There is a process in High End Audio which purports to enhance equipment performance , called CryoTreatment. In this process the audio gear is subjected to a ramp down to -281F (or cooler, but not below -320F), followed by a soak of 20 to 40 hours, followed by a specific warm-up cycle back to R/T. It is postulated that the technical explanation for the enormous listening benefits of the process is a re-arrangement or refinement of the crystal structure of the conductor metals. The effect is so powerful that objective listeners reported a significant improvement in audio quality when the AC power cord for a preamp was so treated. I doubt my aging ears are responsive to subtleties of this nature. Anybody care to estimate how an electronic assembly, surface-mount or otherwise, including semiconductor devices, would fare thru this process? Tom Stearns 3 Brander Court Nashua, NH 03063 --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------