Sony (SONY) PHA-2A Portable Headphone Amplifier Silver 3299 yuan Jingdong direct link seal Aunt Zhang visited her for so long. . Pian point for (jin) industry (bi) I asked for a dog (fen), in order to protect the coward's smile, into the Z1, Z2, 39, SBH 80, M504 (in no particular order), to the current PHA 2A. . . Sony Dafa! ! ! Turning back, as an initial fire, into the pit earplugs: Senhai CX980, and then continue to guard the widower last year, weeding 1A DAC. Simply said that under 1A, entry is not bad head wear, listening is better than CX980, only low-frequency than CX980, the overall quality is stronger than CX980 a lot However, listening to the 1A DAC is becoming more and more unsatisfactory. I began to listen to the soundtrack and later wanted to change the front end. State brick? ZX1? (Android system, NetEase cloud is toxic and convenient), in this case. . . Why not put it up OK, start looking for the amp. . As a cable powder, of course, it depends on Dafa production. The current product lines PHA1, 2, 3, and PHA 1A, 2A; PHA 3 richest people have to 3000 +, second-hand also have more than 2700, too expensive! Rechargeable! PHA 1, 1A evaluation is generally general, the final fixed in 2 or 2A, 2A is a recent push of new products, and with a new 4.4 balance port (awesome look), thrust and PHA 3 quite the same, the official price of 3299, the richest family for many years 2500 or so. Protect the coward's smile! Buy buy buy! ! Out of the box Arrived out of the box, slag light source, the most real situation to show Packaging display... Positive small gold mark, 4.4 balanced mouth mark BALA...BALA...BALA... Out of the box, I stupidly did not see the OPEN on the buttocks. At the time, I was still thinking that the design of Dafa would not be easy to leave untouched. . . Dafa standard black box. . Body exposed ~~~ Positive small gold standard beauty All accessories, even fewer two straps! ! ! Once again prove my TOO YOUNG. . . . Ontology display There is a hint of overheating on the back, but during the actual use of 4.4, the balance of listening to about 2 hours only feels hot, there is no hot point of PHA 3 reaction. Charging, just in contrast to the 2W mAh Charging Size for coarse grains thickness. . In fact, the head is not small, much larger than the PHA 1A. . . Careful value-friends may find that the GAIN gain switch has become third gear, although I use HIGH, three input ports to charge the PC, fruit machine, and Android port; positive reference to the first official map, the middle is the switch and the volume, Both sides are 4.4 balanced ports and 3.5 stereo ports. experience feelings Currently using 4.4 balanced push Z5 Full of faith Digital Turntable with IPAD MINI4 or S7 EDGE In terms of sounds, it's simple to say that it itself burns, and the more metaphysical things are given to big brothers. . Compared with the 1A DAC, the main low-frequency dive is better, the high-frequency is more full, Z5 said too low frequency is not much feeling, the vocal is simply warm and warm If you listen to KOKIA's song with this simple stick! Z5 phone direct push contrast PHA 2A push 4.4, the amount .... can not say that the phone push is not good, and the gap of 3.5 mouth may not be obvious, compared to 4.4 balance push really all aspects of the pill Z5 3.5 original line and 4.4 balanced push, 4.4 compared to 3.5 significantly lower frequency dive better, more compact, slightly expanded sound field, the separation is slightly better, vocal warmer, more details. Since I have not heard the sound of the double-ended balance port of the PHA 3, we cannot judge the difference between the single-ended 4.4 and the original double-ended balanced port. Since Dafa began to promote the 4.4 balanced port, is it really not to sell a wave of wire? ! PHA 2A on the CX980 is not significantly improved, only the low-frequency elasticity is better, and the mid-high frequency is still the same as the original The contrast between 1A and its own DAC is not obvious. The details are a bit more, and the triple-frequency enhancement is limited. . However, the official balance line of 1A 4.4 has a 1A price! Anyway, I do not buy Wife, SOLO 3, 1000X, 535 these popular only tried in the store. . It's not a shame to look at this to sum up Okay, back to PHA 2A As the first portable amp for Dafa to promote the balance of 4.4, 2A's positioning is between PHA 2, 3, and it is unlikely that black bricks and bricks will be used. However, this set is more satisfying to me now. . If you have a good headset, and now you can use a mobile phone or a low-end player, and then you want to play with 4.4 balance, you can consider the Dafa's "entry" level amp Seriously, the performance of the 3.5 PHA 2A port is not satisfactory, but the 4.4 balance port is indeed very satisfying. The input for the equipment and the cost of the wire (the 4.4 official line of Tucai Dafa again is really expensive!) Worth, personally think that if the price can make a 70% off is still quite good, mainly because of the poor .... Members are welcome to exchange opinions and give opinions. It is inevitable that some of the mistakes in the initial burning of Mengxin will be inevitable. the above.