product list!

The whole body of Laisheng GR-1 portable headphone amplifier is processed and polished with titanium alloy, which is very exquisite in technology. The front also presents a unique three-dimensional shape of metal, giving a very cool visual effect. At the same time, the titanium alloy material has a very strong anti-interference ability!

The back design is relatively smooth, and the metal LOGO and lettering appear strong!

On the top of the earphone, you can see two audio access ports for analog signals. The sound is transmitted to the earphone through the mobile phone or MP3, and then amplified through the earphone, and output to the earphone. You can hear wonderful music!

It is worth mentioning that the switch of Raytheon GR-1 adopts the dual switch of ALPS brand, and when the switch is toggled, there is almost no noise!

The volume knob, also made of metal, is said to be specially customized by Laisheng for this earphone. It has low rotating noise and distortion!

The bottom of the earphone is a conventional charging interface, which uses MicroUSB mainstream interface. you 're right! It is the interface of your Android mobile phone data cable. You can charge it happily if you find one!

While ensuring the cool appearance, the grip of the Raytheon GR-1 is also very good! From the figure below, we can see that there are products designed to match the radian of the fingers, Hold it in your hand without putting it down!

Perhaps because of the metal shell, the overall weight of the Laisheng G2 has reached 238 grams. As a portable product, this is not a light figure. Many times it may be much heavier than your mobile phone!

After looking at the earphone, we will look at other accessories. The metal logo in the packaging box is basically an ornament, which has no practical use. I remember someone asked the relevant product managers of Laisheng on Weibo, what can this LOGO be used for? The person in charge answers: Open the~bottle~cover! So I tried it with a skeptical attitude, and it can be very solid indeed!! ha-ha

With the product packaging, a 3.5mm pair of recording wires was also worn. The wires are very thick, and the joints are wrapped with conventional gold plating technology. At the same time, they also have excellent toughness, which is convenient for later binding and bending!

Finally, of course, there are some conventional accessories such as charging cables, product manuals, and of course, this dark strap, which can be used to bind with mobile phones or MP3 players very conveniently!

Next, let's talk about listening sense, which is undoubtedly the key to evaluate the quality of any ear amplifier product! Laisheng GR-1 The classic flagship operational amplifier chip OPA2604 of Sanli TI Company is used to form the OP+BUF circuit, which has low distortion, low noise, large output dynamic and large thrust! It must be no stranger to this chip that has been burned for a long time, and it has a good reputation among the people who burn it. Especially, the bravery it creates makes people talk about it with relish!

The author took the "most suitable" IPC from the "second room" for audition experience. As we all know, IPC is the most typical representative of Apple's "boiled water" sound. After the addition of Laisheng GR-1, the sound quality has been significantly improved. The three frequencies of high, medium and low have been strengthened as a whole, and the performance is more obvious in terms of analysis. Usually smaller details can be heard clearly after being amplified by Laisheng GR-1, especially the background sandhammer sound in Ferry, Give people a feeling of immersive! But high resolution will also bring more accent in some popular tracks, which makes people feel uncomfortable! In terms of thrust, it has achieved a qualitative flight, and it is not a problem to directly drive the big ears with high resistance!

Summary

Laisheng GR-1 As an entry-level earphone with a price of only 399, the price performance ratio is very high in this price range, especially its metallic appearance. It can be seen that Laisheng is making a product with heart, and The addition of TI's classic flagship operational amplifier chip OPA2604 makes its sound very excellent, but its beautiful appearance also pays a lot of price, such as this weight. If not for Shaoyou, few people would like to take it out. This will lose the meaning of portability! However, each product has its own target audience. If you are a beginner player of HIFI, spend 399 hours to experience it The effect of this classic flagship chip OPA2604 is very good!

Get free trials and professional reviews every day, follow the Woaiqiku official account, and get 2 free opportunities to receive digital products every day!