3) TRUTH IN ADVERTISING:

In Michael Fremer's Analog Corner, August 2022, Stereophile Magazine, he questions the matter of record cleaning and care, suggesting there be standards. Just as J.R. Boisclair of Wally Tools has disrupted myths surrounding tone arms and cartridges and their alignment, so has KirmussAudio, presenting evidence as to testing of various record cleaning machines and processes. Many sold as ultrasonics do no use cavitation. As to records, at the DC show, Kirmuss restored used records from visitors that were initially surface cleaned and shined by vacuum cleaning systems, measured was on average a1.8 dB gain over floor after processing using the Rowland Design Capri S2 preamp.

Proven, using digital microscopy and signal analyzers, only does the Kirmuss Process remove films left over from prior cleaning methods used as well as the pressing oil that surfaces during the record manufacturing process.

The Keyence VHX-7000 digital 2D/3D microscope is used to see dirt and dust caught in the pressing's release agent that surfaces to allow the "hot" record to "pop out" of the stamper, heard as a pop in a new record. The microscope measures the reduced height of the groove where the release agent has been removed.

With the "pop" removed by the Kirmuss process, a net increase in signal over floor is measured depending on the provenance of the record, this measured using signal analyzers, Shure and Ortofon Cartridge testers, and VU meters. ..and your ears! (Before and after measurements taken).

With release agent and any films left over from air or vacuum drying removed, this increases the imagery, soundstage, and timbre of the record, it's like seeing your needle ride the stamper!

As to the myth of ultrasonic frequency: The Kirmuss KA-RC-1 uses a 35 KHz, 810 Cavin measured even ultrasonic signal throughout the tank, which is modified with a passive resonance of 70 KHz to even out the known uneven effects of cavitation. Mentioning “wattage” on a product data sheet has no meaning. Rather, pressure needs to be measured throughout the tank to see even effectiveness between records from record's edge to the dead wax area. This as where ultrasonic transducers produce an audio signal which when coupled to a stainless steel metal tank then excites the liquid that it makes contact with, creating microbubbles that rise, which in turn implode unevenly, causing that uncontrolled “plasma wave”. The closer the records are to each other, standing waves negate the effects of cavitation. As dust, dirt and fungus are 3 to 5 microns in size, they are removed easily by a 35 KHz base sonic signal. The 40 KHz and especially 120 KHz and higher frequencies while they, to the layperson, create a smaller bubble size with increased velocity as a result of cavitation, to the contrary assumption, these are not destined and known to easily remove dirt and dust of 3 to 5 microns in a 6 to 35 micron “V-shaped” groove. Rather, these higher frequencies are best suited to be used on items of greater detail than those found in a record's groove. The 120 KHz range sonics if they do use cavitation are therefore destined to better remove the smaller sub micron 0.05 bacteria found in the manufacture of silicon chips, substrates, spacecraft borne items, especially bacteria found in endoscopic cameras and medical instruments. Not dirt and dust in record grooves. Further: Bacteria do not affect the needle picking up music and the detail pressed by the stamper. To 25 KHz machines as used by many DIY enthusiasts with those notorious rotisserie skewers assemblies: known for their annoying loud noise, they are best suited for removal the removal of oil and grease.