rme fireface ucx

The RME Fireface UCX is a professional interface with 18 i/o channel (8 analog, 2 mic preamps), MIDI, S/PDIF and ADAT. It has both Firewire (400) and USB 2.0 (class compliant). Their site actually lists Linux as a supported OS!

In CC (Class Compliant) mode the RME Fireface UCX works out of the box without having to use a patched kernel or flashing some firmware (tested in USB).

ALSA will see only one channel, but after installing QJackCtl from Ubuntu-Studio installer everything works.

Listed audio channels in Jack correspond to:

CH 1-8 ⇒ Analog 6.3mm Jack Out

CH 9 - 10 ⇒ Spdif

CH 11 -18 ⇒ Adat/Tosink

You might run some pre-start and post-start scripts from QJackCtl to get rid of some pulseaudio standard routings to the first 2 channels.

See here: https://wiki.archlinux.org/index.php/JACK_Audio_Connection_Kit

We figured out that custom routings are only loaded when QJackCtl is started from GUI rater than activated from command line only.

• Forum discussion
• LAU October 1, 2012