So I decided to sell my Musical Fidelity X-Can and decided to purchase one of a popular USB headphone amp from China thru Ebay.
Here is what I got.
AUNE Mini Headphone USB DAC

$149.00

As far as internal components go, everything looked too good to be true.
But I’d decided to pull the trigger anyway.
What do I have to lose, really?
The unit arrived from China well packed and everything seem to be in place. No external abuse by the carriers.
The only problem was the power supply it came with. The box came with a cheap step-down convertor. The output was supposed to be 12V, but it had actually putout 20V instead. Couple of scary sparks and nothing more.
With a proper PS, everything sounds great so far.

It will be interesting to see if it'll compete with a unit priced at 3 to 4 time more.
Will post a review.

Click image for larger version.  Name: Outer.jpg  Views: 302  Size: 235.6 KB  ID: 6199

Click image for larger version.  Name: Internal.jpg  Views: 274  Size: 89.8 KB  ID: 6200

Click image for larger version.  Name: Internal 2.jpg  Views: 283  Size: 83.6 KB  ID: 6201


Internal component.
*Nichicon capacitors
*Muse Capacitors
*Wima Capacitors
*Alps attenuator

*Headphone amplifier built-in.
*USB controller chip Burr-Brown PCM2707.
*Digital input receiver chip DIR9001 with
This chip has better sound quality than the popular CS8412/4/6 commonly used in other DACs. It can play sound with much more detail and accuracy.
*Main DAC chip is Burr-Brown PCM1793 with
24bit/192kHz Sampling Advanced Segment Audio Stereo DAC
*Dynamic Range: 113 dB and THD+N: 0.001%
*8x Oversampling Digital Filter
*OPAMP chip: Burr-Brown OPA2134
*Headphone AMP: Burr-Brown OPA2604+TIP41C*2+TIP42C*2 (Referencing the SOLO headphone amplifier)
*Digital Coaxial/USB input, RCAx2/6.35mm stereo analog output.

JRA