We re-pitched the Bass Drum through old skool samplers like the SP 1200 and MPC60, to get massive, tuned kick drums: What's New: So, we multi-sampled our 808 cleanly through our API console, and also dirtied it up with a slew of hardware saturators, EQs, filters and compressors (no plugin processing whatsoever). Over the years, 3 different 808s have been sampled to create the 808 From Mars, but our most recent unit is far and away the best sounding yet, and for this reason (and the fact we have better gear and more experience than ever) we've decided to completely re-sample it.
The toms can sound like a 606 if the noise parameters are messed with, and the bass drum can range from a low G (if you're lucky) to an A#. This is due not only to its 100% analog nature, but because of the internal parameters that, with even the slightest tweak, can completely alter the sound. I've used many 808s over the years and it's true that each has its own sound.