Headphone Heights

RE: There may be a problem with my HiFiMan EF2A -- here's a copy of my post at Head-Fi...

184.167.106.94

genungo

In Reply to: RE: There may be a problem with my HiFiMan EF2A -- here's a copy of my post at Head-Fi... posted by willkayakforfood on July 01, 2012 at 23:37:35

If I were you I would contact the manufacturer. Hopefully, the problem has something to do with your computer settings and is easily fixable...
"He was one of those men who live in poverty so that their lines of questioning may continue." - John Steinbeck

Follow Ups:

I did write to the manufacturer - haven't yet seen a reply. Here's the latest... - willkayakforfood 22:33:22 07/02/12 (2)
Tonight, I continued my troubleshooting efforts, and I'm still pretty much unable to point to anything but the EF2A unit itself as the primary suspect.

Here's a copy of my last post this evening over at Head-Fi:

Okay, further unhappy news...

Switched USB cable: same problem

Switched USB ports (tried both of the other ports - a 2.0 and a 3.0 port): same problem

After all this, here's what I seem to know at the moment:

1) Cables are not the issue.

2) It happens regardless of which USB port is used.

3) It happens with or without any other USB port being occupied at the same time.

4) It only happens with the HiFiMan EF2A (just now happened again - sudden silence now). This problem has never happened with the Audioengine D1, nor has it ever happened with the Schiit Bifrost DAC.

5) Considering all the above, I also doubt it's "the computer's fault" (or could it still be a particular driver issue--even after the driver uninstall/reinstall?)

6) This makes me sad, because the sound of the EF2A is so much more "3D" than that of the Audioengine D1 (which really does feel two dimensional and rather lifeless in comparison).

7) If I can't solve this problem with the EF2A, can anyone recommend a reliable, brilliant sounding portable tube DAC/amp that won't make me miss the EF2A too badly?

8) I've had enough for the night. :(
- Well... - genungo 05:21:07 07/03/12 (1)
  .., it almost seems like the unit was being sold *for a reason*. Truth be told, I tend to be more wary when buying used electronics than I am buying used headphones or loudspeakers. Maybe the seller will offer some sort of refund.
  "He was one of those men who live in poverty so that their lines of questioning may continue." - John Steinbeck
  - Actually, I purchased the EF2A new (via Audio Advisor). Got the Audioengine D1 used (via Head-Fi)... - willkayakforfood 06:51:40 07/03/12 (0)
    The bit of sloppiness in external build quality of the EF2A may be an indicator of the potential for internal quality control issues as well. If the problem can't be solved with the particular unit I have, I will be considering a return or replacement.

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