Can I swap my tube separates for your wife? No offence intended but I am jealous. You would certainly get an improvement over the Anthem with BAT or Sonic Frontier separates, but these days (assuming you do not use vinyl) a US$5,000 tube integrated, as DelveAudio suggests, is probably the best use of your money. But when you do, you should really try the Plinius 8150 (this is me being patriotic) - it does not have tubes, but has a tube-like warmth in the midrange that you may well like. Coupled with plenty of power and remote control it just might appeal. As to separates :- The Line 1 sounds nice with Amperex tubes in it (the stock Sovteks sound thin and zippy to me), would look nice together with your SFCD1, and can be gotten fairly readily for around US$1,300 second hand. But I was never too keen on SF power amps and would suggest looking at VTL or VAC.