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Hi,Since Shure V15 V XMR is discontinued now, how can I continue to enjoy its sound in the years to come?
Buying as many new replacement styli as possible would be great, but what about cantilever rubber suspension aging?
I have few questions and need precise and specific answers :-)
1.) Does anybody know how sensitive Shure V15 V stylus is in this aspect?
2.) How long can it be stored unused.
3.) What causes suspension aging?
4.) Can aging be prevented or postponed? Let's say, keeping stylus in an airtitght container in a refrigerator?
Or even vacuum sucking the air from the container? I know of some kitchen appliance that can do this, it's called VacSy.Thanks,
Aleksandar
Follow Ups:
I used a seal-a-meal and baggies I got at a thrift for a couple of bucks to seal vintage automobile parts, rubber and metal. I still have some of these sealed parts, no signs of corrosion or rubber aging.Just a thought!
as a way to displace the oxygen in any airtight container. It is a combo of nitrogen and argon gas which is heavier than air. It is available at good woodworking stores for about $10 a can. As both gases are inert, it shouldn't react with the suspension of your cartridge.
Thanks for the info. I just vacuumed packed (heated canning jar method) three premium ADC styluses (XLM Mk2, Super XLM Mk2 and ZLM). Hope they will last.
When you go to the great beyond be sure to have those styli cryogenically suspended along with you so you can enjoy them
when you and those styli are thawed out ;-)
What exactly is heated canning jar method?
Is there any danger in it, like melting plastic parts of the stylus assembly?
Simply place the mason jar at low heat in the oven for about 15 minutes. The mason jar should be warm enough to be removed by your bare hands, then place stylus (in jewel cases) into jar and seal tight with a lid. After a few minutes you will notice that the bubble of the lid will turn inward thus creating a vacuum. Just ask anyone who has preserved jams or jellies, this method works and should perserve you precious stylus for years to come.
I would protect it from physical damage, oxygen, & light. Wrap it in something opaque and soft. Keep it in an atmospere of 100% nitrogen or helium (i.e. an inert gas). Oxygen is corrosive and UV will age most rubbery compounds.
simply put them in a resealable baggie in a cool dark place, sock drwer etc. they'li outlast you for certain, Shure suspensions at least the V15's, are extremely long lived even on the table.
BTW You'll still be able to get a new Shure replacement for the next 4 or 5 years perhap's longer, and there are replacement styli mfg. a couple of which are arguably a better cut and polish.There are so many V15xMR there will be a serious market for a VERY
long time.
Use ageless oxygen absorber from Mitsubishi Gas Chemical.Just put the cart in an airtight container, preferably a glass jar with a metal lid, and pop in an ageless sachet with a rating as large as the volume of the jar. The reactive iron oxide absorbs all the oxygen in a few minutes, voila no oxidative aging.
Non est ars quae ad effectum casu venit - Seneca.
"That which achieves its effect by chance is not art"Mark Kelly
keep it in an air tight container (jar) to shield it from ozone.
"Man is the only animal that blushes - or needs to" Mark Twain
I have a 15-year-old Ultra 500 and the original stylus assembly was still functional this year when I bought a new VN5MR stylus just to get the Micro Ridge stylus. I'm keeping the original as a backup.
HenryNecessity is a mother . . .
If you require padding use acid free paper.Store the cartridge separate from the packing materials/instructions as regular paper/plastic give off fumes over time.
I'd not use a refrigerator due to wide temperature swings. Low cabinets in ground floor homes are usually fairly constant, temperature wise.
I store special rubber parts in a hand folded box made from acid free paper, but glass is probably better over the long haul.
"1.) Does anybody know how sensitive Shure V15 V stylus is in this aspect?"
Shure cartridges are subject to degradation with age, like all cartridges. IME a Shure holds up longer than a Grado or an AT.
"2.) How long can it be stored unused."Forever I suppose. But Shure has stated that 5 years or so is OK.
"3.) What causes suspension aging?"
The suspension reacts to the atmosphere around it, hardening with time and exposure. Ozone is probably the worst, but any exposure to hydrocarbon vapors is a bad thing also.
"4.) Can aging be prevented or postponed? Let's say, keeping stylus in an airtight container in a refrigerator?
Or even vacuum sucking the air from the container? I know of some kitchen appliance that can do this, it's called VacSy."I personally have a brand new in the box Shure VN5xMR stylus vacuum packed with a kitchen appliance called a Food Saver.
Shure has recommended that an airtight container will work. I just took it one step further.Hopefully in a few years (5 to 7) when I want to use that stylus it will still be factory fresh (fingers crossed).
Good luck
--
Alan Gallacher
Born to Tinker!
I think you should check with Shure about vacuum packaging. It just seems to me that vacuum packaging would ruin rubber, but I don't know this to be true. It will definitely ruin vinyl records as proven by vacuum hold-down platters that apply any more than about 1-psi vacuum.Best regards,
John Elison
JohnAny idea what the mechanism that reduces vinyl quality under vacuum is?
Non est ars quae ad effectum casu venit - Seneca.
"That which achieves its effect by chance is not art"Mark Kelly
The vinyl out-gasses. This causes noise. According to SOTA's specs, they use electronic-sensing, which limits LP clamping vacuum pressure to 3.0” Hg, +/- 0.2” Hg. I guess this is about 1.5-psi. So far I haven't noticed any problems with my vinyl. On the contrary, it sounds better than ever with vacuum hold-down.Best regards,
John Elison
When you lower the atmospheric pressure you also lower the boiling point of a substance. Were someone to subject a cartridge to a deep enough vacuum, they may run the chance of boiling out the oils and gases present within the rubber suspension, thus considerably shortening the life of the unit.I have a V15 myself, but IMHO, when they are gone, so be it, and I'll just find something else to use.
Jim
Audio Apprentice
Rubber, by its nature, continues to cure until it is hard. It seems to me that there should be a way to revitalize it. But how? Most chemical restorers swell the rubber to make it more pliable, but then it simply dries out again, only way more quickly. Is silicone the answer? Would a coating protect the suspension without affecting the performance enough to be noticed?
I did give that some thought also before I did it.The food saver gizmo, when hooked up to my AC manifold/gage set (I checked), only pulls about 2Hg of vacuum, which Subcoolman can verify, is not much in the way of a vacuum. I think it may be just slightly better than sucking the air out of the bag with my lungs (grin).
I figure it was a cheap-N-quick way to effectively seal the stylus assembly off from the atmosphere and maybe just a bit of insurance that I didn't seal it up in a pocket of ozone (another grin).
I guess I will find out in a few years eh?
--
Alan Gallacher
Born to Tinker!
I guess I'm a little surprised, considering some of these units are labelled as "dehydrators", are they not? Given that, I doubt whether a 2" vacuum is going to do anything to the rubber itself, except for maybe dry the surface a little. As such, I remove my apprehension.It should be interesting to see how they are affected after "a few years" storage. If I'm around ("Good Lord willing", as my Grandfather used to say), let me know how they turn out!
Jim
Audio Apprentice
I was a bit suprised also by the results.
Kinda lame I thought...
--
Alan Gallacher
Born to Tinker!
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