Quote Originally Posted by Ulrich Drolshagen
[...]Obviously the most sophisticated part is the ventilation. It is sucking the air right above the trays, an idea discussed some time ago in one of the threads in this forum. It's very quiet thanks to the silencer built into the duct and the ventilator running in a silencing box. [...]


I'm quite interested in the silencing aspects of your vent system. I presume the silencing box is just a simple, insulated box, right? Can you describe what the inline duct silencer is and/or provide a pointer to some information? I'd love to include maximum silencing in my vent system. The more ambient noise I can remove from my darkroom the better.