Not familiar with Blauberg, so couldn't say how they are. I've been using a Soler & Palau TD-Silent series for a while now, though, and I can attest to them being a nicely quiet, albeit pricey option.
This is why we are here bud. It's not just to grow and show, but to teach and learn. Post it your journal. I sure wish I did on my first grow, but I was embarrassed. I lost out on a great first grow, and just got an okay grow...I would like to do a grow journal, but this is my first grow and I don't want to embarrass myself when failure happens.