hi, i been reviewing the Korg kaoss pad 2, the korg KM2 Kaoss pad mixer and the Pioneer EFX500... i'm looking foward to the sampling/looping mode, varieties of effects, effects in samples and scratching and so the korg Km2 is so far my best choice, coul you help me out giving me the especifications and differences between these equipments, and which is my best choice... thanx