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HA INFO U2 Plus USB DAC / Headphone Amp Review...perhaps the best cheap USB DAC headphone amp? - Page 3

post #31 of 41

Just a bit of info, if people end op in this thread looking at this amp.

I ended up returning mine, cause the DAC was emitting a high pitched buzz whenever connected, and the volumepot, had quite a bit of imbalance and noise. This was really bad on sensitive headphones and IEM's.

post #32 of 41

I have been eyeing this: http://www.ebay.co.uk/itm/HA-info-U2-Plus-V2-AD1852-USB-Sound-Card-DAC-Headphone-Amp-U2-/261156704057?pt=UK_AudioTVElectronics_HomeAudioHiFi_Amplifiers&hash=item3cce270f39#shId

 

has anybody had this exact model or purchased from this seller?

 

I too am looking to drive a HI 2050

post #33 of 41
I orderer that model from them,returned it as described. Seller provided fast communication and excellent service. But my experience is that it's a bad match with the 2050. Could have Been a faulty model, so you could try it out and see if it works.
Edited by Psymon - 5/11/13 at 6:52am
post #34 of 41

has anyone ever order HA info U2 plus2 from this site..http://www.ab-system.hk/index.php?route=product/category&path=73

post #35 of 41

Can you guys confirm the spec of yours? I'm looking at one of these at the moment but its reported to come with the following components?

 

  • USB: PC2001 USB-B (Plug and Play & Support ASIO)
  • TENOR TE7022L usb reciever chip, supporting native 24bit 96Khz
  • AD1852 DAC
  • TPA6120A2 Headphone Amp chip
  • opamp : JRC5532DD

 

Any thoughts?

post #36 of 41

This is the cheapest amplifier I've ever had......and is unbelievable good!

post #37 of 41

Waking this Thread to life to say that i just ordered one of these, the new version with an OPA2134. Looking forward to see how this little "all in one" unit sounds. 

post #38 of 41

The "HA Info U2 Plus" should be able to work with a lot of Android smartphones / tablets, because the "HA Info U2" is reportedly working with a Samsung Galaxy Note 3:

http://www.tellementnomade.org/forum/viewtopic.php?p=181534&sid=c43fa8fddd10ea80745e1f56f4e11a70#p181534

 

Galaxy Note 3 >> USB OTG cable >> HA Info U2 >> AudioLab M-DAC >> headphones

 

 

The Android-powered Galaxy Note 3 has a native USB audio feature.

For Android devices which don't have a native USB audio feature, the USB Audio Player PRO (UAPP) app including its own USB audio soft driver could allow the Android device to work with a USB DAC like the "HA info U2 Plus".

http://www.head-fi.org/t/638387/best-android-music-player-app/240#post_10120655

There is a free trial version of UAPP available on Google Play store.

post #39 of 41

I just got the U2plusv2.. Some hiss at low volume. the volume pot is not very linear. And I cant get it to play any high res audio. 24/96 with wasapi and foobar2k is a no go. Also does not shot anymore then 16/48 in windows. It sounds good though, just not at advertised :(

post #40 of 41

Same experience here

Quote:
Originally Posted by Arvan View Post
 

I just got the U2plusv2.. Some hiss at low volume. the volume pot is not very linear. And I cant get it to play any high res audio. 24/96 with wasapi and foobar2k is a no go. Also does not shot anymore then 16/48 in windows. It sounds good though, just not at advertised :(

Same experience here... Hissing sound and no 24/96. The seller (bigbargainonline) has changed the description since I ordered. Also some noise when turning the knob, occuring past 11 o'clock.

post #41 of 41
Quote:
Originally Posted by funkoid View Post
 

Can you guys confirm the spec of yours? I'm looking at one of these at the moment but its reported to come with the following components?

 

  • USB: PC2001 USB-B (Plug and Play & Support ASIO)
  • TENOR TE7022L usb reciever chip, supporting native 24bit 96Khz
  • AD1852 DAC
  • TPA6120A2 Headphone Amp chip
  • opamp : JRC5532DD

 

Any thoughts?

Yes, and after tried some Opa I'm back to the JRC5532.

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