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johnsonad

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  1. Leaving the computer and DAC on are not a problem. As long as they are running signal into a preamp, you will achieve burn in. I use freq sweeps with pink noise and leave it on 24/7 as you guessed. Every few days we fire up the system and listen to how it has changed. This is a pretty standard burn in method btw. It has been a while since I've posted on this. The BL was returned and the iDAC2 has been a great addition to the system. It is the best sounding iFi product in our system to date and at a much better price point. I'm thankful for the recommendations made on this string. If it wasn't for them, I may not have tried the iDAC2.
  2. Mine arrived yesterday after FedEx delays due to the weather. Right out of the ice cold box impressions are good and it has started a burn in cycle. I'll report back after 100 hours or so. Not sure how long this one needs to burn in. We noticed changes past 350 hours on the BL. At 500 hours it was smooth and sounds great.
  3. Thank you for your detailed description and comparison of the idac2 and micro. That was just what I needed. We are pretty happy with the BL but I went ahead and ordered an idac2 to compare against it. More to follow once it arrives.
  4. I'm not upsampling. The DAC is set at bit perfect and all files compared were 1411 AIFF PCM via a Mac Mini using J River 21 with the latest iFi driver.
  5. My Micro iDSD BL has 500 hours of burn in on it at this point and we did some A/B comparison with the Nano today in the home system. To keep it short, the difference was not small with a significant improvement with the BL over the Nano in all areas. The BL takes a long time to burn in and it doesn't seem to be complete even at 500 hours to my ears. Give it time and you will be rewarded. It's a keeper for us and easily better than the Aqua La Scala Mk II we demo'd in the same system recently. I'll ask the question a second time. For those of us with a single ended only system, is the BL as good as it is going to get with iFi using this chip set or will the iDSD Pro still better it for SE use only?
  6. With less than 24 hours of burn in on the Micro BL we are already impressed by the sound compared to the iDSD Nano in the same home system. More detailed impressions once it has 100 or so hours on it. We are very happy with your implementation of the PCM1793 chip. For those of us with SE only systems and for home use, is this the best you will offer in this chip set?
  7. I'm presently using an iDSD Nano and a Micro Black will arrive tomorrow. Mine is used for home use only. The Nano to me is a much more portable solution and it has a USB B connection. Your logic for the Micro USB connector doesn't follow your product line or I missed this in the fine print. I had to find a cheap A to A cable on Amazon. It's easier to find a nice B to C vs the A to A cable. In the least it would be nice if your company offered a high quaility A to A cable. It's your product and you would have the market nearly cornered on a high quaility A to A cable. I probably won't purchase your large home unit but I do enjoy the Nano. It beat out the Aqua La Scala Mk II in our system last month. We like your house sound and it works well in our system so moving up your product line is logical to my wife and I. This USB a connector is the only hiccup we have had so far.
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