Qwobbler Posted August 4, 2016 Report Share Posted August 4, 2016 Hey, been using a 150mm Silenced Hyper Fan for only 1 year. It is now extreemly loud. It vibrates, makes a jet engine swirling noise and also a slight periodic grinding noise. We have 2.5m of acoustic duct either side of it plus a carbon filter. Would this be quieter? http://www.ebay.com.au/itm/131898208268?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT he has them in 150mm aswell without a speed controller. They are $229 RRP and he is selling due to last stock and new models. Any other suggestions on a Fan, preferably 150mm (will go upto 200mm if it means it will at least 50% quieter) Budget no more than $300 I really like the Blauberg http://www.ebay.com.au/itm/Blauberg-Sound-Insulated-Iso-Mix-2-Speed-Exhaust-Fan-150MM-353CFM-33dBA-/261942353068 But wow, double the price??? can we make a cheaper on just as quiet? Cheers Quote Link to comment Share on other sites More sharing options...
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