BiFilter2

Edit: I'm leaving parts of my original review which may be useful. Mainly, I'd like to say that I'm disappointed that BiFilter2 is apparently abandoned, so do NOT buy it if you want a filter from Tone2, get FilterBank instead, because it has newer and better filter algorithms (which means better sound than BiFilter2).

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Tone2 seriously upgraded BiFilter and released BiFilter2 which is a big improvement over the previous version, and I just had to get it.

One question may arise: why didn't I get Tone2's FilterBank2? The answer is simple, BiFilter2's big focus is on filtering and distortion features, just what I needed. (Edit: see top of review)

The sound is first of all very balanced! You actually get what you expect to get and the controls change the sound how you expect it to be changed, a quality that's seriously lacking in most filtering solutions. And the sound itself is lovely. This is the first software filtering solution I was actually satisfied with as far as sound goes.

The filter types are extensive. You can get very many kinds of filtering with it, and all sound quite lovely.

The distortion features are really unique and different from others I've heard, and can add a great character to the sound without ruining it. You can have it very subtle or extreme, and even the most extreme drive percentage is usable.

I would like it to have is an ADSR generator, but that probably won't happen.