for an eq I council the APP2055 because you can have the trasparency and the speed of the APP10 but, in eqs, the APP2055 is better than APP10 for noise. The APP99F has not the trasparency and speed of the APP2055 in eqs.
kr
Pier Paolo
I wanted to say that APP2055 is an ultra low noise opamp. It has 10 times less voltage noise than an OPA604, for example. APP2055 has the advantage to have an ultra low voltage noise of (1nV/rt hz at 1khz) and an ultra low current noise, so, in an eq, it give a noise so low that it's very hard for an IC and a discrete opamp to do better. Moreover, APP2055 has a wonderful stability at unity gain and an high slew rate so it's very indicated for active filters. APP10 gives very low noise in an gear such an eq but APP2055 does better. Moreover, for lowest gains I prefer the APP2055 to the APP10 and also to many opamps, because APP2055 gives an impressive low noise in this gear as the studer eq.
However, APP10 it's very indicated for trasformerless preamps and for input trasformer preamps with input trasformer ratio in range from 1:1 to 1:5, but works very well in line amplifiers, compressors, active summing amps , eqs, so APP10 works very well in the studer eq, but since you have asked to me a council I had give it to you.

kr
Pier Paolo