You do have a very nice Analog rig. I was always a pro analog guy till 2011 when I went digital.
My only thought is that you might try a r2r DAC with a tube output stage. You could use your 6005 as a transport. Possible upgrade the transport later should you find the DAC is taking you in the right direction.
I own a Audio Mirror Tubadour III DAC, paring it with a CXC transport. The AM is r2r and has a tube output stage. It did much to improve the sonic qualities you are looking for. Can't say how it would compete against analog in your system.
I
My only thought is that you might try a r2r DAC with a tube output stage. You could use your 6005 as a transport. Possible upgrade the transport later should you find the DAC is taking you in the right direction.
I own a Audio Mirror Tubadour III DAC, paring it with a CXC transport. The AM is r2r and has a tube output stage. It did much to improve the sonic qualities you are looking for. Can't say how it would compete against analog in your system.
I