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DRCA511

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  1. Thanks phatoldsun If you turn your preamp volume to very high and turn your mac on/off will you than hear thumps and pops as the USB voltage leaves the DAC? I believe that the dragon fly has an issue with Windows Vista but not windows 7 or windows 8 and according to many they are using it without an issue. One huge advantage of J river is that it has a very reliable internal volume feature which also has a a feature called volume protection to avoid an issue with the volume for any reason jumping to a ridiculous level. If you do not use internal volume on J river you can use system volume and still use these features so it is not really a concern to me. I was reading on the W4S Udac HD and it may also have the same feature as the dragonfly with Analogue volume controlled by the PC? I think? If so it would be wise if they actually went into detail how this works but there is no literature on it at all. i thought they would be interested in selling more DAC's - these things are aimed an computer audiophiles after all. I still have the concern about when you are connecting direct to a power amp and you power off or on these devices what effects they have. I was reading one review somewhere where a audiophile removed the preamp when testing the dragonfly and connected directly to his power amp and was blown away by how good it sounded. minimal devices in the line. Unless you need to switch between a number of analogue devices its time to remove the preamp in my opinion. If W4S UdacHD which has a class A quality analogue output is controlled by digital volume this device being twice the price but still reasonable is a better bet for me? Anyone's thoughts on this
  2. I am a newbie to this forum and first time post but have been reading it for years and was hoping I can get some advice about dragonfly that hasn't been mentioned yet. J river since version 15 was out. I use the internal volume and ditched the pre-amp along time ago as I search for minimalism now using J river 18. My current DAC is average but does the job in my system better than my previous 4 DAC's one being Belcanto's DAC 1.5 surprising. My issue is for years I am after a quality USB powered DAC (no power cable or power supply) preferred to hide it. Choices have been from HRT Streamers, W4S Udac, Arcam Rdac and Bladelius DAC which all had reasonable specs but was never tempted to change. The dragon fly has one above all of them and it is a analogue volume with a software control? (I hope I got this right) This technology intrigues me. It is a rare find. I was about to settle on W4S Udac-HD to suit my needs although it has overall better performance spec on paper higher resolution etc. It does not have this volume feature. I have never had an issue with J river internal volume so I am not sure what benefits I am gong to gain from this volume feature? My concern and question to this forum is this? I have no preamp so effectively I have direct connection to a power amplifier. - Never had a problem with this. Windows volume points to the TV sound and is on mute J river points to the DAC and is set to internal volume and volume protection These setting would preferrably change with the dragonfly When I hit the power button on my remote the system turns on "no noise, no thump, nothing at all - just dead silence" This is because the amplifier and the DAC are always on. If you go USB powered the dac will only power on at the point of turning on the PC have these USB Dac's taken into account not to output garbage on power up? so not blow my speakers? If the Dragonfly uses analogue volume what volume does it startup on? I would appreciate the feedback or any questions. Thanks
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