Spectron Audio Musician II Class D Amp - anybody still using?

Hi All!  

I'm getting back into the 2 channel hobby after stepping away for several years.  I'm going to invest in and build a new 2 channel system with a budget of $15-20k.  I have an old Spectron 500 Watt Class D Amp.  Is anybody using one of these any longer?  I need to decide if I'll use my old Spectron or start from scratch with an integrated (Hegel 390 or eq Michi is what I'm considering). I believe the owners of Spectron Audio have either passed away or closed shop.  Btw, the speakers I'm planning to build around are Vienna Acoustics Beethoven Baby Grand Reference.

Thanks!