DQ65 is a free dynamic parametric equalizer VST plugin that has two gain controls per filter – one for high levels of input signal, other for low. Input signal can be scaled to utilize it’s range completely.
SX36 is a free VST Three-band stereo processor that separates audio into low, mid and high frequencies and lets you manipulate their stereo properties – width and panning or rotation. Both crossover points are adjusted with single knob. It has simple meters for each range showing correlation or panning.
CH4D is a free Classic chorus VST effect with four delay taps, two per L/R channel, and adjustable resonant cut filters.