Wow.. great thread...
Have just spent a good half hour soaking it all in..
Loving the box on the first page, however as mentioned earlier.. covering the inside of the box.. I'd use 1" flat sponge..
Hanging the box with rubber bands etc would be the best regarding vibration
I think the egg shell wall covering imo would reduce reflection of the light back on to the plants, however i recon if you put some in each corner then that might help a bit as well...
You got to remember though, where is the sound actually coming from i.e fan and ballast.
Digital / Electronic ballasts are much quieter than the magnetic ones that most growers seam to have..
hay also have many benifits like.. less heat, cheaper to run, more lumens per watt and of course almost silent.
The Lumatek in paticular would be the best on the market.
Also, I think someone was talking about noise from their inlet... why not try making a few inlets.. then air wont have to "woosh" so much through the 1 inlet..
I have to read up about varible fans speeds as I think some fans are not sutible for this due to the ball bearings inside..
Like i say.. good thread...
