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Does anyone know about symmetrical hazing bands that appear on new vinyl records - always only one side but symmetrical on opposite sides of the LP? Is this some kind of bleed through from the sleeves and is there any sonic impact? Thanks
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Well mofi sleeves have been well known to bleed through and leave marks on vinyl in the pas5. Personally I would not touch them.
Was the hazing there before you put them in mofi sleeves? -
I just received the LP last week from Acoustic Sounds - it's an AP Fantasy series release . Out of the sleeve brand new ....... does not appear to have affected the sound but......Comment
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I've received 4 or 5 45rpm blue notes with this on them. I've scrubbed with VPI and cleaned with my Audio Desk. Still there, but have never noticed any of these records having any sonic impact due to it. I was also told probably a sleeve issue.Originally posted by Boblaclune View PostSOURCE: VINYL - EAT C-Sharp with, EAT LPS power supply, My Sonic Lab Signature Gold
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While it hasn't affected me, there were several issues with the Mofi inners some time back...maybe a year or 2, but seems to have been resolved. Some complained about an oily residue and others a powdery substance.Originally posted by Metamatic View PostDynavector DV20x2L MC cartridge - Genesis G7.1f speakers - Marantz Reference PM-KI-Pearl Int. Amp. - Oracle Audio Paris MkV turntable - Various Morrow & Valab/King cablesComment
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I've tried to get to the bottom of this- every few years there is a "scare" circulating on the web about vinyl hazing and pvc leaching. Typically, though, the PVC outer jacket protectors that are most likely to cause these are not common- those very thick, library type soft jacket protectors that were in use in the aftermarket in the UK. Those are known to break down chemically over time, the plasticizer leaches, and it can migrate through the cardboard jacket and inner and affect the record.
However, people have found such marks on records that aren't packaged that way. I suspect it is an interaction with inner sleeve and the vinyl surface that is exacerbated by heat due to storage. In some instances, there were reports of white hazing on records pressed by RTI, but the RTI inners, which have their own issues--those pink ones, now clear, i think, tend to be sticky, don't in my experience leave the white haze. I have a Cicso AJA that has such marks but the sonics are not affected. (It was suggested that this was a pressing defect and that one of the Music Matters guys commented on this, but I haven't found the reference to that).
In cases where there is plasticizer leaching, it can affect sonics. There is a long thread on the Steve Hoffman board from a few years ago where there is lot's of anecdotal stuff about the issue. I'm not sure folks reached a consensus, other than that the marks can affect sonics, they don't usually "clean off" and that those heavy PVC outer jackets- similar to the ones Simply Vinyl used to use, are to be avoided. Most of the better inner sleeves, as Myles pointed out in one of his articles on aftermarket sleeves, are made from HDPE, which shouldn't suffer chemical breakdown.Comment
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Well that's definitely not it. I have seen it a few times...most notable for me on Steely Dan Aja pressed by Cisco. In fact I bought two different copies sealed and they had it. I use Mofi sleeves exclusively and they have done nothing like this to my LP's.Originally posted by Metamatic View PostComment
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