ARCAM rPac, Genial !!! With Supra USB AB, and Grado.

Update 05/07/2015: Very important update for free under the Arcam website at rPac is now available for download ready !:
Under Windows 2.0 as the USB driver is installed for free, so now comes the rPac a Maxiamalauflösung of 24bit / 192kHz! For Mac is not a software update for USB 2.0 are available: here you should every time you start the same time as the power button of the Mac computer the Plus-Minus key on rPac ca hold for 5 seconds, so the Mac at startup with USB 2.0 on rPac. can be seen. This eliminates an annoying plug pulling the USB output of rPac. Under Mac is now so well 24bit / 192kHz at any time !!
Previous review:
Very good USB DAC for PC and Mac !!! The 300-gram and milled aluminum ARCAM rPac achieved fantastic tones. (Assuming there are the usual conditions such as software Foobar with JPLAY for Windows or Audirvana Plus for Mac on board). To connect it goes best with SUPRA USB AB cable, and SUPRA RCA RCA.
Your true skill shows the system with ARCAM rPac on this networking.
Tone characteristic is then phenomenal neutral and honest !!!!
Pleasant, tube-like sound, with the precision of digital technology.
As Aktivbox I take preferably the ADAM Artist 3 with Air Motion tweeter. The ADAM also had a USB port, but only as a "last resort", as compared Arcam rPac hebte the whole system on the studio level.
Arcam rPac headphone output was with several headphones by tested (including GRADO GS1000, RS2i, SR325i, B & W P5, Martin Logan Micros 90 and Bose OE2i) - everything just brilliantly, all impedances and variants operated perfectly !!!
It operates a Burr-Brown chip inside, (5102) of even 32 bits and 382Khz could, but is downregulated at max 24bit / 96kHz (via USB 1.0) and 24bit / 192kHz (via USB 2.0). For USB 2.0 installation you have the USB connector now no longer pull out as a software update for Windows at Arcam can be downloaded for free! (Updated 05/07/2015) For Mac simultaneously at startup, the two buttons (plus-minus) about 5sec. Press together (see details above) (The two knobs are normally intended for volume control). With 24bit / 192kHz one is made adequate for audiophiles material. About HIGHRESAUDIO I downloaded an album with just high-resolution files with 24 / 192kHz: It's delightful to have a sound profit with subtlety and expression for computer hi-fi finally found such as the Arcam rPac. For powered speakers and connected amplifier is a Arcam rPac clearly the best alternative (since top quality finishings switched Chich outputs, no current pollution on transformers etc., as electricity via USB), and thus preferable to stationary installations against Dragonfly from AudioQuest because here also the possibility as described on 24bit / 192kHz and is! The Dragonfly is the best mobile of high-end solution for laptops.
At the sound result is thus not the hunt for 24 or 32 bit the subject, but which software the system drives, which is connected to the wiring rPac, and find where in which Aktivböxchen or amplifier these connections their way eventually.

Tip: Buy !!! buy !!! But please kaufts a SUPRA USB AB and SUPRA RCA. You'll see .... or. LISTEN !!!!!! (Ah yes .... and Grado should have tried Every once .....)