The R52 by metasonix and some other modules are unfortunately out of stock at the time in schneidersbuero, but they are very attraktive for interesting sounds apart from just noise. In addition to this Video on you tube showing the R52 in use there is a great interview with its inventor Eric Barbour in this months german synthesizer magazin. In addition with the review about the latest Release called Assblaster KV100 it is a reason to go for it.