I really think you would need to look at the PDF of the spec sheet for the device, as what you describe is just not possible. I am not dissing you on this, it just sounds as if you just don't see how the DSP works - there is no "programmability" in the DSP - it is a complete subsytem including DACs and EQ in one, intended to reduce chip count by software processing in one chip.There is no capability for empeg to "re-program" the chip other than to set it up with a set of parameters (the way you would call a subroutine). The ability to switch the band centre selection between L/R and F/B is not part of the API of the chip itself; equally, given the limited processing capability of the chip and the number of output channels, the firmware designers of the chip have chosen specific modes of operation based on available resources, which are selectable, but not programmable - L/R, F/B switching not a pre-programmed API feature.

Do you want me to post the URL?

One of the few remaining Mk1 owners... #00015