the full suite includes 7 effects, 6 listed here and one surprise bonus, as an homage to crackerjack, sugary breakfast cereals and other crassly commercial products utilising such glib marketing tactics (but not those tasteful german chocolate eggs). these effects were developed for different reasons, as discussed below, and happened to be what engaged my sensibility.
mod filter
hardly my work.. chris kerry's ASM biquad implementation. i've used this plugin for years, thought i'd put a gui on it and include it.
modulation delay
some people say this is kinda cool.. i wanted a hifi, ~gourmet modulating delay. this includes hermite interpolation and 2x oversampling options (which aren't light on cpu). apart from flanging and chorusing, this facilitates cross-channel feedback which may be fairly unique in low-end effects. if you like noise and experimental textures you'll probably like this one. delay can be driven into self-oscillation and used as a flexible tone generator.
multiq
robert bristow-johnson peak and shelf filters with a 2x oversampling option. other people do free multiband eqs (such as rs-met, sans the oversampling) that use less cpu, so the only appeal here is possibly aesthetic. unless you're a narrow Q fan.
static delay
after a request to combine filtered stereo delay and pingpong delays in one plugin i made this. what is good about it is the cross delay function, which smoothly blends from stereo delays to pingpong (pending you set the input balance accordingly). hermite interpolation, biquad filters, designed for fixed time delays.
for those of you with bright monitor settings who can't see the other version of the gui..
xoxos phaser
a phaser.. maybe well-featured but considering the wide selection of free phasers, several of which offer better cpu performance, it's really just a pretty face. cpu options range from competitive to the aptly labeled OMG (exact modulation, filter coeffs and 2x oversampling, for a good chunk of your cpu).
xoxos reverb
this is a lowspec algorithmic reverb (allpass ring) intended for intermediate usage.. when better quality than some of the other low cpu free models is desired but Ambience VST is cpu overkill.. the optimised model is mono in, stereo out. a stereo mode is available but the mono mode (uses about 1.6% of my 1.6g processor, 1/5th of ambience) is the sweet spot. like most widely parameterised algorithmic reverbs, it can be made to sound quite good or quite bad due to the response to different frequency content, so if you're looking for a low-cpu reverb, try the presets, and read the documentation to get the best use out of it
the additional vst is a cheap, low-fi knockoff of a currently popular effect.
the pack is at an introductory price of $10, each demo version is restricted by a few 'frozen' parameters (presets retain variable settings).
http://www.xoxos.net/vst/DEMOeffects2010.zip
http://www.xoxos.net
*edit* these vst use the synthedit sdk and (with one exception) were developed with borland fclt c++
