[bitbang]

Depends largely on how it's implemented. There is a big difference between the quality of a well implemented convolution engine and a crappy biquad filter.

[l33tbro]

Where would something like Fabfilter fall in the scale? I imagine there's some pretty complex stuff going on under the hood.

[serverholic]

Fabfilter isn't really doing anything magical. Its default mode is a pretty normal EQ with phase shifting. Linear-phase mode is like any other linear-phase mode with the same drawbacks.

[l33tbro]

Probably the UI that made me think it was a Wonka creation. It's really not sonically much different to a stock EQ.

[nitrogen]

Note that not all biquad filters are crappy.