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Posts by ClieOS

 Gold case is the limited run (within the limited run of E12DIY no less), so it perfectly reasonable it will be the first to run out. Where you are has nothing to do with it.  No, it doesn't come to me as having more bass than OPA627. Bass quantity on OPA827 is roughly the same as AD8599. In fact, the two shares a large portion of their sound signature. I'll say OPA827 is a bit more forwarded while AD8599 sounds a bit more laidback. The most noticing part is the OPA827 has...
 No. OPA827 only comes in SOIC and MSOP (which is even smaller than SOIC) packaging. It is a single channel opamp so you must get the SOIC version and mount it on the adapter.  It is not an bassy opamp, as far as my listening go. I'll probably categorize it as being more of a clean and clear type of opamp with a slightly sweeter mid range, quite detail but at the same time not edgy. Kind of like a smoother AD8620 or AD797, with a bigger soundstage. Overall I'll say it is...
 No it doesn't, unless the charger is extremely poorly made. Most half decent USB charger should have internal limiter so you can't over-draw its max current output. Thus why it is wise to avoid random USB charger in the dollar store.
I assume X3 just draws as much current as the source can supply. IIRC, there is a chip inside that controls the current uptake and will switch automatically to high current mode when it detects a high current supply, probably by the common method of resistor shorting the D+ and D-.
Just want to add another opamp to my 'must try' recommendation - OPA827. It is detail, airy with a really good soundstage, but not edgy or grainy in anyway, and pair very well with BUF634 and HA-5002. I think it can rival OPA627 or MUSES02 without a problem.
 Don't hold your breath
There are a lot of USB charger out there with false rating btw, especially those from lesser known brands. So I won't be too surprised if your 2A charger isn't actually up to par.
AW Audio on eBay will let you choose different resistor value if you ask him:
 I assume you mean E11?
 FiiO E12DIY.
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