VPI versus Ultrasonic cleaners


There have been rave reviews concerning ultrasonic record cleaners of all types.  But no ones has ever put the records under a microscope.  I am posting this because I have at 130x.

I purchased 2 of the same records, 1 ultrasonic cleaned and 1 not.  I examined them and the ultrasonic cleaned record while cleaner was not fully clean.  I contacted the seller and this was one of the drip dry cleaners.

I gave the ultrasonically record the following light cleaning (which did help it)
1 Docs miracle record misto sprayed and spread with a cotton makeup remover
2 Steam with distilled water
3 Vacuum with my VPI with a Delron tube (much better than the cheap clear one)
4 VPI record cleaner misto sprayed and spread with VPI brush
5 Steam with distilled water
6 Vacuum with my VPI
7 Steam with distilled water

The other record received the above process but repeating steps 1-3 and 6-7.  So twice the cleaning

I re-examined them under 130x and showed the results to a couple others who agreed that while clean the double VPI processes looked better.

Listening wise they sounded the same.  Listening was done on a SME20/3 with a Sumiko Palos presentation cartridge.   Any difference should have been picked up.

Shame I can't quickly post the pictures.  But in short if you have a good VPI process perhaps invest in a USB microscope and look at the record before buying another cleaner.  If you do get an ultrasonic cleaner I think it needs to be the drying kind.

ajcrocker1

Showing 1 response by whart

There are literally hundreds, if not thousands of threads on the Internet about different methods of cleaning records. Leaving aside some of the more extreme methods--using hair shampoo with conditioner to reduce static or scrubbing a record with melamine foam (yes, that one is out there), most methods that don’t do damage to the record or leave a residue are all probably within a range of "acceptable" to most users. For years, I used a basic VPI with a variety of fluids (there weren’t as many choices back in the ’80s) and got good results. In fact, I occasionally pull out a record I haven’t listened to in a couple decades, know that I had cleaned it at one point long ago given the inner sleeve used (those old Discwasher VRP sleeves) and they play fine.
When I first switched to an ultrasonic machine -the Audio Desk-- I was delighted by the convenience. I reduced the amount of manufacturer supplied fluid that I used, based on advice of some early adopters, and didn’t have much of an issue.
But, in some cases, with older records that had been exposed to who knows what sorts of contaminants, a pass through the Audio Desk didn’t get rid of noise- at first I attributed it to groove damage, but in the case of a couple pretty valuable albums, I re-cleaned on the old VPI, using an enzyme fluid and rinse. After some work, those problem records achieved a high state of play. (This isn’t always the case- some records are damaged by prior kludgey turntable set-ups or other problems and heavy cleaning won’t resuscitate them).
This led me to play with a variety of techniques and methods. I typically combine conventional vacuum cleaning (using a point nozzle, like the Monks- no static) with ultrasonic. If I am really after the best results, I will vac dry, rather than blow dry the record after an ultrasonic wash.
But, so much is about method and good practices. I can still use the VPI machine with some Disc Doctor type applicators, an enzyme like AIVS No. 15 and pure water rinse and generally get great results.
On water purity, the folks at the Library of Congress told me during an interview that while they can’t vouch for purity of grocery store distilled, all they consider necessary is D/I water. I use grade 1 reagent water which is probably overkill and buy it in quantity from a lab supply house. The higher grades of water typically go through multiple processes to eliminate all sorts of potential contaminants, organic and inorganic.
My general reaction to the OP’s observations is that multiple cleanings, using different methods, is going to produce better results than a single cleaning by one method.
As far as leaving surfactant residue on the record, I’m definitely of the "pure water" rinse school--and I do this not just for sonics-- I didn’t really hear any negative artifacts from the AD fluid (using a reduced amount), but because I also want to leave the record in as pristine a state as possible. I have no idea what chemical interaction might occur with a given cleaning fluid and a poly-lined sleeve over time. (I’m not focused on Audio Desk here, but any cleaning fluid). These records will outlive me. I’m just a care-taker.