[LAU] USB2 Audio, PreSonus Audiobox 1818VSL -- was: Sound Devices USBPre2, UAC2 status

Hans Wilmers hanswil at notam02.no
Fri Jan 11 15:26:42 UTC 2013

On 01/04/2013 08:31 PM, shal at free.fr wrote:
> Hi,
> Some old posts exist about the UAC2 support for the Sound Devices USBPre2 but some problem remains.
> The current status is that this sound card is supported as a USB 1.1 card in high-speed mode.
> But this card is not seen as a Usb Audio Class 2 on  Linux. On Mac OS X this card is recognized as UAC2.

I have access to a PreSonus Audiobox 1818VSL today, and it gets 
instantly recognised with 18+18 channels. I tested the analog inputs and 
outputs, and these work fine with up to 24/96.

With lsusb, two configurations are shown, and both have 
bInterfaceProtocol = 32.

Output of dmesg and lsusb here:

/ Hans

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