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Low Frequency Rumble Question

I have a Linn LP12/Ekos/van den hul black beauty analog front end. When I play records from my collection, it is very quiet.

I have recently purchased some reissues of famous RCA recordings from Classic Records (all classical music) that appear on Harry Pearson's "super disc" list. In playing some, but not all, of these records, there is a fairly loud, low frequency "rumble" type noise in some fairly lenghty passages. It never lasts the whole disc, but is very pronounced when it occurs, almost like a low frequency "feedback" sound. This does not occur on my other records.

Has anyone had such a problem with any of the Classic Records reissues?? Could it be a problem with my system? - arm/catridge resonance problem perhaps? Any ideas on why it does this on only a few records?? Thanks for any thoughts.
jackcob

Showing 1 response by pls1

pls1
432 posts
 
On the CSO Reiner disks, it is the Chicago Elevated trains fondly known as the "L" going around the Loop tracks. The tracks are right behind Orchestra Hall. There are other random low frequency noises that the Ampex recorders could record but the engineers couldn't hear on the Altec monitors due to their low frequency cut-off. These are on the CD remasters also. I own several vinyl and CD incarnations and low frequency noises are a regular feature.

Solti was a real podium stomper (I saw him live with the CSO numerous times) and you can hear this on many Decca recordings.
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