@lewm You bring up a good point about the Audioquest electronic cleaner. This topic is actually worthy of a slightly deeper exploration:
- With a few exceptions, the Audioquest, Audio-Technica, Flux, & similar products are marketed as "electronic", not "ultrasonic." As noted above, they may operate at around 400Hz, far below the freq of a Degritter, or even a toothbrush.
- At those frequencies, I suspect that they clean through friction of the bristles, not through cavitation. If the latter, though, remember that cavitation requires passing sound waves through a liquid. No cavitation occurs in dry media.
- On SteveHoffman, one user posted before-and-after photos that showed the Flux cleaner to be remarkably effective. Just one use case, but still worth a peek.
- The biggest concern I’ve heard over the years about these cleaners is the risk of damaging a cartridge’s suspection or cantilever bonding. But like so much audiophile ephemera, really, who knows? Some forum doofus or online influencer makes an unsupported conclusory statement and it gets repeated ad infinitum. Why would an oscillation at 400Hz be more or less likely than one at other frequencies to physically damage a cartridge? Maybe it would, but in the absence of supporting data, that’s just conspiracy theory.
- Mikey Fremer wrote a short ad hoc review of the Flux (still posted on AnalogPlanet), but other than that, I haven’t seen much in the way of hard data. So who knows for sure if this -- or any other stylus-cleaning tech -- does less harm than good? This seems like an opportunity for a formal comparision by someone who knows what they’re talking abou. Are you listening, WallyTools?
FWIW, I’ve used an Audioquest electronic cleaner for decades and, despite mfr recommendations, I use it dry. At one point, I examined my Adcom microline stylus after many years of use (under a consumer microscope) and saw a spotless stylus. And I never heard anything that would suggest physical damage to the cartridge (assoc’d eqpt: Quad ESLs, factory-restored Quad 2 Class A monoblocks, PS Audio 4.6 passive-preamp phono stage). Years later, WallyTools professionally analyzed my higher-end Ortofon cartridge and again photographed a clean stylus. So although I'm loathe to draw conclusions from personal anecdotes, it seems as though whatever I’m doing is working. A +1 for electronic stylus cleaners?
By the way, I suggest doing a little research before using Blu-tack (or any other gel cleaner). There have been credible reports in the press of these cleaners leaving sticky residue on stylii. I seem to recall Mikey or Boisclair publishing photos showing exactly that.
And one last thing: If you’re still interested in electronic cleaners, Hudson makes a knock-off of the audiophile-targeted products that is still available on Amazon for under $25.