Hello, everyone, I am ylfly, I like to buy 狙 狙 狙 狙 狙 (狙 瞎 什么 什么 什么 什么 什么 一定 一定 一定 一定). Afterwards, I plan to open a small series (but it is estimated that I often break my mood, 23333).
After a period of tossing, including all manner of hearing, a large number of blind monks (including second-hand return of blood from the flesh), and repeatedly, on this National Day holiday approaching, stage summary of their pseudo-HiFi listening system.
The first is the sound source. Through his own experience, he found that he is not a very serious music enthusiast. He usually listens to music while working or surfing the Internet. Therefore, PCHiFi is naturally the main choice. Before that, he played CD for a while. , I bought a Rega Apollo-R CD player and also bought several CDs, but the most common scene is still on a PC, so I use ThinkPad (various models) notebooks as the audio source. This part takes into account that the entire system is still very elementary, so no optimization has been made in electricity.
PCHiFi is indispensable to the good interface. I have conducted comparisons with He Qinghua NFB-15, Shuangmu Sanlin M6, Chord Mojo, Shanling H1.2 DSD and other all-in-one machines, and found that the independent interface is very obvious for sound improvement. I use this interface as an example. After the upgrade, it can be said to be an ear. The dynamics and the extension of both ends are obvious.
At present, this is only a product that uses the XMOS U8 solution with a relatively high cost-effectiveness of 1,000 yuan or less. The Longsheng QA730U, this interface is also introduced on Aunt Zhang, and the specific features are not described in detail. I value it most. There are two points: 1. In terms of sound, this is the most low-frequency dive and density that I have heard in the XMOS program. I am satisfied with the most, the sound is not very floating; 2. In terms of playability, this thing is in terms of power supply. Can add a lot of buff. I will elaborate on the power supply aspect later.
After talking about the interface, it is supposed to be decoded. However, in my system, there is no traditional meaning of decoding, and grand launch of an artifact that can destroy three views—the Perot D2P digital amplifier.
The silver small box in the lower right corner of the picture is it. Now the clearance price is only 300 pieces. How wonderful is this small thing? Let's talk about playability:
1, USB, coaxial, analog Line-in input readily available, although the USB interface compares slag (PCM2706 program), but when necessary, the PC can use a print line to pick up and you can speak out! Coaxial is now my main access method, and LINE-IN can also play a role in flavoring with some relatively strong independent decoding.
2, the power supply, the machine rated input voltage is 24V, and this guy's voltage range is how much? A picture:
Not let you see the 18V on the back of the Weft power supply. It's just a drizzle. Didn't see the charging pouch above? This is a lithium battery pack with 18650 change, its voltage is only 9V! 9V allows this amplifier to boot and sound! According to follow-up tests, 5V can be turned on and out loud... Passive passive systems are not a dream!
In addition to playability, say the voice, this small thing rated output power is the largest 50W x 2, push a variety of flat, KK is simply easy, even with the Diwale version of the ATOHMI GT1.0 are no pressure, I believe they have seen the above figure Di Valle in it, it is not mine, but it did put together a boring destruction of the three views, two machines blindly listening to the state of Percy did not even lose a lot of hearing, individual tracks even sweeter ... ...
Taking into account the current main use of this amplifier to push the headset, so it is still a low price received a Hifiman amplifier adapter.
The role of the adapter is mainly to perform impedance matching, so that when the amplifier pushes the headphones, the sound will not be flushed. Although RKV Verto is more effective than cattle adapters, the price tag is over 6,000. This Hifiman adapter is already a good choice at its second-hand price. It should be noted that the digital amplifier is not You can directly connect single-ended headphones! Digital amplifiers can not be directly connected to single-ended headphones! Digital amplifiers can not be directly connected to single-ended headphones! Three important things to say.
Headphones, not much to say, Hifiman's HE500:
After listening to the HE400i, HE6, and HE1000, the individual recognized the flat panel's exquisiteness. Helpless HE6 and HE1000 are more expensive, just encountered HE500 of a super cabbage, decisive income, this HE500 refits the head beam of HE560, and adopted the original balance line of HE6.
It must be said that the HE500 is indeed a weapon for low-cost vocals, and after removing the damping cotton, the sound field is larger, the sound is more transparent, and it is more omnivorous. The HE560's head beam greatly improves wearing comfort. Although the HE560's earmuffs are more comfortable, individuals prefer the sound of the original HE500 earmuffs.
Finally, talk about the power supply and wire parts. This system is not deliberately pursued in terms of power supply and power supply. It is natural. The first is a Weiliang dual output linear power supply:
Custom time is 9V and 24V, Talema cattle replacement, all the way to 9V is to improve the 730U interface power supply, after comparison, linear power supply than the built-in switching power supply is significantly improved, in addition, because the 730U can support wide Voltage (9V-12V), so you can properly increase Weiliang's output voltage:
Modify the white potentiometer above the circuit, and finally adjust it to 11.5V (remain 0.5V margin).
Another buff of the 730U is the power supply of the USB port. Next to the interface is a Marshal TeraLinkX2 5V linear power supply, which is used to enhance USB power supply through the Zebra's USB double head cable. In addition, there is a sound technology SoundTech M5 USB filter to further adjust the sound. According to personal sense of hearing, the effect of MC5 Convergence Line is obvious, but for some of the tracks, there are improvements, but in some other tracks it is not entirely the case, so whether you like to see it or not, let's put it here.
At present, most of the wire rods are good-resistant, including Canaimei's crimped coaxial cable and speaker cable (not shown in the figure). Canare's line price is not expensive, and the sound is relatively balanced, although it may not taste like it may be too dry. , But at a low price, it is still an error-free choice. The USB cable is currently called the "Far Ferrari" Baoerxingk printing line, and will be changed in the future when it meets the price of cabbage.
In summary, this is the case. This system provides a very high quality at a very low price. Since the choice of headphones also avoids the digital taste to a certain extent, it is more resistant to hearing, and then continue to toss it later. Thank you Everyone.
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