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Yeah that sounds like hum coming from the i20 wart. You can buy a universal power adapter from walmart for $15, probably much cheaper on amazon too.
If the Woo has a three pin, try a cheater plug. You may also try new interconnects to the i20. If you have shielded interconnect that is connected on both ends of the shield instead of just the source end that might also be causing a ground loop.
GIve it a shot and let us know :)
It should work I don't see why not. If you buy the i~20 from Amazon along with the extension cable, and should it not work, return it. It will cost you a few dollars in shipping is all. But I think it will.
Have you confirmed conclusively that your 24/96 files are not being downsampled before they reach the DAC? You would be the first person ever (but I would love it if you were!).
This is the elusive holy grail for the Pure i-20 that I've been pursuing for a year and half like Captain Ahab without confirmation: Can the iPhone (not the iPad, which already has been confirmed earlier in this thread) pass bit-perfect 24/96 audio to the i-20 DAC and/or external DAC without being downsampled? The only way to test this conclusively, I think, is to connect one of the external DACs that can display the resolution of the SPDIF signal it is receiving (for example a little indicator light next to "24/96" gets illuminated).
I think there's a chance this might work with third-party apps that can (at least in theory) decode 24/96 audio (such as 8player, which does do it on the iPad), but I haven't found any conclusive proof or examples in 18 months of searching. The problem, of course, is that unlike the iPad -- which has native support for decoding 24/96 ALAC files -- the iPhone officially supports only up to 24/48.
If anyone has an iPhone, i-20, and an external DAC that displays the resolution of the SPDIF signal it receives, please please please, do a service to humanity (or at least this human) and confirm whether you're able to get 24/96 files out of the iPhone that way. I think this would blow a lot of peoples' minds. Really.
This is the elusive holy grail for the Pure i-20 that I've been pursuing for a year and half like Captain Ahab without confirmation: Can the iPhone (not the iPad, which already has been confirmed earlier in this thread) pass bit-perfect 24/96 audio to the i-20 DAC and/or external DAC without being downsampled?
Unfortunately from everything I've read a iPod is incapable of playing anything higher than 16/44, its just not built to from Apple. I am not sure about Rockboxed units.
Not sure about very old iPods, but I can confirm that all iPhones and iPod Touches (dating back at least to the Touch 2G, if not the original) play 24/48 files natively with the stock player with no re-sampling. That doesn't mean the internal DAC is doing it justice, but all the bits are there and being processed.
Now my obsession is trying to make 24/96 squeak through the iPhone by using a third-party player app and a digital transport to bypass the iPhone's decoding software and DAC hardware altogether. I wish there were a guru I could go to for this kind of question. Preferably one who accepts Blue Shield.
My phones used to charge, now I get intermittent messages that "Charging is not supported for this device." It seems to have been with the last iOS update. Anyone have a similar experience, and if so know a workaround?