Thanks, slaw. I think I agree with your above post.
From my perspective, concerns about LP resilence in the face of cavitation bubbles generated at various frequencies is thus far groundless. That doesn't mean the topic should not be discussed.
But I've yet to see any documented evidence of record cleaning damage at 40kHz up through 120kHz. Speculation, yes, but no evidence, particularly no photographic evidence. There are manufacturer claims as a part of an effort to seperate their product from others, but no documentation or evidence in support - at least that I've seen. If such evidence (beyond hearsay) is out there, please bring it forward.
On the other hand I've heard report after report of successful US cleaning and intact vinyl. Given the continuous discussion of the topic on various fora for several years US cleaning appears viable.
Of course there are reasonableness factors. How long is the LP exposed at a given frequency. What is the water temperature. What surfactants are used. I'm confident someone could find a way to damage an LP using US cleaning if they set out to do so - but that's not oriented to success. Nonetheless experimentation efforts to learn boundary conditions may be worthy.
In the meantime there is likely more damage from playing dirty records to both physical records and listening enjoyment. When done right, imo, US record cleaning is at least as effective as any other technique, is probably the most time efficient method available today, and is largely available to the average vinyl collector.
tima
From my perspective, concerns about LP resilence in the face of cavitation bubbles generated at various frequencies is thus far groundless. That doesn't mean the topic should not be discussed.
But I've yet to see any documented evidence of record cleaning damage at 40kHz up through 120kHz. Speculation, yes, but no evidence, particularly no photographic evidence. There are manufacturer claims as a part of an effort to seperate their product from others, but no documentation or evidence in support - at least that I've seen. If such evidence (beyond hearsay) is out there, please bring it forward.
On the other hand I've heard report after report of successful US cleaning and intact vinyl. Given the continuous discussion of the topic on various fora for several years US cleaning appears viable.
Of course there are reasonableness factors. How long is the LP exposed at a given frequency. What is the water temperature. What surfactants are used. I'm confident someone could find a way to damage an LP using US cleaning if they set out to do so - but that's not oriented to success. Nonetheless experimentation efforts to learn boundary conditions may be worthy.
In the meantime there is likely more damage from playing dirty records to both physical records and listening enjoyment. When done right, imo, US record cleaning is at least as effective as any other technique, is probably the most time efficient method available today, and is largely available to the average vinyl collector.
tima