Since the elimination of LH's GO2PRO, they have tried different players and portable DACs, and found that the biggest bottleneck is my fungus, followed by a variety of pushes and pushes! No way, who called the poor, ah, too tall equipment can not afford to burn, can only insist on small steps to gradually change it.
Reasons to purchaseAs mentioned earlier, fungus is a fact that is inherently immutable, but the thrust of the equipment is not good. This is something that can be solved by putting some money on it. What can be solved by money is not something!
In the entry-level amps, except for a variety of DIY workshops that do not rely on pedigrees to brag their talents without drafting, there are only a few preliminary selections:
The flying proud E12 is the old product, the new version of the A5 is based on the E12A small revision, but unlike the E12, regardless of the A5 or E12A are IEM, that is optimized for in-ear headphones, but I naturally have no love for the ear, big ears Is my food, so desperation can only consider the E12 has been discontinued version;
Kaiyin C5 is also a product of a certain vintage, but it has not stopped production, and before listening to their home N3, the quality is good, and the sound is my favorite type, so included in the list of candidates;
Aune B1, this really classic, many fans have this cargo in hand, but the appearance is indeed ... too "characteristic" a bit, not like it, but the sound is good, so very tangled ......
As a result, nothing was going on with salted fish on that day, but it was inadvertently seen that sellers were making noises in GR-1. It was also remembered when they were raised by a treasured crowd. The shape is very distinctive, and the configuration is not bad. The price is right, so let it go without saying anything!
I heard that there was a small card, so I went looking for it...
AUGLAMOUR/ 徕 GR-1 amp HIFI amp portable phone amp HIFI headphone amplifier 399 yuan Lynx featured direct link Didn’t remove a box first The seller is very ambiguous, even with the SF, so decisively like it!
The white packaging is very mainstream, but the above products are very non-mainstream, but this is the root cause of my fancy. At the beginning, it was thought that the real thing was such a large package cover, it was simply to scare the baby's rhythm!
I heard that there were actually typos on the product packaging, so I watched it a bit, and it really was a typo, and like I used the pinyin input method, the intimacy was doubled.
Open the box, the first thing that catches your eye is a black card with a squeaky LOGO, but this design style is also too jump it, outside the small fresh, inside play black silk, not so show outside the YIN.
The inner packaging of the product is basically black, but as a result, GR-1 that is really riddled with a slightly bronzed metal appearance is very tough. And the actual GR-1 is not as big as the cover.
But what about the 3.5mm audio transmission line (abbreviated to the recorded line)? Even though the length of slotting inside the package is a lot longer, this kind of low-level error should not be ah!
However, when you look at the GR-1, the texture of the surface is indeed very good. The irregular diamond cutting surface, with the brushed metal texture, looks much better than the normal black box.
The manufacturer also comes with a metal badge of the brand LOGO. It is just that the badge, in addition to occasionally picking up a B, cannot be used for any other purpose.
There are manuals, a thank-you note, and a micro usb data cable for charging. At the same time, the function of the amp is simple, and there is no expectation that there will be more things, but it would be better to have one additional storage bag.
The most intuitive feeling of GR-1 is not its alternative shape, but its weight.
Do not look big, but the net weight of 245 grams is even heavier than my touch + iDSD, putting a trouser pocket suddenly feels like a chicken!
Or do not Tucao, say back to the product itself.
Although the GR-1 uses a slightly more sculpted “paâ€, it still feels good to hold in the hand. It is full of weight and solid, and it is estimated that there may not be something on the ground (I certainly don’t Will really fall).
The front also said that the front of the GR-1 uses an irregular diamond cutting three-dimensional shape, in the middle is a recessed half brand LOGO (why use half it?), and the four hexagonal screws that are directly exposed at the four corners are also quite suitable. The sense of MAN of the modeling itself.
The back is also a piece of metal material, but it is a flat structure. It looks beautiful, but it is not wearable. When it is bundled with other equipment, it will be very sour on both sides. So Virgo don't think about it. .
GR-1's main interface and control parts are concentrated in the top, from left to right in the figure is the line out, work lights / switches, line in, volume control knob (seemingly this statement is a bit problem ... ... right?).
It can be seen that the arrangement of each open hole is fairly neat, the spacing is reasonable, and the edge has a rounded chamfer, indicating that the manufacturers are actually seriously designed, and the workmanship is also quite good. The only thing that I found to be less than ideal was that the volume control knob was a bit loose when it was rotated. It seemed to be common to see other people's statements.
The micro USB port for charging was placed in the buttocks. The small round hole next to it was thought to be a reset hole at first, but it was actually a charge indicator when charging. Red means charging, and blue means already full of power!
The standard mode of work is probably like this... I think I think I'm very fucked up, and I'm very much inclined toward the National Brick Party.
Of course, the above is just an unfolding look. The actual tying is like this...
In fact, to this point, I am very much like to talk to rhythm audio designers, you can not do the same with the data input interface and audio output port? Doing both upper and lower sides to get in and out of the line, not to mention my trousers bag can not fit, even the stuffed backpack is very painful!
Just before the press release, the borrowed white tooth DT1770 arrived, so pick it up for a simple test.
Basically, the test equipment is the iPod touch + iDSD as the front end, I do not use the original cable connection with the GR-1, but with my own monster 100 pairs of recording lines (because the original line is easy to contact badly heard), in the middle Cross-contrast a bit with hifiman megamini as the front-end effect; listening headphones is mainly DT1770PRO, in addition to innovative Live!2 and Philips SHP9500 to supplement.
However, before the test, we must first gossip about the GR-1 architecture. The GR-1 uses three OPA2604 op amps to build its power amplification section in accordance with the OP+BUF architecture. The framework itself is not complicated, and the sound coming out is not bad. As for the OPA2604 is also a relatively mature op amp chip, although there is a certain history, but the general evaluation that there is bile taste and high basic quality.
The three op amps speculated that they should still use 2 parallel operations to do the amplification, leaving another one to do signal buffering in the back. This set of frames looks very familiar, and the original Shanling H3A is also a combination of this, but Shanling uses 3 OPA2604 as I/V conversion and LPF low-pass filtering, so it does not have much reference value.
In the power supply part, the official disclosure says that the GR-1 is powered by a 3.7V/2000mAh lithium battery, but generally it will be boosted to 7.4V to have enough voltage output to the back end. The actual test battery life is about 7 to 8 hours, slightly less than the official 8 to 10 hours. The charging time takes about 3 hours, it seems that the micro USB port will sooner or later be eliminated by Typu-C.
The opening of GR-1 is much thicker than the original iDSD, and the sound is warmer. I don't know if this is the so-called “bile tasteâ€, but it can really improve the original straight white digital sound of the ES9018K2M. The least vocal part has become beautiful.
Of course, the noise floor is audible, and I feel that there is a slight decline in the sense of transparency, so in the performance of such as "Lucky Kou" (Nishimura Yukie "Auricularia", FLAC format 44.1kHz/16bits) The piano repertoire will be a few. However, this is not necessarily a one-sided problem with the GR-1, because the iDSD as a front-end has its own op amp, and if the general sound quality is processed through two signal amplifications, it may indeed cause different degrees of degradation. In this regard, I also specifically to consult the rhythm of the old Jia, according to his statement, iDSD actually support LO output, but it is very advanced automatic identification. Anyway, I would doubt it.
However, the high frequency of the GR-1 is relatively stretched, not too tight or deliberately lightened, so it is in the appreciation of violin tracks such as "Brandenburg Concerto No. 3: Allegro" (London Philharmonic "The 50 Greatest Pieces" Of Classical Music, FLAC format 44.1kHz) does not appear sharp and harsh.
The reasoning of GR-1 is 32 Euro/150mW, but there is still a certain gap between the 16 Euro/1000mW of the LH GO2PRO measured before, so it is still weaker in terms of the openness and depth of the sound field, but it is more straightforward than the iDSD. Push is better. This will be reflected more clearly in the DT1770PRO, especially in the vertical sound field, regardless of depth or layering will be significantly better than direct push.
In the midrange vocals, I feel that GR-1 is the most obvious part of the direct push improvement. Whether it is a match with Live!2 or DT1770, we can feel the change in the fullness of the voice. Especially with the SHP9500, the GR-1 can largely compensate for the 9500's overly straightforward intermediate frequency, making the vocal sense of hearing a lot more fluid - even though I am instrumental and acoustically controlled, but occasionally listening When listening to "ã•ã‚ˆãªã‚‰ã®å¤~コクリコå‚ã‹ã‚‰~" ("Aoi Works ~best collection 2011-2016~" M4A format), the voice of handkerchief MM was indeed more beautiful.
In contrast, the low frequency of the GR-1 is not satisfactory to me. The machine itself does not have the BASS increase switch, but artificially raises the curve of the sub-low frequency upward. This is when pairing with the Titan5 low-frequency headphones that feel more overhead, the kind of head-banging that makes me feel awkward will make me feel bad. Even when using low-quality DT1770 with good quality and not a lot of type, if you use a cortical ear pad with a relatively strong reflection, it would be inappropriate, considering only the stuffy cloth ear pads I don't like.
This problem also exists when using megamini as a front end, but GR-1 can still make the sound fuller than some direct pushes, so there are still some improvements in the sense of hearing - anyway, megamini I have eaten for years in a drawer Gray, and there will be some strange current in the match GR-1? ?
With MD machine match? Don't make a fuss. It is a deep belief in Dafa. It is not used to be inserted by you!
As for innovation, AIR also does not need a second house, and there may be counter-effects on the hardware (previously GO2PRO obviously overdrew).
To sum up, you will just look at this combination!
Finally come to a conclusion!
The squeak GR-1's shape is undoubtedly unique, at least free from the appearance of regular charging treasure, in addition to the weight is a bit heavy, and the metal appearance is easily worn out, but generally satisfactory.
On the thrust side, when the GR-1 is equipped with iDSD's Lo output (the old Jia said, doubtful), even pushing the 250 Euro DT1770pro can easily introduce a loud enough loudness. Of course, the quality is different.
Compared with the direct push, the sound is improved. The improvement of the sound field and the mid-high frequency are all audible, but the low frequency makes people feel inadequate. The general amp will provide a separate BASS gain switch and will not be like the GR-1. Directly limited to the "ON" state.
However, what kind of bicycle does the 399 price still want? At least GR-1 means I think it is worth the price. If there is a higher requirement, go on the fly A5 or AUNE B1!
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