> Grrr, I am getting crazy with all my audio problems ! be patient, it's worth the wait :) . Loading snd_usb_audio is enough. If it's present, the UA-25 will work. I run jack (via qjackctl of course) with the following parameters: /usr/local/bin/jackd -R -P83 -p64 -dalsa -dhw:2 -r48000 -p256 -n3 The only thing you need to adjust is -d, maybe -dhw:1. BTW: alsaconf cannot configure your USB devices. IF you try the following and it doesn't work, please send the output of: cat /proc/asound/cards uname -a cat /proc/asound/version The audio section of /etc/modules.conf Best regards ce