Iāve been tempted by the roland, it just seems like a really simple way to mix sound sources in a musical way, but itās pretty pricey.
Iām surprised thereās not more love in this thread for the doepfer wasp filter, considering how many people have it in their rack. Cheap as chips, super versatile, and sounds great! I love mixing in a tiny bit of the high end with a very low pass filter.