The brilliant filter called ebbe & flut by Carsten Schippmann is available very cheap at the time from other stores.  It is some very last units of the older version1 one that are selling out now. The later version two with lower noise is the only one that we have and this is unfortunately still here to be sold for 1390 EUR normally. Towards this special situation we could reduce it down to 1249 EUR until the others will be sold out but thats it, sorry.