Noisy Chiller?

[fulcrum]

Yesterday I purchased an aqua-chill 1/4 chiller and I have to say its noisy. It seems to be chilling fine, but this claim of quiet operation is a farce.
My quesiton is, is any chiller actually quiet and is it worth replacing the one I have, or are they all noisy?
JBJ Arctica claims to be the quietest around.....has anyone heard the two side by side to let me know if I need to return the Aqua-chill?
Also, if anyone has any experience with Aqua-chill good or bad please chime in.

 

[scsinet]

I can tell you this about JBJ...
My reef tank sits about 4 feet behind my recliner (where I spend most of my time). I have a JBJ Artica on my tank. I usually can't tell whether it's on or off, over the normal water movement and return pump, which is an Iwaki (and we all know how quiet they are).
In fact, the main amount of noise you DO hear is refrigerant hissing through the lines, which you will have no matter what kind of refrigerant based chiller you get. You cannot hear fans or compressor noises.
I've NEVER heard a quieter chiller.