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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 2 responses by jackcob

jackcob OP
37 posts
 
Thanks for the responses. I checked last night and I can hear the "rumble" through headphones with no sound coming through the speakers. So it seems it must be coming either from the recordings or from some problem with the arm/cartridge combo (ekos/vdh black beauty).

The "rumble" sound is so pronounced, it is hard to believe that it is on the discs themselves. Could it be a "resonance" problem, whatever that means?
jackcob OP
37 posts
 
Rcprince -- Thanks for your response. The rumble also appears on some of the RCA Reiner Chicago SO records. I don't think those were made in England.

I also noticed an interesting fact. I have the Classic Records 45 rpm "comparison" LP of Shostakovich's first symphony with Martionon conducting the London PO. The rumble appears in various places on the 33 rpm disc, but NOT on the 45 rpm discs. Go figure???

I'm just worried that there is some weird incompatibility between my cartridge/arm. But I suppose that if so it would show up in many more places.

Thanks again
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