Is it worth adding a Linear Power Suppy to Mojo. Since it more or less seems to run off the battery and power is just going to the charging circuit I was not sure if it would make much difference. And no power is used off the USB data input. I've seen some on ebay for $50 to $150 from China...

HEK Upgrade was extended indefinitely. http://www.head-direct.com/index.php/exclusive-offer-for-loyal-he1000-v1-owners.html

For those that upgraded that live in USA, after you send them to NewYork address do they forward it to China. Or is the upgrade done in NewYork. When you received V2 where were they shipped from. Do you receive a new pair or do they move your drivers into a new shell.

If I buy a used pair of HE1000 V1's and they are not registered to first owner can I get away with upgrading them to V2's?

Use USB with a PC. You get the full range of formats over USB and most accurate timing. You automatically get ASIO/Wasapi with USB on Windows too. You don't need an exotic USB cable either. Sit back and enjoy.

I just bought both of those as well and compared them in my review of mojo.   Review is here http://www.head-fi.org/products/chord-mojo/reviews/18088   I'll be curious of your opinion.

What does this post mean?

  Again, I'm not an MQA fan. But this comment is also unfair. And also doesn't belong in this thread.   If say a recording was recorded at 768 and Mixed and 384 and released at 44, 192, and 384 (all FLAC)   Is the 44 Considered "Lossy"? Is the 192 Considered "Lossy"? Is the 384 Considered...

​I am NOT a fan of MQA for some of the reasons you sited. But I think it's unfair to go bashing MQA for a group of folks that look very favorably upon MQA or want to have an open mind about it.   Like he said there are plenty of threads for that.   It's unfair to question their reasoning for...

I've posted my Meridian Prime Headphone Amp review in the Reviews section if anyone is curious.   http://www.head-fi.org/products/meridian-prime-headphone-amplifier/reviews/18160

  I hate when people say Meridian "House Sound". Meridian DAC/AMP sounds NOTHING like their DSP Speakers and do not implement their "hybrid volume" control that they have used for eons in their Preamps and DSP Speakers.   Your choice of headphones will dictate the bulk of the "House Sound"...

If you are using ASIO or WASAPI you "should" be bitperfect but not always. Some players might have say an Software EQ that you might want to defeat. Close doesn't mean physically close. Like if your USB DAC doesn't support ASIO or WASAPI Then one common thing to do is set computer volume to...

Sometimes BitPerferect isn't a huge difference (because your close) Sometimes BitPerfect is huge because you have things really messed up. So having bitperfect tells you that you have it setup right and your getting the most out of your hardware. To check you are bitperfect test with a DSD...

Thanks for the list. I did hear a difference and I talked about it my Meridian Prime Headphone Amp review. http://www.head-fi.org/products/meridian-prime-headphone-amplifier/reviews/18160