For professional reasons, I particularly like audio products when I'm in school. Although I like it very much, I can only be an ordinary mass powder at best. For metaphors such as HIFI, I only occasionally make fun. For example, in October last year, he went to participate in the HIFIMAN high-end product audition (port). Some time ago when I swiped Weibo, I saw the activity of forwarding Weibo to participate in the Tournament of Beyerdynamic A20. Nobody turned to it. The two yellow Vs that were worth buying before had also participated, and they hadn’t thought of joining before. Since they met, they wanted to try it. So, there will be a trial of the Beyerdynamic A20 amp.
This activity lasted until February and it required payment of SF freight (I was 30 yuan). It may be because there are only 3 days of audition time, and fewer people are involved. Those interested can go and see.
For Beyerdynamic, I don't think I need to explain more. Everyone has heard of this name, and many people call it white teeth. Although it is known for a long time, I was the first to contact Beyer's products. The official introduction of the A20's circuit design is the Beyera's reference-class headphone amplifier A1. The discrete output stage provides plenty of driving power. Even high-impedance headphones can get dynamic, open, and accurate sounds.
This product is not much sold in the e-commerce platform, offer 3888 yuan.
parameter:
Size: 164 x 212 x 55 mm
Frequency range: 10 Hz - 100 kHz (-1 dB)
THD (Total Harmonic Distortion): 0.01 % at 170 mW / 250 Ω
Maximum output power: 170 mW/ 250 Ω
No load signal to noise ratio: > 100 dB
Channel separation: > 80 dB at 1 kHz / 250 Ω
Headphone output: 2-way parallel mode stereo output 6.35mm (1/4")
Analog input: 1 pair RCA
Analog output: 1 pair RCA
Net weight without packaging: 1640 g
It seems that the trial packaging is very simple, a storage box, plus a power cord.
The machine is very simple, not too much decoration, the metal brushing effect on the four sides of the machine. The front left is a touch-type power switch, the middle is two 6.3mm output interfaces, and the right is the volume adjustment knob. The frequency range is 10Hz-100kHz (-1dB) and the maximum output power is 170mW/250Ω.
The volume knob is metal, not much damping, 6.3mm output interface is convex.
On the back is a pair of RCA input and output, power jack. Baia A20 put the power adapter inside the machine, 110v-240v universal, maximum power 10W. Made in Germany shows that this machine is made in Germany.
The top is a plastic material, and the gaps with the edges of the metal are not uniform.
The feeling that the German made to me has always been a representative of quality. It can be seen at the bottom. It is difficult for me to associate it with quality. It is an unpolished metal plate. The only bright spot is that the screws are hidden in the four mats, making the machine look simple.
The power cord is very thick, random RCA to 3.5 lines of the interface, bought their own green Alliance.
After the power is plugged in, the power button indicator is red and it is green when you press the power button.
experience feelings
Originally, this audition was to go to a local studio with my colleagues to borrow equipment. Because time was too late, I had to use my own equipment to listen. What is my device? Of course it is a cell phone.
The 1MORE three-unit headset that was measured last year was wondering whether the handset's performance has been brought into play. Plus, this pair of headphones comes with a 6.3mm connector that is just for use.
Still using the last few songs tested, Jay Chou's "In the Name of the Father", Meav "One I Love", Yan Xuemin "Drum Poetry", and the Eagles "Hotel California". The same is the Nubian Z11 MAX mobile phone as a sound source, which sounds to be transparent to the sense of hearing, and other changes are not significant. When the public test last year, I think that using only ordinary mobile phones as the front end will not affect the headset. It turns out that I think more, and the strength of the 1MORE three-unit headset is nothing more than that.
The amp device I only heard at the last HIFIMAN audition session. The player, amp, and headset were relatively high-end devices, and they were not comparable to the random audition. Therefore, I will not comment on it.
Colleagues are also tossing people, and later she went to the studio to audition, over there to help her with a set.
Also got two Baia headphones to audition, T1 and DT 1990 PRO. The Internet has said that A20 and T1 are perfect matches, and I'm quite curious about how this combination feels. When there is time, colleagues will send their own audition experience. If you are interested in this device, you can pay attention to her. Attach the link to her last article at the Nanning Audio Show:
to sum upDo not know why, audio products are not very good workmanship. The previously seen Harman Kardon, sound engine speaker dismantling, are very rough, the last time listening to the HIFIMAN player has the same problem, the work of the Baia A20 is also not too satisfactory. Although the surrounding golden drawing effect is good, other details can be sloppy. The power buttons of plastics have poor feel. The gaps at the top of the joints are uneven and relatively large. The untreated metal blocks at the bottom are even more silent. I can hardly imagine that this is what the media calls “exquisite†products.
Baia A20 is a relatively pure amp (or low-end?), product interface configuration is relatively simple, even the balance of the interface, coaxial fiber nothing. Although there are two 6.3 MM outputs, it is said that the thrust will be dispersed. At present, Tmall offers 3,880 yuan, and Jingdong has more than 3,200 global purchases. See online that Prime Asia Prime has had a price of about 2378 yuan, compared with the country's price is obvious advantages, if you want to buy can wait for the promotion of sea Amoy.
I was always curious about this. With a lossless player, is it necessary to put it on the amp again? Baidu later learned that the amp is mainly used to push those high resistance and low sensitivity of the headset, the general player is not good push. As far as my personal feelings are concerned, if you just listen to what's popular songs, the amp is completely unnecessary - it's certainly nonsense. I am not very familiar with the amp, this amp is more than a thousand expensive than the HIFIMAN EF100, is the brand positioning or an advantage? I can't say it. Specific reviews can go to see the evaluation of two yellow V.
Life is not easy, and spray and cherish.
Advantages: The appearance is simple, the metal wire drawing panel has good visual effect.
Disadvantages: The workmanship is far from exquisite and the interface is small.
I, that night is not blowing no black night. Seek attention and seek rewards!
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