I own and have used two record cleaning devices, and I use them to clean both brand new, and LPs I have purchased used.
The record doctor vacuum, and a generic ultrasound bath that has a record "rotator" device clamped onto it.
The ultrasound definitely cleans more grit and dirt out of the grooves that the record doctor vacuum. It is unbelievable how much quiter that records are after a good ultrasound cleaning.
However my ultrasound does not have a dryer so there is some manual drying work after they get their bath.
The record doctor vacuum can help but I use it a lot less now that I have the ultrasound.
If I could only have one cleaning machine, it would be the ultrasound.
The down side of the ultrasound is that it requires a 10 minute cycle. So not so desirable for cleaning prior to each play. For that I just use a spray cleaner and a microfibre. Just have to be careful about static.
But once you listen to a record that has been recently cleaned with ultrasound, you won’t give it up...
p.s. sorry for the typos, just had hand surgery,,,
