[linux-audio-user] USB 1.1 soundcard
mchristoph.eckert at t-online.de
Sun Nov 14 17:55:56 EST 2004
> - It has 2 Mic-Ins with XLR and Phantompower all feed from
> the USB-bus, no extra powersupply.
Isn't phantom power 48Volts?
I wonder that the device can get 48V from the USB bus. One
device is allowed to get a maximum of 500mAmpere from the
USB is 5V. This means, the card has to convert 5V to 48V and
would certainly need more than 5V/500mAmp. Maybe the phantom
power is only available in conjunction with an external power
Just my 2 Cents.
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