Thats cool, can you sample at a higher frequency though without getting some different expensive chip? say, 96khz to give better clairity than just 40k? I know thats not much at all but the less THD you have stacking up before it gets converted to sound waves the better. Does it sound fairly good after this processing has been done seeing as it was homebuilt? Ever thought of doubling the memory, and adding a 2nd channel and then throwing some DSP chips in the mix and creating your own effects processers?