Yeah, I have tried a massive amount of combinations. It's always a give-and-take or elements of additive/removal depending on what combinations you use. At this point, I run a combination of Sonic Imagery 994Enh and Burson V6 Vivid in my Emotiva DAC and Rane stereo line mixer / preamp. I only run the Burson because I have several spots where the Sonic Imagery just won't fit and the V6 Vivid is the next best op amp (for resolution and transparency).
There are hardly any DACs out there that I know of which still use socketed op amps. Most will have the op amps soldered directly onto the board and many actually use the very tiny SMD op amps. The LKS is one that I know of that still used sockets. You could also look at an Asus Essence DAC (such as the Essence III), but I suspect the LKS is highly superior (but could be hard to find). There could be other DACs with sockets.
On another note, if you want to roll opamps, the Kinki Studio EX-M1 integrated amplifier has socketed op amps for the preamp/driver stages. These are ripe for some Burson V6 op amps and would make a really "awsome for the money" integrated with discrete input stage when upgraded with the Burson.
There are hardly any DACs out there that I know of which still use socketed op amps. Most will have the op amps soldered directly onto the board and many actually use the very tiny SMD op amps. The LKS is one that I know of that still used sockets. You could also look at an Asus Essence DAC (such as the Essence III), but I suspect the LKS is highly superior (but could be hard to find). There could be other DACs with sockets.
On another note, if you want to roll opamps, the Kinki Studio EX-M1 integrated amplifier has socketed op amps for the preamp/driver stages. These are ripe for some Burson V6 op amps and would make a really "awsome for the money" integrated with discrete input stage when upgraded with the Burson.

