Question about Sony PS-LX250H Turntable

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Tremendous Rumble when using my new turntable

I'm trying to use a new Sony PS-LX250H turntable with my Sony FM         Stereo FM-AM receiver. It is Model STR-DE505,STR-DE405, STR-D450Z, or STR-D350Z. Because it is installed in a cabinet, I cannot remove it to find the specific model number. In attempting to play a record, I only get a very loud rumble. The turntable seems to be microphonic insamuch as touching it makes a sound through the speakers of my system. I see nothing in the owner's manual about connecting a ground between the amplifier and the turntable. Where should the ground be connected? As I understand it, the turntable has a built-in pre-amp. Can this be the problem? If it is, how do I bypass this built-in pre-amp? Please help.

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I have the same problem with my pioneer pl 510 .My technics is solid no microphonic noise when i touch the table ..yes both are grounded .. also when the bass is turned up i get this horble low end feed back ...nothing with my technics TT so its not an isolation thing or it being too close to the speakers .what is the problem ?? anyone with experience in older TT's might be able to help .As far as putting foam under the turntable that is complete ******** sorry .I know what this guy is talking about .

Posted on Nov 14, 2009

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Its more like your turntable needs to be isolated from surrounding interference? try putting foam or dense rubber under the feet and make sure its not anywhere near a speaker as this wil cause immense rumble problems? it may be your carridge on this new deck is way more sensitive than your previos set up and therefore needs isolation for the best results?

Posted on Oct 07, 2009


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