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Title: Not quiet at all.
Review: I initially bought the 1500 model. It was not quiet at all. So Zalman USA offered a replacement. They shipped me this NC 1000 silver model. The NC 1000 is not quiet either. Even at a distance of 1 meter, I can clearly hear the fan sound at the slowest fan speed setting. The noise is not high pitched metallic sound, but it is annoying. I cannot believe the decibel figure they advertise. I use this product in an ordinary studio, not in an anechoic chamber. The fans do not seem to be so quiet, and it seems that there is amplification of the fan noise at certain frequency range due to enclosure effect. I gave up returning it again, because I myself have to pay the return shipping cost again. If you want to buy this cooler, please check the "refund" (not replacement) condition of the seller.
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