Thanks for that, I use the Ayre QB9 and am pretty happy with that.
Ron17, you'll need an awful lot of CDs to fill up four terabytes. I agree about ease of use by the way, I now have 2500 CDs loaded and it was really easy. It's quick and metadata is just there most of the time.
That 2500 has taken up 84% of my 1TB of memory, mostly on FLAC, a few WAV. I'm showing my poor ear now, but I really can not hear much difference between FLAC and WAV. I ripped some favourite albums on both and I struggle to hear a difference.
If you want to start with 1TB SSD, the company will up the memory at cost. no labour charge, at least again, in the UK. So you can always start with 1TB and add as you need it. Just send off your Zenith with the backup unit and it comes back already loaded up for you.