I finally got a record cleaning machine. First thoughts.


As I previously mentioned, I was given a load of 78 RPM records which are filthy mandating a cleaning device if I want to play them. After months studying the situation I opted to get a Clearaudio Double Matrix Pro Sonic. A lightly used one came up so I jumped on it. Why this machine and not an ultrasonic cleaner? Several reasons. It uses fresh fluid for each cleaning and discards the waste. It sucks everything off the record. Even distilled water will leave a residue if it is dried by an evaporative method. It uses mechanical scrubbing which my instinct prefers over ultrasound. There is an ongoing argument over what ultrasound will do to shellac. The Clearaudio has a reputation for being very well made and it is.

As for it's performance the Double Matrix is fast, quiet and very effective. The fact that it does not drip fluid all over the place is amazing. Records come off spotless and bone dry. You can play them right off the machine. You can tell that each and every function of the machine was carefully thought out. 

After cleaning  new records that were played once before cleaning, there is no change in noise levels and there is no difference in sound quality. However, there is a noticeable improvement in turntable hygiene! There is always dust on new and old records. I see it when I clean my sweep arm between sides on black felt. Now there is all but zero and everything under the dust cover stays cleaner. THERE IS A MARKED REDUCTION IN STATIC! Vacuum platters will create huge amounts of static under dry conditions but every single record I washed develops none that I can notice. I am not sure why this should be the case but it is. Play a record not washed then static. Play a washed record then no static. The fluid I am using for vinyl records is a proprietary formula of distilled water, Triton X-100, Isopropyl alcohol and benzalkonium chloride. Obviously, this is not the formula to clean shellac, you'd melt it. In one week I am going to replay some of these records to see if the anti static effect is durable or not. My guess is it won't be. You might ask, why benzalkonium chloride? Fungus can live on vinyl. BAK is antiseptic. It also has surfactant properties. 

Lastly, after playing 10 records that had just been wash I inspected my stylus under magnification and there was no residue on it meaning that the fluid and cleaning process left nothing in the groove the stylus could pick up. 

Next I am going to clean some old really filthy LPs I got with the 78s and see how much I can bring them back. 

I have never cleaned new records. My sweep arm collected any dust removing it from the path of the stylus and for decade this worked well. But, I am a clean freak and I like not having to clean the turntable after a listening session. After playing a record, once the vacuum released on removing the record I would frequently get a loud pop or two when the static on the bottom of the record arced to ground. The sweep arm discharged the top of the record during play so none of this affected the sound quality. Static does not turn 180 degree corners. However, it is nice not to have any static at all. So, there are positive attributes to cleaning records that go beyond reducing noise and improving sound quality. It is also fun to watch the Double Matrix do its thing. Worth $6500 for a new one? Only if you have extra money lying around or like buying used records. 

OK, now you can beat me up:-)
 

128x128mijostyn

I have read from many sources that the l’art du son cleaner is worth finishing with. 

@lohanimal , It has a good reputation but stay tuned. Being the experimental type I am playing with various formulations and ingredients to make an attempt at figuring out what is best. I do know that L'art du son does leave a slight residue because I tried it in a Spin Clean a while back. I always thought that was a big negative but with recent developments it is possible that a very light residue, on the molecular level might possible be of benefit. The records I have cleaned will not collect static and we are now two weeks out from when the first batch was cleaned. I one of those records every Wednesday to see if it will collect static. My stylus continues to stay clean so whatever is left in the groove is non volatile and is not collecting on the stylus. I have better magnification coming with photo capability so I will be able to show pictures. The next question is if I'm leaving something on the record will it build up over time (very bad) or dissolve in the solvent every time it is cleaned. The chemicals I am using are composed of very polar molecules so they very extremely dissolvable in H2O. It is this polar characteristic that is neutralizing the static.

I am not yet sure where I am going with this but it is very interesting and a lot of fun. 

@mijostyn 

I follow a two stage process

I mix quart and isopropyl with distilled water for thee first stage then for the second stage isopropyl with a bit of 'wetting' agent.

seems to work - i got it from another forum - in that forum there is a link to a 200 odd page record cleaning book (clearly someone dedicated to his task)

I'm not mega obsessive. That said the guy from Expert stylus advised me to buy a spectacle lens cleaner, and use toothpicks around which a tiny bit of cotton wool is wrapped (a thread) with that clean the stylus between record sides because styli pick up a lot of vinyl related gunk. He said don't bother with fancy cleaners.

 

@mijostyn 

I follow a two stage process

I mix quart and isopropyl with distilled water for thee first stage then for the second stage isopropyl with a bit of 'wetting' agent.

seems to work - i got it from another forum - in that forum there is a link to a 200 odd page record cleaning book (clearly someone dedicated to his task)

I'm not mega obsessive. That said the guy from Expert stylus advised me to buy a spectacle lens cleaner, and use toothpicks around which a tiny bit of cotton wool is wrapped (a thread) with that clean the stylus between record sides because styli pick up a lot of vinyl related gunk. He said don't bother with fancy cleaners.

 

Well my Audio Desk Vinyl Cleaner Pro arrived yesterday, thing looks brand new! Maybe later today I'll try and get it going, he did include a couple of bottles of the cleaning concentrate that needs to be mixed with about 1.25 gallons of distilled water. Once mixed, does anyone know how long it last in the machine?

 

BillWojo