มีใครสั่ง Pre Order Portaphile 627x บ้างไหมครับ

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http://www.head-fi.org/t/585786/multi-portable-amp-thread-12-amps-reviewed-shonyun-306-added-10-03-12
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rice: $550 + $10 US shipping and $25 international shipping

Size: 2.824' x 3.19" x .748"

Product notes: There is an audible noise when you turn the amp on and off.

Type: Portable amp

Volume control: Analog, knob

Power connector: Power Adaptor/Charger Included (5V), non-standard

Battery life: Powered by Single 3.7V Lithium Ion (Included, Rated for 500 Charges), Runs 4 Hours on a full charge, Battery charges in 2.5 Hours when Ampliifer is charged while off

Features:
- Three Channel Design, Isolated Output Ground, Four Layer PCB with 3 x OPA627 and 6xBUF634's, Jung Multiloop Topology, Elna Cerafine Caps
- External Hi/Low Gain Switch (7/2)

Works with 4 pin headphone plugs: Yes

Sound: The 627 was designed for sound quality first and foremost, and it shows. The entire spectrum has a ‘naturalness’ to it, and a recreation of space with more layers and detail than any other amp I have heard in addition to being larger in all directions compared with any other portable amp I have heard to date. It even improves upon the internal amp of the Anedio D1! The bass control is the best I have heard, conveying a greater sense of power with more weight for bass heavy tracks, but it doesn’t sound enhanced, just more true to the recording. Background bass lines are presented with excellent definition and the right amount of power, yet still remain in the background resulting in better realism. While some BA driver IEMs don’t have great low volume bass performance, the 627 gives more oomph at lower volumes than other amps giving a better low volume listening experience. But the 627 isn’t all about the bass; the midrange and treble are also extremely natural and effortless. Space recreation within the midrange is exceptional with resolution that is a step above the competition. When a headphone is capable of performing at a high level, the 627 will push the performance level further.

The 627 has no problem driving any of my custom IEMs, however with my ultra-sensitive CIEMs such as the DUNU DC4 I noticed all the noise that various players have which my other amps seem to not pass along. This includes an electrical noise from my modded iPod 5.5G and hiss from the iPhone, but the 801 and DX100 are quite clean. The 627 increases the soundstage size while improving the presentation focus along with better dynamics resulting in a more transparent and dynamic sound overall. Testing with the HD600, Pro750, and LCD-2 V1, the 627 handled all quite well with very good control and enough power to drive even the LCD-2 without a problem. While the 627 pushes the HD600 and Pro750 to higher levels than the other amps, the improvement isn’t as much as with the LCD-2. Overall, clarity is noticeably improved for the headphones I tried to go with more impactful and prominent bass, but within the scope of the music.

Don’t expect to hook the 627 up to a low end headphone and get significantly better results. When I paired it with an iPhone 4S I was rather disappointed in comparison with higher end sources, but when sourced from my modded iPod or something better driving a high end headphone the results were exceptional.

Channel Imbalance: Essentially none unless you listen at extremely low volume levels to very high sensitivity IEMs

Hiss: The hiss that is present is the type that increases as you turn the volume up to dangerous levels, so it isn’t a factor for music playback unless you feed it a weak signal or ultra-quiet tracks you really need to turn up.

Interference: Slight (only audible between songs) with a Blackberry Bold sitting on top of the amp loading a web page

Summary: The Portabile 627 is simply the best portable amp I have heard to date period. It can drive CIEMs to a higher level of performance and is the first portable that makes the LCD-2 sound as good as my desktop Anedio D1, and every other headphone/IEM I have thrown at also sounds great. The 627 offers a very natural, layered, spacious, and controlled sound that is a pleasure to listen to. It improves upon amp circuits in the DX100 and the 801 GAME card and outperformed other amps such as the Cruise, Stepdance, and Pico Slim in a convincing way when sourced well and feeding high end headphones/CIEMs. The negatives are that the battery life is relatively short at around 4 hours, and the size, while not huge, is on the larger side of the spectrum. You can use the 627 as a desktop amp with the included wall power adapter, and that might be a great idea for those that want both a portable and desktop amp!