Sorry to hijack the thread but Stello U3 arrived today. First impressions are very positive. I'll keep you updated.
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Human-Audio "Tabla Pico": LiFePO4 battery powered USB to coax async transport: Impressive!
- Thread starter leeperry
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leeperry
Galvanically isolated his brain
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Good to hear, the U3's got its own thread actually: www.head-fi.org/t/562732/
sridhar3
Headphoneus Supremus
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Nice write-up. Subscribed.
Audioexcels
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Quote:
LOL
))))
I love your theorizing about how things work.
I briefly tried the Hiface2, and I really hated it....trebles were very shrill and colored, unbearable. It's not really surprising when you realize that the Hiface2 is following the XMOS datasheet and has a SC4626A SMPS controller from Semtech which has a working freq of
2.5MHz(http://www.semtech.com/images/datasheet/sc4626.pdf) feeding the XMOS chip itself. We all know how colored SMPS sound like.
Yep, I've read about the U2.......I couldn't find any info about the ppm rating of the clocks, and I couldn't locate any review either. And it's USB powered anyway, that'll never be quite as clean as battery power![]()
LOL

I love your theorizing about how things work.
leeperry
Galvanically isolated his brain
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Quote:
The PurePower thingie wasn't available when I wrote this, and it comes at $1K IIRC. It's still partly USB powered BTW
What I said about the Hiface2 is very real, and I did try it on my own rig: http://www.imagebam.com/gallery/rp8pbnkmb99fg7ukarkowir6ty1i6od1/
I love your theorizing about how things work.
The PurePower thingie wasn't available when I wrote this, and it comes at $1K IIRC. It's still partly USB powered BTW

What I said about the Hiface2 is very real, and I did try it on my own rig: http://www.imagebam.com/gallery/rp8pbnkmb99fg7ukarkowir6ty1i6od1/
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