Here is a Link to a superb quiet Air compressor. I would say it is about 20 % louder than the Silentaire But the major advantage over silentaire is in being oilless so no hazardous silent fume , It is unnoticeable but there for someone who works for long hours. well. the silentaire is...
I have heard from a good friend of mine, that GRS is in the final stage of the new product development process regarding their new palm graver. It is an update of the 15-year-old Airtact. I can't wait to have my hands on in the future upcoming shows.