I couldn't disagree more. If the O.P. is using CR1604 pres, they are seriously hurting the sound. Pres have improved a lot in 16 years. (The CR1604 was released in 1991.)
I used to use a CR1604 and wondered why all my old recordings sounded dull and lifeless. In the process of setting up to record drums, I bought an M-Audio FW1814 and a Peavey PV8.
It was like night and day. Everything sounded dramatically better even using the same mics and same interface in the same room. I haven't used the CR1604 for anything since. It sits on a shelf, a reminder to never again choose an older product merely because it costs less....