bds3151
Retained
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Member Title
Newbie
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John, thanks for explaining this. The case does seem to heat quite a bit, even at lower voltages. After two days of operating fine, the sound dropouts have returned. I think there might be another issue with compatibility between something in the NUC/Iso/iDefender/iFi Purifier/DXIO Pro3z/Mojo chain and the Iso. When I remove the Iso and replace it with RUR, the dropouts go away. If I take the Iso to my office system which uses a NUC/Iso/iFi iPurifier2/Schiit EITR/Schiit Dac, the dropouts go away. I assumed it was a heat problem because the Iso was hot and the dropouts got further apart when I lowered the input voltage. Tough figuring this one out. I may just keep it in the office system.
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Alex, a few more things are in the chain and the Mojo has a separate power connection. There is a small DXIO PRO3Z DDC, iDefender and iFi iPurifier drawing some current but it still should be ok with a 1amp regulator, or so I thought. Regardless, it was getting hot to the touch at 8v (I believe it's thermal protection not overcurrent that's being triggered) and the dropouts were occurring only after warm up. I measured the current draw at 250 ma. Looking at the specs of the TPS, it's 1 amp with some restrictions. It needs a fairly large heat sink (a 6" square plate I think was specified). I don't think there is any attachment to the case on the Iso so I believe it's correct to say there is minimal or no sink. The ability to deliver current and stay within the operating range drops off quickly without a sink per a graph I found. I assume it's possible I just have a defective unit that can't deliver the power without tripping the protection. Alex, I am curious about how other Iso's would react to a 250 ma draw and dropping 3vdc. It takes a while to heat up, so mine takes maybe 30-40 min or more before it trips.
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I tried it with two, Modi multibit and a Mojo, both drop out. I also have a usb/spdif converter in the mix (DXIO Pro 3x). I also tried another NUC with Win10 that is rock solid with the same configuration so it looks like you are correct with the problem being the OS (Libreelec). I wonder though if it may be hardware related with the Libreelec NUC as it only has 3.0 usb ports. The Win 10 has a combination of 2.0/3.0 with the DAC being plugged into a 2.0 port.
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I tried it with two, Modi multibit and a Mojo, both drop out. I also have a usb/spdif converter in the mix (DXIO Pro 3x). I also tried another NUC with Win10 that is rock solid with the same configuration so it looks like you are correct with the problem being the OS (Libreelec). I wonder though if it may be hardware related with the Libreelec NUC as it only has 3.0 usb ports. The Win 10 has a combination of 2.0/3.0 with the DAC being plugged into a 2.0 port.
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When the IsoRegen is in the chain with Libreelec Kodi 17.6 in and Intel NUC, sound stops when I switch between Exodus and PSVue. It doesn't happen every time but very often. I can restore audio by dropping power, disconnecting and reconnecting the usb cable, or reinstalling my RUR in place of the Uptone. I have tried the ground switch and grounding the usb output to no avail. The Recovery is rock solid in place of the IsoRegen. Any ideas?
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for sale One (1) Jolida Glass FX tube DAC II
bds3151 replied to Paul R's topic in Buy & Sell Audio and Computer Components
Paul, I received the dac today and its working fine. Thanks. -
for sale One (1) Jolida Glass FX tube DAC II
bds3151 replied to Paul R's topic in Buy & Sell Audio and Computer Components
Ok - let me know the shipping costs and paypal address. -
for sale One (1) Jolida Glass FX tube DAC II
bds3151 replied to Paul R's topic in Buy & Sell Audio and Computer Components
If you still have this I'll take it for $200 via paypal.