MOTUnation.com

I have a small studio --- I'm acoustic musician --- I have the HD1912 in a sturdy rack -- but the fan noise is still quite noticeable ----- any suggestions?

I just fixed three HD 192s by removing the fans then cutting squares of
1/2" foam rubber that are big enough to fit the fan into after you cut out the inside of the square. Make the cut slightly smaller than the fan so that it grips the fan well. I used tacky glue to stick the foam to the inside of the HD 192 side panel centering it around the exhaust port. Mount the fan inside the foam square and reconnect. Be careful of the capacitors which make it
difficult to remove the lower screws when first taking out the fan. When you're finished, the fan is only touching the foam and the units are nice and
quiet. Also, be careful when tightening the xlr screws as the connectors are nylon and the screws will strip it fairly easily. This mod would work for 1296s as well.

What mesaken said. I also lined the flat panels-top, bottom, & sides with dynamat. It made the 192s dead silent. Then, I could clearly hear the internal fan of the DM2000 console........

i bought a used HD192 from JRR shop in california... eric @ JRR told me the unit had been modified with a quieter fan.

you might want to email eric.. maybe he knows what was done to it.

my HD192 is very quiet.. i notice hardly any to no noise at all...

eric:
uncle.e@jrrshop.com

I took my 192 into the music store where I bought it and they replaced the fan with a quieter one --- AND he created felt washers from adhesive felt pads that you can easily get at the hardware store (with a hole punched thru)
Thanks for all the great ideas.

Just curious...doesn't modifying the HD192 void its warranty?

I would think so. But if the MODs were done by the retailer then I don't know.