Use Wiim Ultra's USB out and USB in at the same time?

Wosi

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Aug 12, 2024
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I'm thinking about getting a Wiim Ultra. For the beginning I want to connect to my AIYIMA T9 Pro through USB. Music will be mostly streamed from USB drive.

As far as I know there is only one USB port on the Wiim Ultra. Is it possible to connect to a USB hub such that the Ultra will play music from USB drive while streaming data via USB out to the T9 pro?
 
A 2.5" hard drive will not work with the unpowered USB hub alone (only a USB stick). But if a 5v power supply can be attached to it (preferably with low noise ..e.g. iFi power2), then it is universal.
usb.jpg
 
Don't bother with expensive power supplies. It doesn't matter, a good phone charger is fine.
Well, I don't agree with that.. ;) It remained after the sale of the Wiim ProPlus... the cheap 5v power supply wasn't ideal there either.. (I think it's okay if it doesn't pollute the USB with noise--towards the DAC)
 
Well, I don't agree with that.. ;) It remained after the sale of the Wiim ProPlus... the cheap 5v power supply wasn't ideal there either.. (I think it's okay if it doesn't pollute the USB with noise--towards the DAC)
This is the constant discussion.

For the hub, the power is for the attached devices only and not for the signal.

A very bad power supply can affect the analog in/out (ground loop) and may also make so much noise on the hub that data packages are lost due to error detection on the receiver. To be audible you shall however have a lot of errors and then it will be noise in the audio, not a change of the sound (or sound stage, as some think).
 
I bought a cheap Y cable on Amazon and it worked great and was less messy than a full hub...
 
I’m using a USB hub with no issues. USB out to a Denafrips Pontus 15th DAC. USB in for a Western Digital 2TB My Passport hard drive. No need for any type of external power supply. Not messy at all. Works and sounds great!
 
The maximum current the WiiM Ultra can supply to external USB device is specified as 1750 mA. Anything above that limit (combined) is.potentially risky. This includes short time events like disk spin-up.

So, it all depends on the specific hardware you use. Some HDDs may not work without external power supply, others may. :)
 
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