Ha, yes, we're actually using the mini Maggies as one of the speakers in development. Though you better have a lot of desk space!
One of the nice things about the microprocessor control is that we're also using it to monitor all current and DC conditions, so it's actually setting the quiescent current and managing DC, as well as monitoring for faults--so there's no need for a DC servo at all. So, DC coupled all the way through, no servo, and no worries about drift.
Still running a few versions of output devices, one depletion mode, one lateral, one vertical...decisions...
Edited by Jason Stoddard - 6/22/13 at 7:11am