hotteg04 Posted March 15, 2011 Share Posted March 15, 2011 I got my iFi a few years ago and its been great for the most part. After seemless operation for a couple of years the subwoofer started making a slight hissing noise(sort of like a continuous strong wind). At first I thought nothing of it but it has become an incredibly loud popping, thumping, distortion. For the most part I only use the iFi as my computer speakers and leave the system on but at the lowest volume when not in use. I've tried resetting the sub by unplugging it for a while and disconnecting all of the speakers, lines, etc. and neither have helped the problem. Anybody have any clue why this is happening and what I can do to fix it? I assume that the warranty is now invalid because of how long I've had the system. Any help would be greatly appreciated. Thanks, - Justin Quote Link to comment Share on other sites More sharing options...
ifi123 Posted March 17, 2011 Share Posted March 17, 2011 try to open up the subwoofer and check for busted capacitors. Quote Link to comment Share on other sites More sharing options...
hotteg04 Posted March 17, 2011 Author Share Posted March 17, 2011 What would a busted capacitor look like? Sorry, but I'm almost completely oblivious to electronics... One of the capacitors has a bubbled or dome shape top while the others are flat. Would that mean it's no good? Quote Link to comment Share on other sites More sharing options...
ifi123 Posted March 18, 2011 Share Posted March 18, 2011 i am positive that particular (bubbled) capacitor need to be replaced. usually busted caps shows bulged tops or sides, indicating that it has leaked. the reason i said this is because i just replaced one of my capacitors to solve my crackling issue even though it didn't leak. so a leaked capacitor definitely make things worse. is it the capacitors in group (4 pieces) or the one on the right side alone? courtesy of dbert. 1 Quote Link to comment Share on other sites More sharing options...
hotteg04 Posted March 19, 2011 Author Share Posted March 19, 2011 It's the standalone on the right side. Quote Link to comment Share on other sites More sharing options...
ifi123 Posted March 20, 2011 Share Posted March 20, 2011 exactly same as mine. replace that one with 4700uF 25V capacitors. use reputable brand such as panasonic, rubycon, nichicon, elna, etc. if you're not good with DIY you can ask someone to do it since it's pretty straight forward. Quote Link to comment Share on other sites More sharing options...
hotteg04 Posted March 23, 2011 Author Share Posted March 23, 2011 I'm good with DIY if i know what i'm supposed to be doing. If I had a guide or a how to it'd be no sweat. Quote Link to comment Share on other sites More sharing options...
ifi123 Posted March 23, 2011 Share Posted March 23, 2011 all you have to do is desolder the leaking cap and solder the new one. do note the polarity before soldering the new one. Quote Link to comment Share on other sites More sharing options...
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