@tzh21y Yes - it IS still possible to upgrade your Merlins to the last/latest Black Magic version. I have been doing Black Magic upgrades on VSM and TSM speakers exactly to Bobby's (Merlin's) specs (down the the solders used and the torque settings for the screws) for a couple years now for VSM and TSM owners.
NOTE THAT There are a finite amount of Black Magic upgrades left that I can perform. UpTone who made the capacitors that are the core of the Black Magic upgrade, has left the capacitor making business early this year (for a number of reasons, including materials costs). I bought out all the caps they had left that I could use (i.e of the values needed for TSM and VSM crossovers) to do upgrades, but that was only enough parts to do about 14 pairs of speakers. I have enough left to do only 8 more pairs at this moment. Once those parts are gone - that will be it for exact Merlin spec Black Magic speaker upgrades.
If demand is there, I will look into finding a good (better I would hope) substitute, but then that would not be Bobby's spec but what I would envision he would be happy with sound wise. However, given what I have been told about the increasing material costs that go into making these types of capacitors (which use specialized films from Europe which are wound to make the caps), anything I will likely wind up finding as good or better will be a good deal more expensive than what the Uptone caps cost which will drive up the upgrade costs (maybe too much for it to be worth doing if the increase is significant and the improvement is not as significant).
