MRA : Myth or Menace?


New Vinyl : MRA : Myth or Menace?

This is an exercise to see how far I could get playing brand new LPs, UNCLEANED, before MRA toxicity became a problem.
I must forewarn you that for digital audio enthusiasts, the following notes will seem as productive as watching paint dry… ;^)

In an earlier A’Gon thread which lamented the number of warped examples of new vinyl on release I posted the beginnings of the experiment. Quote :

“Here's a heartening story for the OP : I often accumulate new LPs but don't play them with the intention of getting them cleaned first. Yesterday I took a chance and played one that had been stored, uncleaned from new since 2013. Opening it for the first time, it was "ruler flat", no discernible warps. Hole and label registration were very good. The LP played as if it had just been scrupulously cleaned. Noise floor was inky black. Transient peaks tracked perfectly and cleanly throughout the entire record. This 180g was a triumph of LP manufacture that harked back to the halcyon days of the 70s & 80s when no one had even heard of MRA and uncleaned LPs bought new still sound perfect today."

“Emboldened by my own experience (above) I've started playing new LPs without cleaning them. After warming up the stylus on a 2nd-hand LP, the next two that I tried were "For Your Pleasure" (Roxy Music), 1x180g LP, and "The Raven That Refused To Sing" (Steve Wilson), 2x180g LPs.
To my pleasant surprise all three of them gave the same result as above. Each had a nice glossy black patina with no staining or “marbling”.
(It’s possible that coffee coloured staining/marbling may be an indication that someone needs a new chemistry set and that the formula may be compromised in some way but I can’t be sure about this…) :^D

I paid particular attention to the quiet/silent passages on the Steve Wilson because it had a bit more dynamic contrast than the other album.
Even though I listen at levels of 85db or so - measured at a distance of 5-6m there were no clicks or pops just inky blackness. As a double-check I stepped into the near field during quiet sections and got the same result.
The run-ins and run-outs were also smooth and untroubled.”

After those listening experiences I sensed the beginning of a grand experiment to see how many new, uncleaned, LPs I could play while still obtaining such gratifying results before I crashed-and-burned on a severely MRA-riven one… ;^)

So, the experiment continued….
In addition to the ones previously posted (above), and as before, this is a description of their physical and behavioural properties for the purposes of checking where we are in terms of meeting acceptable standards of LP manufacture :

Norah Jones, “The Fall” (single album).
Anti-static poly lined sleeve supplied with enough room to slide the LP out unlike those that are paper only and so tight you end up destroying the sleeve to get the LP out!
Very slight spindle hole mis-registration. Again, not as bad as the HFN/RR test disc.
Disc was as flat and unwarped as you would have liked it to be.
In terms of surface noise this was silent throughout.
Run-in and track transitions were silent also.
The runout on Side A was silent despite having a piece of fluff caked on the end of the stylus!!
(I noticed this LP was one of those rare ones more inclined to become statically charged, despite the diligent application of a Zerostat)
Doesn’t get any better than that if you are looking for a result. SQ was excellent.
Another winner?!?!???

(Please note : for the next set of reviews none of them were static “chargers” i.e. the stylus was perfectly clean at the end of each side (not, perhaps, under a microscope but visibly clean when viewed with the naked eye – the stylus was cleaned, once per LP, btw..). There were also no signs of discolouration or blotchiness on any of the discs mentioned.)

Edwin Astley, “Randall & Hopkirk Deceased” (single album) sourced by Network-on-Air.
Quote : “Featuring new transfers from original analogue tape elements, mastering/vinyl cutting by Ray Staff (one of the best audio engineers in the world) and high quality pressing by the renowned Pallas pressing plant in Germany, this range of audiophile-level albums is presented on 180g virgin vinyl…”
Like the NJ, provided with an anti-static poly lined sleeve with plenty of room to reach in and grab the LP.
The manufacturers do seem to be getting their act together. Even the few that only have paper sleeves at least enjoy a decent sized one.
This was an album released to celebrate RSD but whenever I tried to get a copy in the shops I struck out.
I ended up ordering it on-line from the creators…
This was a terrific test of surface noise in fact it was a bit of a revelation. There were plenty of long silences on this collection of incidental orchestral music. (Rather like listening to a work such as Mussorgsky’s “Pictures at an Exhibition” only twice as long!)
Inky blackness prevailed during those silences. Track transitions and run-ins/runouts also silent. SQ superb. Slight 1960’s “colouration” to the recording – more so than you’d experience on e.g. John Barry Collections, but still the best rendition of this music I’ve ever heard (and I’ve got some BD recordings featuring it).
Again this disc sounded so good you’d think it had been cleaned. Excellent dynamics and recording depth.
If only BDs sounded like this, audience involvement would be off the scale!
So, a triumph! There are others available from Network. Given the quality of this offering I’m going to have to collect them all now… 
(Update : I’ve made a start and ordered a few already….)

Hawkwind, “Electric Tepee” (double album, red vinyl Limited Edition)
These played perfectly with a perfect noise floor (or at least as far as I could tell given that it was a hard-Rock album). Track transitions were silent and run-ins/outs also silent until the very end.
Nicely finished product. No rough edges or rags.
Textbook stuff! 
My only objection was that it, disappointingly, had been supplied with paper sleeves with circular cutouts and no poly liner 
They were loose enough to get the discs out easily so no problems.

The Enid, “Invicta” (double album)
The first LP needed the spindle hole to be reamed slightly (loose core) nothing too involved. Second one fitted ok.
The first LP was clearly “dished” even though it wasn’t easily visible. (The reason I know this is because I have a spirit level bolted to the bearing housing on my tonearm ;^)
It started off with a strongly “negative” VTA i.e. “tail down” then the arm progressed “downhill” towards the inner grooves where VTA levelled out.
The reverse situation applied to Side B. (I didn’t bother adjusting VTA to average it)
Apart from slight “dishing” there was a single pinch-warp on the first disc but not severe.
Basically it looked good – even to a perfectionist.
Grooves were not very deeply cut and the runouts were excessively long (1.5” typically). They could have used the available space better.
Perhaps attributable to the dishing, noise performance slightly less than perfect on occasions with both discs but commendable as it was low-level and wasn’t intrusive.
SQ was faultless otherwise.
Verdict : less than perfect (physically) but still excellent.

The Beach Boys “Pet Sounds” 180g single album.
No defects in drilling or labelling. Not warped in any way.
Poly lined sleeve plus detailed inner sleeve.
Very low-level noise only during the occasional track transition, no audible noise during the music itself.
SQ was first class. Very lifelike and alive. Sounded like it was recorded yesterday.
Excellent pressing.

Led Zeppelin “Led Zeppelin” 180g single album.
Needed the spindle hole to be reamed out. Again, not warped in any way.
Poly lined inner sleeve similar to the Goldring type.
Back to 100% inky black background silences with this one. Run ins completely silent as were the track transitions.
SQ beyond reproach. This album will leave you dazed & confused…

Based on these most recent experiences I’m inclined to buy MORE new vinyl rather than less.
I’d had one bad experience with MRA and this had put me off playing new vinyl – tending to save them until an opportunity to get them cleaned arose – but as you can see, some of these new albums have been different class while all have been eminently playable.

With no problematic issues after about 16 LPs (4 of them not yet described here) you can see the percentage failure rate is still zero. This gives a good percentage indication of success and I have to say the signs are good but the most important observation is that cleaning was not essential to get good results (especially in terms of surface noise & tracking on peaks)and that is what the experiment was really about. ;^)
This may not be "your" experience but if not we’re still interested in your comments if you've tried the experiment already ;^)

I still have large amounts of new vinyl still sealed in its packaging so I’ll keep going… but effectively the notes end here as I feel the exercise has been worthwhile ;^)
moonglum
Moonglum...sorry my comment about damage to a stylus was to be associated with the dust, dirt and paper fibers NOT fingerprints. I knew that I put that statement in the wrong place :-)

I totally agree with you...to each his own.
Dear Mo-fi,
You must remember that 70s & 80s were dominated by Linn's philosophy and they advocated using the stylus to clean records then brushing it off with stylus cleaner after it had collected! ;^)

I must confess to some scepticism about fingerprints causing extreme damage to a stylus though? Any fingerprint won't likely penetrate beyond the outermost groove surface and the domain of the stylus lies within the deeper part of the groove? Small bits of paper get deflected without even being noticed (although I think it's best to dust them off first). The acid test would be whether there is any accompanying sound of impact from the fingerprint(??).

By contrast, a carbon fibre brush when applied to the stylus will scare the proverbials out of you if the volume is even within 10db of your normal listening level, so if anything I'd be more concerned about the rigorous nature of the brush rather than any mild contaminants?

One of the great things about hifi is that we can celebrate our different approaches to each and every problem and it's always interesting to hear others experiences.
Kind regards,
..sounds like hukus pokus to me. I never clean my new records...even old ones (except if I discover peanut butter and jelly) on them. I run a Hunt brush over them before playing to remove dust, and am good to go. My records from 1970's have an occasional click or pop, but in a concert hall, someone is occasionally coughing or sneezing.
11-18-15: Moonglum
"Dear Mo-fi,
In the 60s, 70s & 80s it wasn't as fashionable to clean new LPs as it is now. The general attitude was, "What can be cleaner than a brand new LP?"
These days the average vinyl enthusiast is much more sophisticated and knows that there is more to this than meets the eye, or rather the ear..."

Dear Moonglum, I still believe so and never ever had problem or issues. I'm probably to dumb to fall onto various theories.
Moonglum...there can be much more on a new record than just MRA (mold release agent). Like dust, dirt and paper fibers from the inner sleeve. I just opened a new LP and found a fingerprint on it. Most places make the people who package LPs wear rubber gloves, but those get dirty. Not sure how often they replace them during a shift.

These can cause severe damage to a stylus if encountered.

I started collecting records in the early 70's and there were numerous ads for record cleaning devices. No, there weren't many RCMs, but record cleaning was very prominent back then.

I have massive LP collection and again, I'd rather be safe than sorry, but it's your system, so do whatever you think is right.
Dear Mo-fi,
In the 60s, 70s & 80s it wasn't as fashionable to clean new LPs as it is now. The general attitude was, "What can be cleaner than a brand new LP?"
These days the average vinyl enthusiast is much more sophisticated and knows that there is more to this than meets the eye, or rather the ear...

Cheers,
Hi Lowrider,
No I didn't inspect it with a magnifying glass only eyeballed it but I did clean it regularly enough.

There are those who maintain that MRA does not exist. I recall an old thread on another Forum which specifically mentions the addition of MRA to the vinyl formula. (Dated 1976). I'm just wondering what happened before 1976! ;^)

Over the years I've heard the occasional "bad disc" whose faults, I believe, could only be attributable to MRA. It may be that the material predominantly collects in the deepest grooves during highly modulated passages or the cartridge only noticeably objects to it when it tries to track the difficult peaks?

Since, in theory, MRA continues to be exuded by the vinyl for years after manufacture (assuming it really does exist), one wonders if cleaning is indeed a permanent solution...?
I'm glad your experiment worked for you. No way in hell I would ever let an uncleaned record touch any of my tables/arms/cartridges. YMMV.
Did you inspect the stylus after a few plays of the new LPs?
I wonder if there was any residue left in the grooves after being stamped.