A tweakable handclap patch. VCF cutoff sets the tone of the sound; decay knobs vary the length and burst of the noise tone and repeat speed of the claps, respectively.
Courtesy of 99sounds.org - free high quality sample providers - I mapped out this super kit on the pcmsynth; the first octave are some choice kicks. I didn't do any panning or waveform editing, because that's all your preference. These samples are free to use for commercial, and non-commercial purposes, and there are plenty more at 99 sounds.org