iFi iDAC同iUSB Power測試（當iUSB 遇上Meitner MA-1/SOtM；在p.6，#106)

rocco1113

I brought the Labkable Duo (new verision) to Avantgarde and tested with iUSBPower.  The improvement is substantial.  If you bought iUSBPower, you must try the duo head cable too.

liting

rocco1113 發表於 2012-12-2 09:09
I brought the Labkable Duo (new verision) to Avantgarde and tested with iUSBPower.  The improvement  ...

師兄，可唔可以詳細的講下有幾大進步。

Audiophilelp

rocco1113 發表於 2012-12-2 09:09
I brought the Labkable Duo (new verision) to Avantgarde and tested with iUSBPower.  The improvement  ...

Why a duo head USB is needed?

hercules

liting 發表於 2012-11-29 23:27
我無想過用 USB power 比 SBT，但會試兩頭 USB cable，而家以我知道就有 lockable 有兩頭 cable，但係貴過 ...

Can using USB to 2.5mm cable to supply to SBT, but not sure how much current can iUSBPower can supply, if the yes, iUSB Power and SBT can be play in three style

1. IUSBPower USB out power only to SBT 2.5mm 5V DC
2. Place between SBT USB out and USB DAC
3. IUSBPower Power Only USB Out to SBT 2.5mm 5V DC in, and SBT USB out to iUSBPower USB in, Then USB data + power to USB DAC, but this connection on single IUSBpower may have power or ground loop subject to SBT and IUSBPower circuit, more suggest to use on two separate iUSBPower unit, maybe someday you guy can gather and do group audition

liting

It is very interest to compare the IUSBPower to the linear power supply.

DigitalMana

周末帶咗兩個小毒物回家，一上機。。。不得了。。。立刻call幾個友人來見證（後來發覺呢個喺極之不智的決定）。

小毒物對USB的提升不是有改善咁簡單，簡直喺令到USB有黑膠味

但兩個小毒物未在我家過夜就已經俾豬朋同狗友（喺，一個喺豬朋，一個喺狗友！)立刻拐帶咗，今次真喺引狼入室。。。

現在要過幾日等我營救返兩個小毒物先出到詳細d的報告。豬朋同狗友，我你們！

HiFever

Why USB Power Is Vital.

obee

DigitalMana 發表於 2012-12-5 12:12
周末帶咗兩個小毒物回家，一上機。。。不得了。。。立刻call幾個友人來見證（後來發覺呢個喺極之不智的決定 ...

黑膠味? 即係有炒豆聲?

DigitalMana

何止炒豆，重跳埋線添

DigitalMana

今天FB見到有新 iDAC 的 user review：

http://www.facebook.com/iFiAudio

Joe Adler and friends did an extended evaluation of the iDac. He writes:

We compared the iDAC to the Lindemann, Wavelength, and AMR CD-77. The results were interesting... We spent 5 hours listening to all of these DACs but our main focus was on the new iDAC from iFi Audio.

Our conclusion was that the iDAC is a transformative device with the ability to convert a humble computer into a wonderful music player. It proves to us that you don't need to spend megabucks to hear good music. Nor do you have to put up with edgy sound to hear detail, as the iDAC's high resolution is accompanied by silky smooth transitions and rich tones. The sound stage is bold, open and deep.

In Bellini's "Norma" we heard the soprano walk in front of the alto while they both sang. In Patricia Barber's "Winter" we finally discovered that the strange sound that accompanied her, the piano and the bass, was the finger slide on the bass fret, not a plaintive cricket. And to top it off, China Forbes' tongue clicking start to "Una Notte a Napoli" suggested we run for cover lest be drenched in saliva.

This not to claim that this little device bested AMR's CD 77 or the Wavelength Cosecant, far from it. But to get into that league you really do have to spend megabucks.

johnmo

耳聽為實

ivanchan

講到咁神...有點保留

mahi

大部份sabre dac都會帶來換然一新的聽覺，如EE，mytek，anedio，w2s，etc。不過idac係有更親民價錢，用來配active speakers我覺得係一絕。

DigitalMana

呢排飛来飛去，唔機會出報告，不過看到CA上有兄弟同Aqvox USB power supply 比較過：
注：Aqvox USB power supply系linear power supply （線性電源）

I received my iFI USB Power yesterday morning. Had a quick refresh with a few familiar tunes using the Aqvox USB power supply first of all and then connected up the iFI USB Power. Initially the ground was not lifted with the provided switch. The bass notes became more differentiated during heavy electric bass passages, the soundstage receded to a more believable and more preferred position and gained more dimension and inner space. The voices also found their appropriate new position within the soundstage. Glare was reduced and there was more sweetness to the upper registers, violins etc. On moving the switch to the ground lift position there were further improvements along the same lines.

I got a brainwave then and thought to myself could I ever have too much of a good thing, so I reconnected the Aqvox PSU and then connected the iFI USB cable to the output of the Aqvox connector? I perceived an increase in weight of the sound in general, but it seemed to be at the expense of characteristics I perceived as advantages with the vanilla iFI USB alone. For the moment at least I have reverted back to the iFI alone. Internet Radio via iTunes is also sounding particularly good today, even in another room from the system, being dynamic, crisp and musical from top to bottom. Recommended.

http://www.computeraudiophile.co ... c-13832/index6.html

DigitalMana

Stereophile review 咗 iFi iDAC + iUSB Power

http://www.audiostream.com/content/ifi-idac-iusbpower

This was another review where it was mostly all fun from the first to the last notes played through the iFi duo. Like the Halide DAC HD ($495), Wadia 121 ($1,299), and Resonessence Labs Invicta ($3,995), I enjoyed every musical minute.

obee

liting 發表於 2012-12-2 18:08
It is very interest to compare the IUSBPower to the linear power supply.

No, it should compare with good linear PSU (not those using LM317 or 7805)or battery

jimmypkh

我部SBT已經用緊靚線性牛，照計電源係有質素。咁再用iUSBPower仲會唔會有提升呢？有無師兄試過？，

hkcl614

jimmypkh 發表於 2012-12-29 18:12
我部SBT已經用緊靚線性牛，照計電源係有質素。咁再用iUSBPower仲會唔會有提升呢？有無師兄試過？ ...

我果部剛剛到在.......
回家試下話您知



P.S.我部SBT都用緊靚線性牛 ，(自己DIY的)

alamakazam

用 sotm usb pci 同 iFi iDAC

ok?

better performance?

DigitalMana

記得Computer Audiophile 上有人試過，效果幾好，比linear Power Supply 好。加埋個iDAC重毒