Hello!
Give a guy a break! Just kidding....kinda..... The TAP took well over a year to complete and we are just getting going with it. I would not expect any changes for at least a year - and even then I can't think of just what we'd change or add to the design. The basic transformer wind has not changed for quite a few years now - we just don't know what we'd do right now to improve it and a LOT of work went into this latest rev's design. I am sure something will come up eventually but I tried hard to incorporate all the 'wants' that just could not be pulled off with the older pre-amp designs - things like balance control via remote, lossless phase invert via remote, more steps, etc...
Thansk!
John