Seems that folks are all over the board when it comes to the quality of the on-board M10000 audio. I will share my first-hand experience for those who have yet to make the on-board audio decision.

Now that I have my system fully integrated and functional, I must say that I'm not too happy with the audio quality I'm getting from the M10000. I'm using the onboard 5.1 (ignoring the center channel) to my amp, and the bass that the sub channel is putting out is pretty weak. I'm talking about the frequencies below 100hz or so. I have a single 12 in my trunk. Compared to the M10000, the stock 'business radio' unit (which was already of marginal quality) I had in before was putting out a richer signal. The M10000 just sounds a bit flat.

Have any of you been able to achieve decent audio quality? Maybe with an external usb sound card? I'm talking about a quality approaching that of a top-of-the-line pioneer or comparable system.