Hi Len, On Sun, 25 Dec 2016 06:46:13 -0800 (PST), Len Ovens wrote: >On Sun, 25 Dec 2016, Ralf Mardorf wrote: >Assuming that you are usng the external power supply already, a >powered USB hub should work provided no other USB devices are plugged >in to it. yes, the 1818's external power supply is used, when I try to connect to the iPad. >You may find another USB audio interface that does work without that, >but with fewer i/o or worse noise problems. As the 1818vsl manual says >the unit can not be bus powered, The only reason I can see for drawing >so much bus power is for digital/audio separation which is a good >thing. I don't care about the analog I/Os of the presonus that much. They could be useful, but what I want are ADAT I/Os. I want to be able to connect iPad virtual synth by ADAT (and MIDI), when using a Linux DAW. Perhaps this also could be done by USB without an audio interface at all, but ADAT I/Os allow to connect with any other kind of gear, from my ADA8000 to something much better than the ADA8000, just in case I should need analog I/Os. Apart from this, indeed, it doesn't harm to have a Linux compatible USB audio interface, with 8 analog I/Os, so if possible, I want to stay with the PreSonus. I'm even thinking of buying a second one, because of my RME's ADAT issues. I'll try to get a powered USB hub ASAP. Unfortunately you can't buy one in Germany during Christmas and I'm sure only one of my friends does know what a powered USB hub is, owns one and would be willing to borrow me one, however, usually we use our free time during Christmas, so I dislike to bother him and will wait until after Christmas, to buy one. Unfortunately this issue rains on my holidays parade :D. Regards, Ralf _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
