2. analog
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Turntables thump when turning off?

Why?  I have used 4 different tables and three phono stages in 2 different systems and all of them produce a pretty loud thump when turning off especially, sometimes when turning on.  I have been muting the system each time I turn off as it seems a little much to be letting such a thump reach the speakers.  Is there a cure?  lift grounds?  arrange cables? I was getting a pretty decent hum at times and I've noticed careful routing of the cable to the phono preamp makes a huge difference in this.  

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ejlif's avatar
ejlif OP
1,366 posts
 

The thump is loud, very loud if it's at the full volume I would play an LP at.  I guess you guys are saying it's normal and I just have to live with.  It's there no matter the table or phono stage and even does basically the same thing in a whole different system.  It's a VPI classic 3 and Rega RP8.  I had Nottinghams before and those don't turn off ever so maybe that is why I didn't ever notice until now.  You have to stop the VPI motor after every LP side since it uses the center weight and periphery ring.  The RP8 I can just snag the LP off without stopping it.  

ejlif's avatar
ejlif OP
1,366 posts
 

You know what the Doctor says to patient?

It hurts when I do "x" Doctor-then don't do "x"

 

Yeah no sheet.  I was looking for a solution to having to turn down the volume or mute each time I change the record.  Just pointing out that if left at normal volume that I play a record at the thump is dang loud.  Obviously I don't do that and I turn it down.  

Sounds like plenty of suggestions.  I was thinking it's probably not a fault of one of the tables.  I have a VPI classic 3, a Rega RP 8 that is brand new and an old Dunlop Systemdek IIX and they all do it and with two different phono preamps and various amps and preamps.  I'll try some of the more careful wire routing see if that helps.  Thanks for the many useful suggestions.  

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