I agree with you Werner, but I can't use the rear speakers with ALSA applications such as aplay : the option -D doesn't exist in aplay-0.52 and the applications from alsa-utils-0.9.0beta12 give the following error : audio open error ; sound protocole is not compatible. On top of that, I have read that some people use four speakers. Can you help me ? Thanks for all. Xavier
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