I own a Presonus Audiobox 1818VSL which worked just fine on an older
macbook running Arch Linux. I switched computers recently and the Presonus
gets a lot of xruns on this new computers. I saw some posts that suggest
that unit is not compatible with USB 3 ports.
On Wed, Aug 2, 2017 at 8:31 AM, Ralf Mardorf <ralf.mard...@alice-dsl.net>
> PS: You mentioned live usage. If you use a 19" rack it doesn't
> matter, if you chose a Presonus AudioBox 1818VSL or a Focusrite Scarlett
> 18i20 2nd Gen, but if you carry the device in a bag, it might be
> important, to be aware that the Presonus is smaller, but it has got an
> external power supply. The power supply is also small.
> However, the Presonus requires more power via USB, than the Focusrite,
> it's within the standard, but some portable computers might need an USB
> hub, if they should limit USB power to safe energy.
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