Aune B1 is a headphone amplifier launched by HIFIDIY, and its internal structure is fully discrete Class A, which is also the first portable player adopting this architecture. In addition to the fully discrete Class A structure and the relatively powerful internal hardware, its appearance design is commendable. As for pricing, Aune B1 is more attractive.
Aune B1 currently has two colors, silver and black, and the leather color on the back is also different. The price and hardware of the rest are the same. The body of Anue B1 is made of a whole aluminum block, and six surfaces are CNC treated. Finally, the process of wire drawing and anodic oxidation is adopted, which is quite good in overall texture performance.
In fact, many audio products will choose to use metal materials and then anodic oxidation process, which can not only bring good texture, but also improve the grade? Two transparent window designs are added to the front of Aune B1, which is the finishing touch and very beautiful.
These two transparent window designs have no practical use. In other words, the two built-in patch LEDs will light up for status display when working. Of course, the orderly and symmetrical elements are exposed, which has an indescribable romantic plot of science and engineering. (What the hell is QAQ?)
There are two leather belts on the back of Aune B1, which also play a role in embellishment design. Of course, the most important thing is to reduce the friction between devices when used together.
The top is the Line In and Phone Out interfaces, and has a knob volume button. There is no clear pointer indicator for the volume knob, only the+- on the left and right sides shows how to operate, which may cause certain obstacles in use. It is recommended to use the knob to the minimum at the beginning.
At the bottom is the mirco USB interface, which is only used for charging. Aune B1 is equipped with 4000mAh ultra-low resistance lithium battery, which claims to be able to work continuously for 10 hours in the 32 Euro A 20mw gear, while the 32 Euro A 40mw gear can work continuously for 5 hours, so the overall endurance performance is OK.
On the left are keys and volume display keys. The volume display of Aune B1 is quite interesting, which is also a rare function in this kind of products. When the power display key is pressed, it will be on above the key, and the remaining power percentage will be displayed by the number of times it is on. In terms of keys, there are three keys: GAIN, GLASS A and power key.
GAIN is the gain, GLASS A is the current control, and the power key is naturally the power switch. Although the three buttons are all made of aluminum alloy, their workmanship is relatively ordinary in terms of mold precision, and they are obviously movable and not tightly assembled.
Aune B1 output adopts pure Class A output bias design, which can provide 40 mw Class A power on 32 ohm headphones, making sound performance have good high-frequency extension and well-defined IF, and the overall voice color is mellow and warm. In addition, the Class A design also means that Aune B1 works at full power even if there is no signal, and its calorific value is relatively impressive. Internally, Aune B1 also uses four layers of high-frequency PCB board, AR8501 MCU control chip and+- 8V power supply design, which also makes the performance of Aune B1 in sound very desirable.
In terms of internal structure and overall design, Aune B1 has distinct advantages over similar products. As the first portable headphone amplifier with a fully discrete Class A structure, it actually represents that its working heat generation will be quite obvious. But its price is only 1180 yuan, which is really attractive.
Of course, Aune B1 can only be used as a headphone amplifier, which has a significant impact on its actual performance. Whether it is the quality performance of the front-end LO port or the line recording is an influencing factor, and the specific use experience will be carried out later.
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