Jon Anderson Posted January 14, 2004 Share Posted January 14, 2004 I just got my turntable back from the local high end stereo shop with a newly installed Sumiko Blue Point moving coil cartridge. To my dismay I hear a faint very high pitched (12-16Khz?) "whine". Dealer said to expect a burn in period but this may be unacceptable. Has anyone experienced a similar whine with new cartridge? Thanks Quote Link to comment Share on other sites More sharing options...
formica Posted January 15, 2004 Share Posted January 15, 2004 Whether or not you cater the "burn in" crowd, I don't see how a high frequency whine could be normal. Perhaps some of the TT specialists could drop a line and clarify this? Rob Quote Link to comment Share on other sites More sharing options...
lynnm Posted January 15, 2004 Share Posted January 15, 2004 That sounds to be an oscillation problem. Disconnect the TT from the amp completely. Does the whine disappear ? If not the problem is in the amp. If so reconnect the TT being sure to connect the TT's ground properly. If the problem persists you might try a different cartridge. This problem will not be corrected by "break-in". Regardless of what the dealer says - If it is making noises there IS something amiss. Quote Link to comment Share on other sites More sharing options...
ZAKO Posted January 15, 2004 Share Posted January 15, 2004 Could be a high resonent frequency. these should be higher out of audible range. Contact sumico. or take cartrige back as being unacseptable. Break in is BOGUS. Quote Link to comment Share on other sites More sharing options...
Jon Anderson Posted January 15, 2004 Author Share Posted January 15, 2004 No whine with Pearl, one hour later a whine with the Blue Point. No other changes. NO whine with CD, FM or cassette. This is not a hardware issue per se rather it could be a gain issue as I mention below. An issue I did discuss with dealer. My Denon MC input is looking for .5mv or less. The MM input is 2.5mv or higher. The Blue Point's output is high for a MC cartridge at 2mv which is in the gray zone of my Denon input. Dealer reps pow-wowed and said to use MM input. Better to underdrive than overdriving the input was their thoughts. I hesitate to try MC mode with a 4x input. Quote Link to comment Share on other sites More sharing options...
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