@dgarretson
I prefer the 80KHz setting because of the graph of cleaning efficiency vs frequency on DIYAUDIO, although I cannot say that I’ve found a reliably detectable difference. Just a theoretical one!
The big thing is that the wavelength is much smaller, so that there is plenty of room for the wave to develop on all sides, so no disappointing surprises when you play that record in 6 months time. Also, 80KHz is quieter. And as you note, it doesn’t heat the chemistry up as much. Me lazy.
I prefer the 80KHz setting because of the graph of cleaning efficiency vs frequency on DIYAUDIO, although I cannot say that I’ve found a reliably detectable difference. Just a theoretical one!
The big thing is that the wavelength is much smaller, so that there is plenty of room for the wave to develop on all sides, so no disappointing surprises when you play that record in 6 months time. Also, 80KHz is quieter. And as you note, it doesn’t heat the chemistry up as much. Me lazy.