Music is an auditory art and entertainment form that many people like. With the improvement of people's requirements for spiritual and cultural life, most people are not satisfied with the sound quality of some mainstream consumer audio equipment in the current market. On the other side In general, the niche HiFi music that originally belonged to a small number of people began to converge with the public, and some original manufacturers of professional HiFi equipment also began to reduce the price of HiFi equipment, so that most people can also afford HiFi equipment. User pair High quality music is in demand, and manufacturers are also working hard to make HiFi equipment supply and demand strong. At the same time, in order for most people to enjoy HiFi music, some manufacturers have launched professional Class A portable ear amplifier.

Thanks to the Leisheng GR-1 portable headphone amplifier experience opportunity provided by Lei Feng.com, the overall packaging is mainly white, and the appearance of the product can be seen from the front of the packaging. The simple, stable and grand style is also most high-end Hi Fi What the brand pursues. The product logo in the upper left corner and the MIM zinc alloy material at the lower end are introduced.

The back of the package also has the appearance of the product. The upper left corner is the product model and the product information at the bottom.

When you open the cover, you will see the Leisheng GR-1 portable headphone amplifier. The upper layer is the headphone amplifier body, a metal LOGO and an AUX cable. Instructions, USB charging cables are on the lower layer, all products include: headphone amplifier Main body, metal LOGO, AUX connection cable, USB charging cable, instruction manual, silicone strap. Weight: 239g.

The ladder type of the manual is very unique, including the operation method, instructions, product charging, and some main parameters and characteristics, warranty information, etc The description in the instruction manual is very detailed.

USB charging cable, AUX connecting cable

Metal LOGO

For Hi Fi products, besides hardware and quality, "appearance" is also one of the important factors. The Laisheng GR-1 portable headphone amplifier adopts the design of metal body, irregular section surface and flat bottom, which brings Very strong visual impact. Compared with other earphones, the "face value" is significantly higher.

The bottom of the Leisheng GR-1 portable headphone amplifier is the charging port and indicator light. The charging indicator light is red for the charging state and blue for the fully charged state. Built in 3.7V/2000mAh rechargeable and dischargeable lithium polymer battery, with charging time less than 3.5 hours.

The top of the Leisheng GR-1 portable headphone amplifier is equipped with a headphone port (3.5mm) to connect headphones with 16-150 impedance, power switch, analog sound source input port, and volume adjustment. Dual switch of ALPS brand is adopted, without noise and stable performance With a service life of more than 10000 times, the customized volume potentiometer has large torsional resistance and can effectively control false touch distortion.

The voice part is a part of testing moral integrity. The public says that the public and the wife are right, and everyone likes to hear and see. Laisheng GR-1 portable headphone amplifier adopts OP+BUF circuit architecture, and three classic flagship chips of TI OPA2604， Two EVOX 1UF coupling capacitors and two 1.7uF bypass capacitors make the voice more sweet with low noise, low noise, large output dynamics and large thrust. The famous Japanese ELNA filter capacitor can effectively reduce the power supply Ripple makes the circuit music background more pure and quiet.

This article focuses on Apple products as the main sound source, and then tunes the input sound through the ear amplifier, and then releases it through the headset and transmits it to the ear. In itself, like other excellent Hi Fi products, the "Hi Fi" sound output of Laisheng GR-1 is pure, authentic and transparent, without too much rendering. Its biggest feature is to restore the real sound. As a portable ear amplifier, it has greater thrust and is more excellent in resolution, detail reduction and sound field reduction.

After listening to Jacky Cheung's Live concert album intermittently for a few weeks, I can feel the applause from all sides at the beginning. After singing First of May, Jacky Cheung's Cantonese The speech also became three-dimensional, as if you were in the front row of the scene. This restoration of the sense of space on the scene is impossible to hear directly using the player. I chose YUI "HELLO" as the manic song. The drum beat and rhythm are very strong. Do different instruments have At the same position, from the voice of the drummer to the reverberation, you can hear the levels that you could not hear before.

To tell the truth, I usually don't take an earphone when I go out, but occasionally put it in my schoolbag. When I received this Leisheng GR-1 portable headphone amplifier, I thought it would be the same as before. After three minutes of heat You can either leave it aside or give it away. But now I often bring the GR-1 portable headphone amplifier with me. The biggest feeling of the GR-1 portable headphone amplifier is that it is sweet, clear, transparent, slightly warm and sound Natural listening is not tired after listening for a long time. The most outstanding part should be the voice part. The analytical power is very excellent and delicate. On the whole, it is good for most types of music. Play pop music , especially young and American pop music, or rock, jazz, dance music, etc., the sound of this ear amplifier is very right. It is not a cool, monitoring, flat type machine. Its voice is full of youth, heat Definite publicity. I think many young people may like this sound.

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