shamrocks Posted July 24, 2014 Share Posted July 24, 2014 ive done some google and other forum searching, but just checking here to see if anyone has a suggestion or correction. project debut carbon with 2m-r stock cartridge marantz pm5004 definitive tech bp-8 floor speakers TT is grounded appropriately. at louder volumes i hear an audible hum between tracks, sometimes bleeding over into the quieter songs. really only annoying at louder volumes but i know its there at softer volumes. is this just a function of not having a separate power supply? i dont hear anything when the needle is not down, so its not like its always humming, suggesting to me that its not the connections, amp or speakers...i plan to upgrade the TT in the future so would like to buy a component that would transition well. any suggestions? Quote Link to comment Share on other sites More sharing options...
circuit bored records Posted July 24, 2014 Share Posted July 24, 2014 Check and make sure the ledes (4 cables that connect to the cartridge coming out of the tonearm) are secured well and are not touching each other near the cartridge. Quote Link to comment Share on other sites More sharing options...
bossdj26 Posted July 24, 2014 Share Posted July 24, 2014 it's more than likely the dang motor hum Quote Link to comment Share on other sites More sharing options...
tonyfranciosa Posted July 24, 2014 Share Posted July 24, 2014 silly question but do you have it near a TV? our living room set is near a plasma TV on the wall and I get a hum/interference through the receiver if I leave the TV on while playing records (don't ask why I do it...) Quote Link to comment Share on other sites More sharing options...
shamrocks Posted July 24, 2014 Author Share Posted July 24, 2014 no its about one foot from the receiver and one foot from the right speaker, on a stable expedit on its side Quote Link to comment Share on other sites More sharing options...
shamrocks Posted July 24, 2014 Author Share Posted July 24, 2014 it's more than likely the dang motor hum thats kind of what i figured, ill check the wires to the cartridge Quote Link to comment Share on other sites More sharing options...
xxmartinxx Posted July 26, 2014 Share Posted July 26, 2014 Is this what your power connector looks like? Only two blades? This means that it's not grounded, which means it's possible you have a grounding loop between them and your stereo. Assuming this is accurate, try turning the plug 180 degrees in the power outlet. That may fix your problem. Quote Link to comment Share on other sites More sharing options...
shamrocks Posted July 26, 2014 Author Share Posted July 26, 2014 i have a grounded plug in the wall...if that were the case wouldnt you expect to hear hum all the time? Quote Link to comment Share on other sites More sharing options...
xxmartinxx Posted July 26, 2014 Share Posted July 26, 2014 I missed the part about it only happening when the stylus was on a record. When did this issue start? How old is the turntable? Quote Link to comment Share on other sites More sharing options...
shamrocks Posted July 26, 2014 Author Share Posted July 26, 2014 its new, everything is new. it really is only noticeable at loud volumes and it may just be a function of the needle being down at loud volume (i.e. not something that is correctable on my setup)...like the sound of vinyl on a stylus...i dont know Quote Link to comment Share on other sites More sharing options...
allenh Posted July 27, 2014 Share Posted July 27, 2014 It does sound like motor hum being picked up to me Quote Link to comment Share on other sites More sharing options...
xxmartinxx Posted July 27, 2014 Share Posted July 27, 2014 I had this happen to me once. I had to re-grease the bearing on my platter and lube the motor. This was on my VPI Scout, and I'm not sure if this is possible to do on a Pro-Ject turntable, but I'd have to imagine something can be done. Quote Link to comment Share on other sites More sharing options...
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